int num = 0101; 为什么输出说是两位数？
public class HelloWorld{
public static void main(String[] args){
int num = 0101;
int count = 0;
if(num >=0 && num <=99999999){
while(num !=0){
count++;
num/=10;
}
System.out.println("它是个"+count+"位数!");
} else{
System.out.println("输入有误！");
}
}
}
