處理bug
public?class?HelloWorld{
????public?static?void?main(String[]?args){
????????int?num?=?999;
????????int?count?=?0;
????????while(num?>?1)?{
????????????num?=?num?/?10;
????????????count?+=?1;
????????}
????????System.out.println("它是個"?+?count?+"位的數(shù)！");
????}
}有漏洞，萬一 “num == 0”，該怎么辦呢？
2017-11-09
沒有漏洞啊，你已經(jīng)定義了num=999；且while循環(huán)至num=0時就結(jié)束了啊