C语言中的弧函数-yiteyi-C++库

头文件显示图形。h包含 arc（） 函数，它绘制一条中心位于（x，y）且半径给定的圆弧。开始角是角度的起点，结束角是角度的终点。角度的值可以在0到360度之间变化。

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语法：

void arc(int x, int y, int start_angle,
            int end_angle, int radius);

where,
(x, y) is the center of the arc.
start_angle is the starting angle and 
end_angle is the ending angle.
'radius' is the Radius of the arc.

例如：

Input : x=250, y=250, start_angle = 155, end_angle = 300, radius = 100
Output :


Input : x=250, y=250, start_angle = 0, end_angle = 300, radius = 100;
Output :

推荐：请尝试你的方法 {IDE} 首先，在进入解决方案之前。

下面是arc（）函数的实现：

                     // C implementation of arc function                   
                     #include <graphics.h>                   
                             
                     // driver code                   
                     int                               main()                   
                     {                   
                                         // gm is Graphics mode which is                   
                                         // a computer display mode that                   
                                         // generates image using pixels.                   
                                         // DETECT is a macro defined in                   
                                         // "graphics.h" header file                   
                                         int                               gd = DETECT, gm;                   
                             
                                         // location of the arc                   
                                         int                               x = 250;                   
                                         int                               y = 250;                   
                             
                                         // starting angle and ending angle                   
                                         // of the arc                   
                                         int                               start_angle = 155;                   
                                         int                               end_angle = 300;                   
                             
                                         // radius of the arc                   
                                         int                               radius = 100;                   
                             
                                         // initgraph initializes the graphics system                   
                                         // by loading a graphics driver from disk                   
                                         initgraph(&gd, &gm,                               ""                               );                   
                             
                                         // arc function                   
                                         arc(x, y, start_angle, end_angle, radius);                   
                             
                                         getch();                   
                             
                                         // closegraph function closes the graphics                   
                                         // mode and deallocates all memory allocated                   
                                         // by graphics system                   
                                         closegraph();                   
                             
                                         return                               0;                   
                     }                   

输出：

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