4回答

• 

  假装跟怀旧

  2016-06-13 22:54:18

  public class HelloWorld{

  public static void main(String[] args){

  int num = 999;

  int count = 0;

  if (num >= 0  && num<=999999999){

  while(num != 0){

  count++;

  num/=10;

  }

  System.out.println("它是个"+ count+"位的数！");

  } else{

  System.out.println("输入有误！");

  }

  照答案也不对啊

  0 0
• 

  假装跟怀旧

  2016-06-13 22:53:46

  public class HelloWorld{

  public static void main(String[] args){

  int num = 999;

  int count = 0;

  if (num >= 0  && num<=999999999){

  while(num != 0){

  count++;

  num/=10;

  }

  System.out.println("它是个"+ count+"位的数！");

  } else{

  System.out.println("输入有误！");

  }

  照答案也不对啊？...

  0 0
• 

  zhxup7072

  2016-06-13 22:27:29

  while后面加大括号干吗，代码还没完呢

  怎么总感觉你if命令里面的括号不像英文输入的呢

  0 0
• 

  qq_向前向后_03455485

  2016-06-13 22:26:07

  while大括号好像不对吧！
  

  0 0