应该是对的吧
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;
}
System.out.println("它是个"+count+"位的数!");
}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;
}
System.out.println("它是个"+count+"位的数!");
}2016-01-20
举报