用星形图案打印数字的程序-yiteyi-C++库

我们必须按照下面的例子打印图案。 例如：

null

Input : 5Output :  1 1*21*2*3 1*2  1Input : 9Output :    1   1*2  1*2*3 1*2*3*41*2*3*4*5 1*2*3*4  1*2*3   1*2    1

推荐：请尝试你的方法 {IDE} 首先，在进入解决方案之前。

C++

                         #include <iostream>                       
                         using                                     namespace                                     std;                       
           
                         // C++ program to print above pattern                       
                         void                                     display(                                     int                                     n)                       
                         {                       
           
                                                 // 'sp' used for space and 'st' used for star                       
                                                 int                                     sp = n / 2, st = 1;                       
           
                                                 // Outer for loop prints number of lines                       
                                                 for                                     (                                     int                                     i = 1; i <= n; i++) {                       
                                                 for                                     (                                     int                                     j = 1; j <= sp; j++) {                       
                                                 cout <<                                     " "                                     ;                       
                                                 }                       
                                   
                                                 int                                     count = 1;                       
                                                 for                                     (                                     int                                     k = 1; k <= st; k++) {                       
                                                 if                                     (k % 2 == 0)                       
                                                 cout <<                                     "*"                                     ;                       
                                                 else                       
                                                 cout << count++;                       
                                                 }                       
           
                                                 cout <<                                     ""                                     ;                       
           
                                                 if                                     (i <= n / 2) {                       
                                   
                                                 // Before reaching to half after                       
                                                 // every line space is decreased                       
                                                 // by 1 and star is increased by 2                       
                                                 sp = sp - 1;                       
                                                 st = st + 2;                       
                                                 }                       
                                                 else                                     {                       
                                   
                                                 // After reaching to half                       
                                                 // space is increased by 1                       
                                                 // and star is decreased by 2                       
                                                 sp = sp + 1;                       
                                                 st = st - 2;                       
                                                 }                       
                                                 }                       
                         }                       
           
                         // Driver Code                       
                         int                                     main()                       
                         {                       
                                                 int                                     n = 5;                       
                                                 display(n);                       
                                                 return                                     0;                       
                         }                       
           
                         // This code is contributed by vt_m                       

JAVA

                         // Java program to print above pattern                       
                         import                                     java.util.Scanner;                       
                         class                                     Pattern                       
                         {                       
                                                 void                                     display(                                     int                                     n)                       
                                                 {                       
                                   
                                                 // 'sp' used for space and 'st' used for star                       
                                                 int                                     sp = n /                                     2                                     , st =                                     1                                     ;                       
                                   
                                                 // Outer for loop prints number of lines                       
                                                 for                                     (                                     int                                     i =                                     1                                     ; i <= n; i++)                       
                                                 {                       
                                                 for                                     (                                     int                                     j =                                     1                                     ; j <= sp; j++)                       
                                                 {                       
                                                 System.out.print(                                     " "                                     );                       
                                                 }                       
                                                 int                                     count =                                     1                                     ;                       
                                                 for                                     (                                     int                                     k =                                     1                                     ; k <= st; k++)                       
                                                 {                       
                                                 if                                     (k %                                     2                                     ==                                     0                                     )                       
                                                 System.out.print(                                     "*"                                     );                       
                                                 else                       
                                                 System.out.print(count++);                       
                                                 }                       
                                   
                                                 System.out.println();                       
                                   
                                                 if                                     (i <= n /                                     2                                     )                       
                                                 {                       
                                                 // Before reaching to half after                       
                                                 // every line space is decreased                       
                                                 // by 1 and star is increased by 2                       
                                                 sp = sp -                                     1                                     ;                       
                                                 st = st +                                     2                                     ;                       
                                                 }                       
                                                 else                       
                                                 {                       
                                                 // After reaching to half                       
                                                 // space is increased by 1                       
                                                 // and star is decreased by 2                       
                                                 sp = sp +                                     1                                     ;                       
                                                 st = st -                                     2                                     ;                       
                                                 }                       
                                                 }                       
                                                 }                       
           
