循环体中的语句为什么反过来写,先num,再count就会输出错误
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
do
{
count++;
num=num/10;
}
while(num!=0);
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;
do
{
count++;
num=num/10;
}
while(num!=0);
System.out.println("它是个"+count+"位的数!");
}
}
2019-03-15
举报