请问怎么修改才能显示它是个3位的数!
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("它是个"+count+"位的数！");
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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("它是个"+count+"位的数！");
2017-05-22
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