二重循環(huán)語句
package Hello;
public class MyName{
?int num = 999;
?int count = 0;????????????????????????????????? //這行錯(cuò)哪里了
?if(num >= 0 && num <= 999999999){
?while(num != 0){
???? count++;
???? num /= 10;
?}
???? System.out.println("它是個(gè)"+count+"位的數(shù)");
?}else{
???? System.out.println("輸入錯(cuò)誤");
?}
}
}
?
2016-12-25
前面少了一句：
public static void main(String[] args){