实验2

#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("%lf\n",m);
    printf("%3c\n",ch);
    printf("%s\n%15s\n%10.5s\n%.3s\n",a,a,a,a,a);
    return 0; 
}