                                                 // Driver Code                       
                                                 public                                     static                                     void                                     main(String[] args)                       
                                                 {                       
                                                 int                                     n =                                     5                                     ;                       
                                                 Pattern p =                                     new                                     Pattern();                       
                                                 p.display(n);                       
                                                 }                       
                         }                       

Python3

                         # Python3 program to print above pattern                       
           
                         def                                     display(n):                       
           
                                                 # 'sp' used for space and                       
                                                 # 'st' used for star                       
                                                 sp                                     =                                     n                                     /                                     /                                     2                       
                                                 st                                     =                                     1                       
           
                                                 # Outer for loop prints number                       
                                                 # of lines                       
                                                 for                                     i                                     in                                     range                                     (                                     1                                     , n                                     +                                     1                                     ):                       
                                                 for                                     j                                     in                                     range                                     (                                     1                                     , sp                                     +                                     1                                     ):                       
                                                 print                                     (end                                     =                                     " "                                     )                       
           
                                                 count                                     =                                     1                       
                                                 for                                     k                                     in                                     range                                     (                                     1                                     , st                                     +                                     1                                     ):                       
                                                 if                                     (k                                     %                                     2                                     =                                     =                                     0                                     ):                       
                                                 print                                     (                                     "*"                                     , end                                     =                                     "")                       
                                                 else                                     :                       
                                                 print                                     (count, end                                     =                                     "")                       
                                                 count                                     +                                     =                                     1                       
                                   
                                                 print                                     ()                       
           
                                                 if                                     (i <                                     =                                     n                                     /                                     /                                     2                                     ):                       
                                   
                                                 # Before reaching to half after                       
                                                 # every line space is decreased                       
                                                 # by 1 and star is increased by 2                       
                                                 sp                                     =                                     sp                                     -                                     1                       
                                                 st                                     =                                     st                                     +                                     2                       
                                   
                                                 else                                     :                       
                                   
                                                 # After reaching to half                       
                                                 # space is increased by 1                       
                                                 # and star is decreased by 2                       
                                                 sp                                     =                                     sp                                     +                                     1                       
                                                 st                                     =                                     st                                     -                                     2                       
                                   
                         # Driver Code                       
                         n                                     =                                     5                       
                         display(n)                       
           
                         # This code is contributed by                       
                         # Mohit kumar 29                       

C#

                         // C# program to print above pattern                       
                         using                                     System;                       
                         class                                     Pattern                       
                         {                       
                                                 void                                     display(                                     int                                     n)                       
                                                 {                       
                                   
                                                 // 'sp' used for space and 'st' used for star                       
                                                 int                                     sp = n / 2, st = 1;                       
                                   
                                                 // Outer for loop prints number of lines                       
                                                 for                                     (                                     int                                     i = 1; i <= n; i++)                       
                                                 {                       
                                                 for                                     (                                     int                                     j = 1; j <= sp; j++)                       
                                                 {                       
                                                 Console.Write(                                     " "                                     );                       
                                                 }                       
                                                 int                                     count = 1;                       
                                                 for                                     (                                     int                                     k = 1; k <= st; k++)                       
                                                 {                       
                                                 if                                     (k % 2 == 0)                       
                                                 Console.Write(                                     "*"                                     );                       
                                                 else                       
                                                 Console.Write(count++);                       
                                                 }                       
                                   
                                                 Console.WriteLine();                       
                                   
                                                 if                                     (i <= n / 2)                       
                                                 {                       
                                                 // Before reaching to half after                       
                                                 // every line space is decreased                       
                                                 // by 1 and star is increased by 2                       
                                                 sp = sp - 1;                       
                                                 st = st + 2;                       
                                                 }                       
                                                 else                       
                                                 {                       
                                                 // After reaching to half                       
                                                 // space is increased by 1                       
                                                 // and star is decreased by 2                       
                                                 sp = sp + 1;                       
                                                 st = st - 2;                       
                                                 }                       
                                                 }                       
                                                 }                       
           
                                                 // Driver Code                       
                                                 public                                     static                                     void                                     Main()                       
                                                 {                       
                                                 int                                     n = 5;                       
                                                 Pattern p =                                     new                                     Pattern();                       
                                                 p.display(n);                       
                                                 }                       
                         }                       
                         //This code is contributed by vt_m.                       

