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如何在一个Packgae 中调用他上一级Packgae 中的 class
如题。
我也做了一个小实验。也出错。特来请教!
============ Packagetest.java ===========
import Packgae1.P1;
public class Packagetest{
public void show(){
System.out.println("Go! Go! Go!");
}
public Packagetest(){
P1 p1 = new P1(this);
}
public static void main(String []args){
new Packagetest();
}
}
================== P1.java =================
package Packgae1;
public class P1{
Packgaetest pt;
public P1(Packgaetest pt){
this.pt = pt;
lalala();
}
public void lalala(){
this.pt.show();
}
}
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