来自「C语言相关程序」· 代码 · 共 30 行

#include <stdio.h> 
#include<math.h>
#include<stdio.h> 
#include<process.h>
void main() 
{ 
int n,i,j=1; 
n=101; 
system("cls"); 
while(n<=200) 
 { 
 for(i=2;i<(int)sqrt(n);i++) 
 { if(n%i==0) 
 {i=n;break;} 

 if(i<n) 

 { 
 printf("\nThis is a prime.%d",n); 
 j++; 
 break; 
 }/*break is jump out of for??*/ 
 } 
 n++; 
 } 
printf("\n"); 
printf("%d prime number in total.\n",j); 

system("pause");  
}