代码中count++是什么意思？-慕课网

代码中count++是什么意思？

来源：4-15 编程练习

weibo_周文showtime_0

2016-02-28 20:01

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;// a/=b等同于a=a/b

}
System.out.println("他是个"+count+"位的数！");
}else{
System.out.println("输入有误！");
}
}
}

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4回答

qq_慕神1420022

2022-03-30 19:06:52

好的，谢谢老师
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0 0
少年心_

2016-02-28 20:37:51

count是位数。count++是count=count+1。当num不等于0时，count至少是1.所以先执行count++，然后再判断num是否是高位数。

0 3
要然

2016-02-28 20:15:59

count++ --> 即count自加，相当于：count=count+1；

0 1
publisher

2016-02-28 20:08:17

count++是count加1，代码类似于count=count+1;

0 1

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