预处理运算符

The # is a preprocessor operator, which is used to convert an argument into string i.e. quoted string.

＃是预处理程序运算符，用于将参数转换为字符串，即带引号的字符串。

Example:

例：

#include 
    
     #define STR(X)	#Xint main(){
   		printf("%s\n",STR(Hello world!));	printf("%s\n",STR(How are you?));	printf("%s\n",STR(I love programming!));		return 0;}
    

Output

输出量

Hello world!    How are you?    I love programming!

翻译自:

预处理运算符