【需求】跑demo

 buildscript {
-    ext.kotlin_version = '1.7.20'
+    ext.kotlin_version = '1.9.0'
     repositories {
+        maven { url 'https://maven.aliyun.com/repository/google/' }
+        maven { url 'https://maven.aliyun.com/repository/public' }
+        maven { url 'https://maven.aliyun.com/repository/central' }
         google()
         mavenCentral()
     }
 
     dependencies {
+
         classpath 'com.android.tools.build:gradle:7.1.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
@@ -13,6 +17,9 @@ buildscript {
 
 allprojects {
     repositories {
+        maven { url 'https://maven.aliyun.com/repository/google/' }
+        maven { url 'https://maven.aliyun.com/repository/public' }
+        maven { url 'https://maven.aliyun.com/repository/central' }
         google()
         mavenCentral()
     }

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-all.zip
+distributionUrl=https\://mirrors.cloud.tencent.com/gradle/gradle-7.5-all.zip

@@ -76,57 +76,19 @@ class _MyHomePageState extends State<MyHomePage> {
   TextDirection _direction = TextDirection.ltr;
   final TextEditingController _controller = TextEditingController(
     text: r'''
-## ChatGPT Response
 
-Welcome to ChatGPT! Below is an example of a response with Markdown and LaTeX code:
+一袋大米25千克，已经吃了它的$\frac{2}{5}$，吃了(    )千克，还剩(    )千克。
+1. 计算已经吃的大米重量：
+   $$
+   已经吃的大米重量 = 25 \text{千克} \times \frac{2}{5} = 25 \times 0.4 = 1
+$$
+2. 计算剩余的大米重量：
+   $$
+   剩余的大米重量 = 25 \text{千克} - 10 \text{千克} = 15 \text{千克}
+$$
+【答案】
+吃了10千克，还剩15千克。
 
-### Markdown Example
-
-
-```
-class MarkdownHelper {
-
-
-  Map<String, Widget> getTitleWidget(m.Node node) => title.getTitleWidget(node);
-
-  Widget getPWidget(m.Element node) => p.getPWidget(node);
-
-  Widget getPreWidget(m.Node node) => pre.getPreWidget(node);
-
-}
-```
-
-
-You can use Markdown to format text easily. Here are some examples:
-
-- `Highlighted Text`: `This text is highlighted`
-- **Bold Text**: **This text is bold**
-- *Italic Text*: *This text is italicized*
-- [Link](https://www.example.com): [This is a link](https://www.example.com)
-- Lists:
-  1. Item 1
-  2. Item 2
-  3. Item 3
-
-### LaTeX Example
-
-You can also use LaTeX for mathematical expressions. Here's an example:
-
-- **Equation**: \( f(x) = x^2 + 2x + 1 \)
-- **Integral**: \( \int_{0}^{1} x^2 \, dx \)
-- **Matrix**:
-
-\[
-\begin{bmatrix}
-1 & 2 & 3 \\
-4 & 5 & 6 \\
-7 & 8 & 9
-\end{bmatrix}
-\]
-
-### Conclusion
-
-Markdown and LaTeX can be powerful tools for formatting text and mathematical expressions in your Flutter app. If you have any questions or need further assistance, feel free to ask!
 ''',
   );
   File? file;
@@ -181,8 +143,7 @@ Markdown and LaTeX can be powerful tools for formatting text and mathematical ex
                     ? Theme.of(context).colorScheme.onSurfaceVariant
                     : Theme.of(context)
                         .colorScheme
-                        .onSurface
-                        .withValues(alpha: 0.38),
+                        .onSurface,
               ),
             ),
             IconButton(
@@ -280,8 +241,7 @@ Markdown and LaTeX can be powerful tools for formatting text and mathematical ex
                                             border: Border.all(
                                               color: Theme.of(context)
                                                   .colorScheme
-                                                  .secondary
-                                                  .withValues(alpha: 0.5),
+                                                  .secondary,
                                               width: 1,
                                             ),
                                           ),

