#include<stdio.h>
int main()
{
int x=1234;
float f=123.456;
double m=123.456;
char ch='a';
char a[]="Hello,world";//定义一个数组a，数组中连续存放了字符串常量Hello world
int y=3,z=4;
printf("%d %d\n",y,z);
printf("y=%d,z=%d\n",y,z);
printf("%8d,%2d\n",x,x);
printf("%f,%8f,%8.1f,%0.2f,%.2e\n",f,f,f,f,f);
printf("%1f\n",m);
printf("%3c\n",ch);
printf("%s\n%15s\n%10.5s\n%2.5s\n%.3s\n",a,a,a,a,a);
return 0;
}
#include<stdio.h>
int main()
{
int level;
printf("输入等级（1-5）：");
scanf("%d",&level);
switch(level){
case 1:printf("high翻了\n"); break;
case 2:printf("low爆了\n"); break;
default:printf("一言难尽\n");
}
return 0;
}
#include<stdio.h>
int main()
{ int answer;
printf("输入一个答案A,B,C,D:\n");
scanf("%c",&answer);
switch(answer){
case 'A':printf("binggo,you are right\n");break;
default:printf("wrong,try again\n");
}
return 0;
}
