>[info]宏定义算术运算符 ~~~C #include <stdio.h> #define LAG > #define SMA < #define EQ == int main() { int a,b; printf("请输入两个数字\n"); scanf("%d %d", &a, &b); if(a LAG b) printf("a > b\n"); else if(a SMA b) printf("a < b\n"); else if(a EQ b) printf("a = b\n"); return 0; } ~~~