结果已经出来了，为什么还是报错？
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!");
}
}
2016-11-22
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