贺老师教学链接 C语言及程序设计初步 本课讲解
让程序会计算:求a和b两个数之和
#include <stdio.h>int main( ){int a,b,sum;scanf("%d %d", &a, &b);sum=a+b;printf("%d\n", sum);return 0;}
用户界面友好(或罗里罗嗦)的程序
#include <stdio.h>int main( ){int a,b,sum;printf("请输入两个整数:");scanf("%d %d", &a, &b);sum=a+b;printf("这两个整数的和是:%d\n", sum);printf("计算完毕,谢谢使用!\n");return 0;}
再例:英尺到米的转换
#include <stdio.h>int main( ){float f,m;printf("Enter the length in feet: ");scanf("%f", &f);m = f / 3.28;printf("%f feet is %f meters.\n", f, m);return 0;}