编辑代码

#include <stdio.h>
int Testsushu(int n){
    if(n<=1)return 0;
    for(int i=2; i<n;i++){
        if(n%i==0)
        return 0;
    }
    return 1;
}
int main () {
    int n;
    printf("please input number");
  scanf("%d",&n);
  
 if(Testsushu(n)==1)
 printf("%d is shu su",n) ;
 else printf("%d is not su shu",n);
    return 0;
}