@@ -5,56 +5,56 @@ packages:
     dependency: transitive
     description:
       name: args
-      sha256: bf9f5caeea8d8fe6721a9c358dd8a5c1947b27f1cfaa18b39c301273594919e6
-      url: "https://pub.dev"
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.6.0"
+    version: "2.7.0"
   async:
     dependency: transitive
     description:
       name: async
-      sha256: d2872f9c19731c2e5f10444b14686eb7cc85c76274bd6c16e1816bff9a3bab63
-      url: "https://pub.dev"
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.12.0"
+    version: "2.11.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea"
-      url: "https://pub.dev"
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.2"
+    version: "2.1.1"
   characters:
     dependency: transitive
     description:
       name: characters
-      sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803
-      url: "https://pub.dev"
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.4.0"
+    version: "1.3.0"
   clock:
     dependency: transitive
     description:
       name: clock
-      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
-      url: "https://pub.dev"
+      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.2"
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
-      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
-      url: "https://pub.dev"
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.19.1"
+    version: "1.18.0"
   cross_file:
     dependency: transitive
     description:
       name: cross_file
       sha256: "7caf6a750a0c04effbb52a676dce9a4a592e10ad35c34d6d2d0e4811160d5670"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.3.4+2"
   cupertino_icons:
@@ -62,7 +62,7 @@ packages:
     description:
       name: cupertino_icons
       sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.8"
   desktop_drop:
@@ -70,17 +70,17 @@ packages:
     description:
       name: desktop_drop
       sha256: d55a010fe46c8e8fcff4ea4b451a9ff84a162217bdb3b2a0aa1479776205e15d
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.4.4"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "6a95e56b2449df2273fd8c45a662d6947ce1ebb7aafe80e550a3f68297f3cacc"
-      url: "https://pub.dev"
+      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.3.2"
+    version: "1.3.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -91,7 +91,7 @@ packages:
     description:
       name: flutter_lints
       sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.0"
   flutter_math_fork:
@@ -99,7 +99,7 @@ packages:
     description:
       name: flutter_math_fork
       sha256: "284bab89b2fbf1bc3a0baf13d011c1dd324d004e35d177626b77f2fc056366ac"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.7.3"
   flutter_svg:
@@ -107,7 +107,7 @@ packages:
     description:
       name: flutter_svg
       sha256: c200fd79c918a40c5cd50ea0877fa13f81bdaf6f0a5d3dbcc2a13e3285d6aa1b
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.17"
   flutter_test:
@@ -132,39 +132,39 @@ packages:
     description:
       name: http
       sha256: fe7ab022b76f3034adc518fb6ea04a82387620e19977665ea18d30a1cf43442f
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.3.0"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
-      url: "https://pub.dev"
+      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "4.1.2"
+    version: "4.0.2"
   leak_tracker:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: c35baad643ba394b40aac41080300150a4f08fd0fd6a10378f8f7c6bc161acec
-      url: "https://pub.dev"
+      sha256: "7f0df31977cb2c0b88585095d168e689669a2cc9b97c309665e3386f3e9d341a"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "10.0.8"
+    version: "10.0.4"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: f8b613e7e6a13ec79cfdc0e97638fddb3ab848452eff057653abd3edba760573
-      url: "https://pub.dev"
+      sha256: "06e98f569d004c1315b991ded39924b21af84cf14cc94791b8aea337d25b57f8"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "3.0.9"
+    version: "3.0.3"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
       sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.1"
   lints:
@@ -172,148 +172,148 @@ packages:
     description:
       name: lints
       sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
-      url: "https://pub.dev"
+      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.12.17"
+    version: "0.12.16+1"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
-      url: "https://pub.dev"
+      sha256: "0e0a020085b65b6083975e499759762399b4475f766c21668c4ecca34ea74e5a"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.11.1"
+    version: "0.8.0"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: e3641ec5d63ebf0d9b41bd43201a66e3fc79a65db5f61fc181f04cd27aab950c
-      url: "https://pub.dev"
+      sha256: "7687075e408b093f36e6bbf6c91878cc0d4cd10f409506f7bc996f68220b9136"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.16.0"
