看看哪错了?
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 1;
for(;(num -Math.pow(10,count))>=0;count++)
{
}
System.out.println("它是个"+count+"位的数!");
}
}
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 1;
for(;(num -Math.pow(10,count))>=0;count++)
{
}
System.out.println("它是个"+count+"位的数!");
}
}
2017-03-23
举报