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分享public class A{
public int aa;
}public class B{
private int bb;
public int getBb(){
return bb;
}
public void setBb(num){
this.bb = num;
}
}A myA = new A();
myA.aa = 22;B myB = new B();
myB.setBb(33);
public class B{//这样的话不一样了吧
private int bb;//bb作当前操作数组的下标
private int[] cc;
public int getBb(){
return bb;
}
public void setBb(num){
this.bb = num;
if(bb<0)bb=0;
}
}