Python中转义字符的打印方法-yiteyi-C++库

转义字符是通常用于执行某些任务的字符，它们在代码中的使用指示编译器采取映射到该字符的适当操作。

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例子：

''  -->  Leaves a line
'	'  -->  Leaves a space

                     # Python code to demonstrate escape character                   
                     # string                   
                             
                     ch                               =                               "ILove	Geeksforgeeks"                   
                             
                     print                               (                               "The string after resolving escape character is : "                               )                   
                     print                               (ch)                   

输出：

The string after resolving escape character is : 
I
Love    Geeksforgeeks

但在某些情况下，不希望解析转义，即整个未解析字符串待打印。这些都是通过以下方式实现的。

使用repr（）

此函数以可打印格式返回字符串，即不解析转义序列。

                     # Python code to demonstrate printing                   
                     # escape characters from repr()                   
                             
                     # initializing target string                   
                     ch                               =                               "ILove	Geeksforgeeks"                   
                             
                     print                               (                               "The string without repr() is : "                               )                   
                     print                               (ch)                   
                             
                     print                               (                               "

"                               )                   
                             
                     print                               (                               "The string after using repr() is : "                               )                   
                     print                               (                               repr                               (ch))                   

输出：

The string without repr() is : 
I
Love    Geeksforgeeks


The string after using repr() is : 
'ILove	Geeksforgeeks'

使用“r/r”

将“r”或“r”添加到目标字符串会在内部触发字符串的repr（），并停止转义字符的解析。

                     # Python code to demonstrate printing                   
                     # escape characters from "r" or "R"                   
                             
                     # initializing target string                   
                     ch                               =                               "ILove	Geeksforgeeks"                   
                             
                     print                               (                               "The string without r / R is : "                               )                   
                     print                               (ch)                   
                             
                     print                               (                               "

"                               )                   
                             
                     # using "r" to prevent resolution                   
                     ch1                               =                               r                               "ILove	Geeksforgeeks"                   
                             
                     print                               (                               "The string after using r is : "                               )                   
                     print                               (ch1)                   
                             
                     print                               (                               "

"                               )                   
                             
                     # using "R" to prevent resolution                   
                     ch2                               =                               R                               "ILove	Geeksforgeeks"                   
                             
                     print                               (                               "The string after using R is : "                               )                   
                     print                               (ch2)                   

输出：

The string without r/R is : 
I
Love    Geeksforgeeks


The string after using r is : 
ILove	Geeksforgeeks


The string after using R is : 
ILove	Geeksforgeeks

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