令牌粘贴(##)运算符 Stringize(#)运算符 Defined() 操作符 令牌粘贴(##)运算符 #include <stdio.h> #define tokenpaster(n) printf ("token" #n " = %d", token##n) int main(void) { int token34 = 40; tokenpaster(34); return 0; } Stringize(#)运算符 Defined() 操作符