include<stdio.h>include<stdlib.h>intmain(void){FILE*fp1,*fp2;intm,n,i,x,y,z,f;fp1=fopen("in.txt","r");/*假设读入文本文件分是in.txt,写出文本文件为out.txt*/fp2=fopen("out.txt...

if(a==-1&&b==-1)break;//退出测试的条件。//测试代码。}2当读到eof时，结束测试。同样读入两个整型数据，以空格分隔，当读到eof时结束测试。代码可以写作：inta,b;while(scanf("%d%d",&a,&b)!

输入多个字符n则这样while(scanf("%c",&n)!=NULL)字符串也可以Ctrl+z表示结束

intmain(){intk=1;intx,y,sum=0;while(scanf("%d%d",&x,&y)){if(x==0&&y==0)break;sum=x+y;printf("Case%d:%d\n",k++,sum);}return0;}

include"stdio.h"main(){intn,a[100],sum=0,i;while(scanf("%d",&n)==1){if(n==0)break;sum=0;for(i=0;i<n;i++){scanf("%d",&a[i]);sum+=a[i];if(i==n-1)printf("%d\n",

intn;while(scanf("%d",&n)!=EOF,n)//或者写成while(scanf("%d",&n)!=EOF)然后在循环里加一句if(n==0)break;{//笭场蒂渡郦盗垫醛叮互if(n==0)break;if((n/10000==n%10)&&(n/1000%10==n/10%...

%d",&n);for(i=1;i<=n;i++){printf("inputforaandb:");scanf("%d%d",&a,&b);printf("thesumis%d\n",a+b);}return0;}...

int(inta,intb)//最大公约数{intr;do{r=a%b;a=b;b=r;}while(r!=0);returna;}intlcm(inta,intb)//最小公倍数{returna/(a,b)*b;}intmain(void){intn...

intmain(){intC,t;chars[60];inti,j;scanf("%d",&C);for(i=0;i<C;i++){scanf("%d",&t);fgets(s,60,stdin);for(j=0;j<t;j=j+2){printf("%c%c",s[j+1],s[j]);}}r...

51单片机C语言编程实例基础知识:51单片机编程基础单片机的外部结构:1.DIP40双列直插;2.P0,P1,P2,P3四个8位准双向I/O引脚;(作为I/O输入时,要先输出高电平)3.电源VCC(PIN40)和地线GND(PIN20);4.高电平复位RESET...