public class HelloWorld{public static void main(String[] args){int num = 999;int count = 0;if (num>=0&&num<=99999999);while( num!=0){count=count+1;num/=10;System.out.println("它是個"+count+"位的數(shù)！");?}? ?}}
我不想用while 可以用for 或者其他代替嗎
qq_慕移動2083430
2019-01-14 11:39:12
