#include<stdio.h> int main() { int a,b,c,t; printf("输入三个整数:"); scanf("%d,%d,%d",&a,&b,&c); if(a>b) {t=a;a=b;b=t;} if(a>c) {t=a;a=c;c=t;} if(b>c) {t=b;b=c;c=t;} printf("%d,%d,%d",a,b,c); return 0; } 输入:102,12,3 输出: 3,12,102