Stringize(#)运算符 预定义的宏 令牌粘贴(##)运算符 Stringize(#)运算符 #include <stdio.h> #define message_for(a, b) \ printf(#a " and " #b ": We love you!\n") int main(void) { message_for(Carole, Debra); return 0; } 预定义的宏 令牌粘贴(##)运算符