+    version: "1.12.0"
   nested:
     dependency: transitive
     description:
       name: nested
       sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
   path:
     dependency: transitive
     description:
       name: path
-      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
-      url: "https://pub.dev"
+      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.9.1"
+    version: "1.9.0"
   path_parsing:
     dependency: transitive
     description:
       name: path_parsing
       sha256: "883402936929eac138ee0a45da5b0f2c80f89913e6dc3bf77eb65b84b409c6ca"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.0"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
-      sha256: "07c8f0b1913bcde1ff0d26e57ace2f3012ccbf2b204e070290dad3bb22797646"
-      url: "https://pub.dev"
+      sha256: c15605cd28af66339f8eb6fbe0e541bfe2d1b72d5825efc6598f3e0a31b9ad27
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "6.1.0"
+    version: "6.0.2"
   provider:
     dependency: transitive
     description:
       name: provider
       sha256: c8a055ee5ce3fd98d6fc872478b03823ffdb448699c6ebdbbc71d59b596fd48c
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "6.1.2"
   sky_engine:
     dependency: transitive
     description: flutter
     source: sdk
-    version: "0.0.0"
+    version: "0.0.99"
   source_span:
     dependency: transitive
     description:
       name: source_span
-      sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c"
-      url: "https://pub.dev"
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.10.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
-      url: "https://pub.dev"
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.12.1"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
-      url: "https://pub.dev"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
-      url: "https://pub.dev"
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.4.1"
+    version: "1.2.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
-      url: "https://pub.dev"
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.2"
+    version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: fb31f383e2ee25fbbfe06b40fe21e1e458d14080e3c67e7ba0acfde4df4e0bbd
-      url: "https://pub.dev"
+      sha256: "9955ae474176f7ac8ee4e989dadfb411a58c30415bcfb648fa04b2b8a03afa7f"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.7.4"
+    version: "0.7.0"
   tuple:
     dependency: transitive
     description:
       name: tuple
       sha256: a97ce2013f240b2f3807bcbaf218765b6f301c3eff91092bcfa23a039e7dd151
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.2"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
-      url: "https://pub.dev"
+      sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.4.0"
+    version: "1.3.2"
   vector_graphics:
     dependency: transitive
     description:
       name: vector_graphics
       sha256: "44cc7104ff32563122a929e4620cf3efd584194eec6d1d913eb5ba593dbcf6de"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.18"
   vector_graphics_codec:
@@ -321,7 +321,7 @@ packages:
     description:
       name: vector_graphics_codec
       sha256: "99fd9fbd34d9f9a32efd7b6a6aae14125d8237b10403b422a6a6dfeac2806146"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.13"
   vector_graphics_compiler:
@@ -329,7 +329,7 @@ packages:
     description:
       name: vector_graphics_compiler
       sha256: "1b4b9e706a10294258727674a340ae0d6e64a7231980f9f9a3d12e4b42407aad"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.16"
   vector_math:
@@ -337,41 +337,41 @@ packages:
     description:
       name: vector_math
       sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.4"
   vm_service:
     dependency: transitive
     description:
       name: vm_service
-      sha256: "0968250880a6c5fe7edc067ed0a13d4bae1577fe2771dcf3010d52c4a9d3ca14"
-      url: "https://pub.dev"
+      sha256: "3923c89304b715fb1eb6423f017651664a03bf5f4b29983627c4da791f74a4ec"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "14.3.1"
+    version: "14.2.1"
   watcher:
     dependency: "direct main"
     description:
       name: watcher
       sha256: "69da27e49efa56a15f8afe8f4438c4ec02eff0a117df1b22ea4aad194fe1c104"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.1"
   web:
     dependency: transitive
     description:
       name: web
-      sha256: cd3543bd5798f6ad290ea73d210f423502e71900302dde696f8bff84bf89a1cb
-      url: "https://pub.dev"
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   xml:
     dependency: transitive
     description:
       name: xml
       sha256: b015a8ad1c488f66851d762d3090a21c600e479dc75e68328c52774040cf9226
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "6.5.0"
 sdks:
-  dart: ">=3.7.0 <4.0.0"
-  flutter: ">=3.29.0"
+  dart: ">=3.4.0 <4.0.0"
+  flutter: ">=3.22.0"