基于cocos2d-x 引擎，从服务器下载zip文件的功能，服务器的资源包名固定，服务器得有版本号，客户端根据本地的版本号与服务器端的比较，不同既检测到有更新，下载之后直接解压了，存放路径可自己指定-Based on cocos2d-x engine, from a functional server to download zip files, resource package name servers fixed, the server must have a version number, the client based on the comparison of local version and the server side, different both detects updates directly extracted after downloading , the storage path can specify your own