为什么结果都输出来了，还让我再试一试
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
while(num > 0){
num=num/10;
count++;
}System.out.println("它是个"+count+"位的数");
}
}
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public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
while(num > 0){
num=num/10;
count++;
}System.out.println("它是个"+count+"位的数");
}
}
2016-09-12
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