Socket 类 客户端例子

       当客户程序需要和服务器通讯时,客户程序在客户机创建一个socket对象,Socket对象常用2中创建方式:

             1.public Socket(InetAddress addr,int port);

             2.pubic Socket(String host,int port);

       用例:

             Socket sk= new Socket("192.168.2.1",13);

             IputStream is= sk.getInputStream();

             //read from the stream

             sk.close();

             is.close();

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