運行成功，輸出錯誤是哪里出錯了？
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
do{
? ? count++;
? ? num/=10;
}while(num>0);
System.out.println("它是個"+count+"位的數(shù)!");
}
}
慕運維2069379
2019-09-12
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2019-09-13
最后的"數(shù)"后面的感嘆號是中文格式的
2019-09-12
public?class?HelloWorld{????public?static?void?main(String[]?args){????????int?num?=?999;????????int?count?=?0;????????do{???????????count++;???????????num?=?num?/?10;???????????//count++;????????}while(num?>?0);????????System.out.println("它是個"+count+"位的數(shù)！");}}