为什么不对？
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
while(num>1){
num=num/10;
count++;
}
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;
while(num>1){
num=num/10;
count++;
}
System.out.println("它是个"+count+"位的数!");
}
}
2016-12-18
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