练习时差计数器#include <stdio.h>int main(){ // 计算时差 int hourse1,minute1; int hourse2,minute2; scanf("%d %d %d %d",&hourse1,&minute1,&hourse2,&minute2); int value = (minute2+hourse2*60)-(minute1+hourse1*60); printf("时间差是: %d时,%d分\n",value/60,value%60); return 0;} 身高换算器#include <stdio.h>int main(){ printf("请分别输入身高的英尺和英寸:\n(如: '5 7' 等价于 5英尺7英寸)"); double foot; double inch; scanf("%lf %lf",&foot,&inch); printf("身高是%f米。\n=>",((foot+inch/12)*0.3048)); return 0;} 计算复利#include "stdio.h"int main(){ int xf; // 常量1 const double Val = 1.0; // 利率3.3% const double L = 0.003; printf("请输入本金:"); scanf("%d", &xf); // 转存3年的量 double amount = xf*(Val+L)*(Val+L)*(Val+L); printf("value: %f\n",amount); return 0;}