add 编程常用代码片段 in course toc

contents/SUMMARY.md

@@ -228,13 +228,29 @@
     - [HashMap todo](std/hashmap.md)
     - [Iterator常用方法 todo](std/iterator.md)
 
-- [场景化用例 todo](cases/intro.md)
-  - [文件操作 todo](cases/file.md)
-  - [网络通信 todo](cases/protocol.md)
-  - [JSON处理 todo](cases/json.md)
-  - [HTTP请求 todo](cases/http.md)
+- [Ctrl-C/V: 编程常用代码片段 todo](cases/intro.md)
+  - [命令行解析 todo](cases/cmd.md)
+  - [配置文件解析 todo](cases/config.md)
+  - [编解码 todo](cases/encoding/intro.md)
+    - [JSON](cases/encoding/json.md)
+    - [CSV](cases/encoding/csv.md)
+    - [protobuf](cases/encoding/protobuf.md)
+  - [文件系统 todo](cases/file/intro.md)
+    - [文件读写](cases/file/file.md)
+    - [目录操作](cases/file/dir.md)
+  - [网络通信 todo](cases/protocol/intro.md)
+    - [HTTP](cases/protocol/http.md)
+    - [TCP](cases/protocol/tcp.md)
+    - [UDP](cases/protocol/udp.md)
+    - [gRPC](cases/protocol/grpc.md)
   - [数据库访问 todo](cases/database.md)
   - [正则表达式 todo](cases/regexp.md)
+  - [加密解密 todo](cases/crypto.md)
+  - [时间日期](cases/date.md)
+  - [开发调试 todo](cases/dev/intro.md)
+    - [日志](cases/dev/logs.md)
+    - [性能分析](cases/dev/profile.md)
+    
 <!-- 
 - [Rust区块链入门]()
 - [Rust游戏开发入门]()

contents/cases/cmd.md

@@ -0,0 +1 @@
+# 命令行

contents/cases/config.md

@@ -0,0 +1 @@
+# 配置文件 todo

contents/cases/crypto.md

@@ -0,0 +1 @@
+# 加密解密 todo

contents/cases/date.md

@@ -0,0 +1 @@
+# 时间日期

contents/cases/dev/intro.md

@@ -0,0 +1 @@
+# 开发调试

contents/cases/dev/logs.md

@@ -0,0 +1 @@
+# 日志

contents/cases/dev/profile.md

@@ -0,0 +1 @@
+# 性能分析

contents/cases/encoding/csv.md

@@ -0,0 +1 @@
+# CSV

contents/cases/encoding/intro.md

@@ -0,0 +1 @@
+# 编解码

contents/cases/encoding/json.md

@@ -0,0 +1 @@
+# JSON

contents/cases/encoding/protobuf.md

@@ -0,0 +1 @@
+# protobuf

contents/cases/file.md

@@ -1 +0,0 @@
-# 文件操作

contents/cases/file/dir.md

@@ -0,0 +1 @@
+# 目录操作

contents/cases/file/file.md

@@ -0,0 +1 @@
+# 文件读写

contents/cases/file/intro.md

@@ -0,0 +1 @@
+# 文件系统 todo

contents/cases/http.md

@@ -1 +0,0 @@
-# HTTP请求 todo

contents/cases/json.md

@@ -1 +0,0 @@
-# JSON处理 todo

contents/cases/protocol/grpc.md

@@ -0,0 +1 @@
+# gRPC

contents/cases/protocol/http.md

@@ -0,0 +1 @@
+# HTTP

contents/cases/protocol/tcp.md

@@ -0,0 +1 @@
+# TCP

contents/cases/protocol/udp.md

@@ -0,0 +1 @@
+# UDP