> For the complete documentation index, see [llms.txt](https://socket.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://socket.gitbook.io/docs/2-wen-dang-docs.md).

# 2 文档(Docs)

- [2.1 概览](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan.md)
- [2.1.1 啥是Socket.io](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/what_socket.io_is.md)
- [2.1.2 Socket.io不是什么](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/what_socket.io_is_not.md)
- [2.1.3 安装](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/installing.md)
- [2.1.4 在Node HTTP 服务中使用](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/using_with_node_http_server.md)
- [2.1.5 在express中使用Socket.io](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/using_with_express.md)
- [2.1.6 发送和接收事件](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/sending_and_receiving_events.md)
- [2.1.7 限制自己使用命名空间](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/restricting_yourself_to_a_namespace.md)
- [2.1.8 发送易失性的消息](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/sending_volatile_message.md)
- [2.1.9 发送和获取数据(确认)](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/sending_and_getting_data_acknowledgements.md)
- [2.1.10 广播消息](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/broadcasting_messages.md)
- [2.1.111 作为跨浏览器使用websocket](https://socket.gitbook.io/docs/2-wen-dang-docs/2.1-gai-lan/using_it_just_as_a_cross_browser_websocket.md)
- [2.2 房间和命名空间](https://socket.gitbook.io/docs/2-wen-dang-docs/2.2-fang-jian-he-ming-ming-kong-jian.md)
- [2.2.1 命名空间](https://socket.gitbook.io/docs/2-wen-dang-docs/2.2-fang-jian-he-ming-ming-kong-jian/namespaces.md)
- [2.2.2 房间](https://socket.gitbook.io/docs/2-wen-dang-docs/2.2-fang-jian-he-ming-ming-kong-jian/rooms.md)
- [2.2.3 给外部发送消息](https://socket.gitbook.io/docs/2-wen-dang-docs/2.2-fang-jian-he-ming-ming-kong-jian/sending_message_from_the_outside-world.md)
- [2.3 从0.9迁移版本 migrating\_from\_0.9](https://socket.gitbook.io/docs/2-wen-dang-docs/2.3-cong-0.9-qian-yi-ban-ben-migratingfrom0.9.md)
- [2.3.1 身份验证差异](https://socket.gitbook.io/docs/2-wen-dang-docs/2.3-cong-0.9-qian-yi-ban-ben-migratingfrom0.9/authentication_differences.md)
- [2.3.2 日志差异](https://socket.gitbook.io/docs/2-wen-dang-docs/2.3-cong-0.9-qian-yi-ban-ben-migratingfrom0.9/log_differences.md)
- [2.3.3 快捷方式](https://socket.gitbook.io/docs/2-wen-dang-docs/2.3-cong-0.9-qian-yi-ban-ben-migratingfrom0.9/shorcuts.md)
- [2.3.4 配置差异](https://socket.gitbook.io/docs/2-wen-dang-docs/2.3-cong-0.9-qian-yi-ban-ben-migratingfrom0.9/configuration_differences.md)
- [2.3.5 解析器/协议差异](https://socket.gitbook.io/docs/2-wen-dang-docs/2.3-cong-0.9-qian-yi-ban-ben-migratingfrom0.9/parser_protocol_differences.md)
- [2.4 多路节点使用](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong.md)
- [2.4.1 Apache httpd配置](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong/apache_httpd_configuration.md)
- [2.4.2 在节点之间传递事件](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong/passing_events_between_nodes.md)
- [2.4.3 Haproxy配置](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong/haproxy_configuration.md)
- [2.4.4 粘性负载均衡](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong/sticky_load_balancing.md)
- [2.4.5 Nginx配置](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong/nginx_configuration.md)
- [2.4.6 使用node.js集群](https://socket.gitbook.io/docs/2-wen-dang-docs/2.4-duo-lu-jie-dian-shi-yong/using_node.js_cluster.md)
- [2.5 日志和调试](https://socket.gitbook.io/docs/2-wen-dang-docs/2.5-ri-zhi-he-tiao-shi.md)
- [2.5.1 可用的调试范围](https://socket.gitbook.io/docs/2-wen-dang-docs/2.5-ri-zhi-he-tiao-shi/available_debugging_scopes.md)
- [2.6 emit 备忘单](https://socket.gitbook.io/docs/2-wen-dang-docs/emit_cheatsheet.md)
- [2.7 内部概述](https://socket.gitbook.io/docs/2-wen-dang-docs/2.7-nei-bu-gai-shu.md)
- [2.7.1 内部概述引擎底层依赖关系图](https://socket.gitbook.io/docs/2-wen-dang-docs/2.7-nei-bu-gai-shu/internals_overview_dependency_graph_under_the_hood.md)
- [2.7.2 内部概述关系图](https://socket.gitbook.io/docs/2-wen-dang-docs/2.7-nei-bu-gai-shu/internals_overview_dependency_graph.md)
- [2.8 faq](https://socket.gitbook.io/docs/2-wen-dang-docs/faq.md)