版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/angular-socket-io/0.7.0/socket.js
- https://cdn.bootcdn.net/ajax/libs/angular-socket-io/0.7.0/socket.min.js
- https://cdn.bootcdn.net/ajax/libs/angular-socket-io/0.7.0/socket.min.js.map