??why

源自：4-15 编程练习

??why

public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
if(num>=0&&num<999999999){
    while(num!=0){
        count++;
        if (num%=0)
    else num+=1;
System.out.println("它是个"+ count+"位的数！");
    break;
else{
System.out.println("out");   
    
}
    }
}








}
}

提问者：qq_慕仙7276033 2020-09-13 20:12

个回答

H_jh: 2020-09-14 20:05:35

写的太乱，结构有问题，语法也不准确。按你的意思调整下

if(num>=0&&num<=999999999){
       while(num!=0){
       num/=10;
       count++;
       }
       System.out.println("它是个"+ count+"位的数！");
}else{
System.out.println("out");
}