请问大佬这为什么是运行成功输出错误呢
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
if(num>=1){
num=num/10;
count=count+1;
}
if(count<100&&count>=10)
System.out.println("它是个"+count+"位的数! ");
}}
