实验2

#include<stdio.h>
int main(){
    int a=5,b=7,c=100,d,e,f;

    d = a/b*c;
    e = a*c/b;
    f = c/b*a;
    printf("d=%d, e=%d, f=%d\n",d,e,f);

    return 0;
}

#include<stdio.h>
int main(){
    int x=1234;
    float f=123.456;
    double m=123.456;
    char ch=‘a‘;
    char a[]="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%2.5s\n%.3s\n",a,a,a,a,a);

    return 0;
}