关于线程学习

2018.5.21

1、c#  backGroundWorker 学习转载！:https://blog.csdn.net/coderookieguo/article/details/72723310

2、

public class Jtest{

public static void main(String[] args) {

StringBuffer a=new StringBuffer ("A");

StringBuffer b=new StringBuffer ("B");

oper(a,b);

System.out.print(a+","+b);

}

static void oper(StringBuffer c,StringBuffer d){

c.append("B");

d=c;

}

}

输出结果  AB,B