#define sqr(x) x*x #define定义的指令允许带参数。例如,下面的定义也是合法的:#define sqr(x) x*x观察下面的这个程序:#include <stdio.h>#define begin {#define end }#define writeln(num) printf("%d\n",num)#define sqr(x) x*xint mai... Other 2023-11-24 45 点赞 0 评论 68 浏览