PHP

                         <?php                       
                         // php program to print                       
                         // above pattern                       
           
                         function                                     display(                                     $n                                     )                       
                         {                       
           
                                                 // 'sp' used for space and                       
                                                 // 'st' used for star                       
                                                 $sp                                     =                                     $n                                     / 2;                       
                                                 $st                                     = 1;                       
           
                                                 // Outer for loop prints                       
                                                 // number of lines                       
                                                 for                                     (                                     $i                                     = 1;                                     $i                                     <=                                     $n                                     ;                                     $i                                     ++)                       
                                                 {                       
                                                 for                                     (                                     $j                                     = 1;                                     $j                                     <=                                     $sp                                     ;                                     $j                                     ++)                       
                                                 {                       
                                                 echo                                     " "                                     ;                       
                                                 }                       
                                   
                                                 $count                                     = 1;                       
                                                 for                                     (                                     $k                                     = 1;                                     $k                                     <=                                     $st                                     ;                                     $k                                     ++)                       
                                                 {                       
                                                 if                                     (                                     $k                                     % 2 == 0)                       
                                                 echo                                     "*"                                     ;                       
                                                 else                       
                                                 echo                                     $count                                     ++;                       
                                                 }                       
           
                                                 echo                                     ""                                     ;                       
           
                                                 if                                     (                                     $i                                     <=                                     $n                                     / 2)                       
                                                 {                       
                                   
                                                 // Before reaching to half after                       
                                                 // every line space is decreased                       
                                                 // by 1 and star is increased by 2                       
                                                 $sp                                     =                                     $sp                                     - 1;                       
                                                 $st                                     =                                     $st                                     + 2;                       
                                                 }                       
                                                 else                       
                                                 {                       
                                   
                                                 // After reaching to half                       
                                                 // space is increased by 1                       
                                                 // and star is decreased by 2                       
                                                 $sp                                     =                                     $sp                                     + 1;                       
                                                 $st                                     =                                     $st                                     - 2;                       
                                                 }                       
                                                 }                       
                         }                       
           
                         // Driver Code                       
                         $n                                     = 5;                       
                         display(                                     $n                                     );                       
           
                         // This code is contributed by mits                       
                         ?>                       

Javascript

                         <script>                       
           
                                                 // JavaScript program to print above pattern                       
                                                 function                                     display(n)                       
                                                 {                       
                                                 // 'sp' used for space and 'st' used for star                       
                                                 var                                     sp = n / 2,                       
                                                 st = 1;                       
           
                                                 // Outer for loop prints number of lines                       
                                                 for                                     (                                     var                                     i = 1; i <= n; i++) {                       
                                                 for                                     (                                     var                                     j = 1; j <= sp; j++) {                       
                                                 document.write(                                     "  "                                     );                       
                                                 }                       
           
                                                 var                                     count = 1;                       
                                                 for                                     (                                     var                                     k = 1; k <= st; k++) {                       
                                                 if                                     (k % 2 == 0)                       
                                                 document.write(                                     "*"                                     );                       
                                                 else                       
                                                 document.write(count++);                       
                                                 }                       
           
                                                 document.write(                                     "<br>"                                     );                       
           
                                                 if                                     (i <= n / 2)                       
                                                 {                       
                                                 // Before reaching to half after                       
                                                 // every line space is decreased                       
                                                 // by 1 and star is increased by 2                       
                                                 sp = sp - 1;                       
                                                 st = st + 2;                       
                                                 }                                     else                       
                                                 {                       
                                                 // After reaching to half                       
                                                 // space is increased by 1                       
                                                 // and star is decreased by 2                       
                                                 sp = sp + 1;                       
                                                 st = st - 2;                       
                                                 }                       
                                                 }                       
                                                 }                       
           
                                                 // Driver Code                       
                                   
                                                 var                                     n = 5;                       
                                                 display(n);                       
                                   
                                                 </script>                       

输出：

  1 1*21*2*3 1*2  1

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