题解 | #统计输入正数个数#

import java.util.*;

public class Main { public static void main(String[] args) { int count = 0; Scanner scanner = new Scanner(System.in);

    //write your code here......
   
 //注意把变量放进循环里
        while(true){
             int a=scanner.nextInt();
            if(a>0){
        count++;
            }else{
       break;
                    }
        }
   
System.out.println(count);
}

} //写个死循环一直判断，错误就退出