找错。报错显示cpu cannot be resolved to a variable、price cannot be resolved to a variable、
package imooc;
//类名
public class Phone {
public static void main(String[] args){
Phone helloPhone=new Phone();
double screen=89;
float cpu;
float price;
helloPhone.goodPhone();
helloPhone.xingNeng();
}
public void goodPhone(){
System.out.println(price);
System.out.println("好手机价格也好!");
}
public float xingNeng(){
// float cpu=89.0f;
System.out.println(cpu);
return cpu;
}
}不是说成员变量的作用域是整个类的内部吗？
