diff --git a/code/HelloWorld/.gitignore b/code/HelloWorld/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..d2ff20141ceed86d87c0ea5d99481973005bab2b
--- /dev/null
+++ b/code/HelloWorld/.gitignore
@@ -0,0 +1,12 @@
+/node_modules
+/oh_modules
+/local.properties
+/.idea
+**/build
+/.hvigor
+.cxx
+/.clangd
+/.clang-format
+/.clang-tidy
+**/.test
+/.appanalyzer
\ No newline at end of file
diff --git a/code/HelloWorld/AppScope/app.json5 b/code/HelloWorld/AppScope/app.json5
new file mode 100644
index 0000000000000000000000000000000000000000..883c7844fcefcde35a6b06168f74cfac28727365
--- /dev/null
+++ b/code/HelloWorld/AppScope/app.json5
@@ -0,0 +1,10 @@
+{
+  "app": {
+    "bundleName": "com.chen.myapplication",
+    "vendor": "example",
+    "versionCode": 1000000,
+    "versionName": "1.0.0",
+    "icon": "$media:app_icon",
+    "label": "$string:app_name"
+  }
+}
diff --git a/code/HelloWorld/AppScope/resources/base/element/string.json b/code/HelloWorld/AppScope/resources/base/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..a804dbe3a44d5ab8c6887f0ac79db47ff19f85a7
--- /dev/null
+++ b/code/HelloWorld/AppScope/resources/base/element/string.json
@@ -0,0 +1,8 @@
+{
+  "string": [
+    {
+      "name": "app_name",
+      "value": "HelloWorld"
+    }
+  ]
+}
diff --git a/code/HelloWorld/AppScope/resources/base/media/app_icon.png b/code/HelloWorld/AppScope/resources/base/media/app_icon.png
new file mode 100644
index 0000000000000000000000000000000000000000..a39445dc87828b76fed6d2ec470dd455c45319e3
Binary files /dev/null and b/code/HelloWorld/AppScope/resources/base/media/app_icon.png differ
diff --git a/code/HelloWorld/build-profile.json5 b/code/HelloWorld/build-profile.json5
new file mode 100644
index 0000000000000000000000000000000000000000..1e69556b3411622cb2e87a87389653bb34f1b148
--- /dev/null
+++ b/code/HelloWorld/build-profile.json5
@@ -0,0 +1,41 @@
+{
+  "app": {
+    "signingConfigs": [],
+    "products": [
+      {
+        "name": "default",
+        "signingConfig": "default",
+        "compatibleSdkVersion": "5.0.0(12)",
+        "runtimeOS": "HarmonyOS",
+        "buildOption": {
+          "strictMode": {
+            "caseSensitiveCheck": true,
+            "useNormalizedOHMUrl": true
+          }
+        }
+      }
+    ],
+    "buildModeSet": [
+      {
+        "name": "debug",
+      },
+      {
+        "name": "release"
+      }
+    ]
+  },
+  "modules": [
+    {
+      "name": "entry",
+      "srcPath": "./entry",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/code/HelloWorld/code-linter.json5 b/code/HelloWorld/code-linter.json5
new file mode 100644
index 0000000000000000000000000000000000000000..073990fa45394e1f8e85d85418ee60a8953f9b99
--- /dev/null
+++ b/code/HelloWorld/code-linter.json5
@@ -0,0 +1,32 @@
+{
+  "files": [
+    "**/*.ets"
+  ],
+  "ignore": [
+    "**/src/ohosTest/**/*",
+    "**/src/test/**/*",
+    "**/src/mock/**/*",
+    "**/node_modules/**/*",
+    "**/oh_modules/**/*",
+    "**/build/**/*",
+    "**/.preview/**/*"
+  ],
+  "ruleSet": [
+    "plugin:@performance/recommended",
+    "plugin:@typescript-eslint/recommended"
+  ],
+  "rules": {
+    "@security/no-unsafe-aes": "error",
+    "@security/no-unsafe-hash": "error",
+    "@security/no-unsafe-mac": "warn",
+    "@security/no-unsafe-dh": "error",
+    "@security/no-unsafe-dsa": "error",
+    "@security/no-unsafe-ecdsa": "error",
+    "@security/no-unsafe-rsa-encrypt": "error",
+    "@security/no-unsafe-rsa-sign": "error",
+    "@security/no-unsafe-rsa-key": "error",
+    "@security/no-unsafe-dsa-key": "error",
+    "@security/no-unsafe-dh-key": "error",
+    "@security/no-unsafe-3des": "error"
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/.gitignore b/code/HelloWorld/entry/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..e2713a2779c5a3e0eb879efe6115455592caeea5
--- /dev/null
+++ b/code/HelloWorld/entry/.gitignore
@@ -0,0 +1,6 @@
+/node_modules
+/oh_modules
+/.preview
+/build
+/.cxx
+/.test
\ No newline at end of file
diff --git a/code/HelloWorld/entry/build-profile.json5 b/code/HelloWorld/entry/build-profile.json5
new file mode 100644
index 0000000000000000000000000000000000000000..4d611879c7913fb0610c686e2399258ab3a6dad1
--- /dev/null
+++ b/code/HelloWorld/entry/build-profile.json5
@@ -0,0 +1,28 @@
+{
+  "apiType": "stageMode",
+  "buildOption": {
+  },
+  "buildOptionSet": [
+    {
+      "name": "release",
+      "arkOptions": {
+        "obfuscation": {
+          "ruleOptions": {
+            "enable": false,
+            "files": [
+              "./obfuscation-rules.txt"
+            ]
+          }
+        }
+      }
+    },
+  ],
+  "targets": [
+    {
+      "name": "default"
+    },
+    {
+      "name": "ohosTest",
+    }
+  ]
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/hvigorfile.ts b/code/HelloWorld/entry/hvigorfile.ts
new file mode 100644
index 0000000000000000000000000000000000000000..c6edcd90486dd5a853cf7d34c8647f08414ca7a3
--- /dev/null
+++ b/code/HelloWorld/entry/hvigorfile.ts
@@ -0,0 +1,6 @@
+import { hapTasks } from '@ohos/hvigor-ohos-plugin';
+
+export default {
+    system: hapTasks,  /* Built-in plugin of Hvigor. It cannot be modified. */
+    plugins:[]         /* Custom plugin to extend the functionality of Hvigor. */
+}
diff --git a/code/HelloWorld/entry/obfuscation-rules.txt b/code/HelloWorld/entry/obfuscation-rules.txt
new file mode 100644
index 0000000000000000000000000000000000000000..272efb6ca3f240859091bbbfc7c5802d52793b0b
--- /dev/null
+++ b/code/HelloWorld/entry/obfuscation-rules.txt
@@ -0,0 +1,23 @@
+# Define project specific obfuscation rules here.
+# You can include the obfuscation configuration files in the current module's build-profile.json5.
+#
+# For more details, see
+#   https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/source-obfuscation-V5
+
+# Obfuscation options:
+# -disable-obfuscation: disable all obfuscations
+# -enable-property-obfuscation: obfuscate the property names
+# -enable-toplevel-obfuscation: obfuscate the names in the global scope
+# -compact: remove unnecessary blank spaces and all line feeds
+# -remove-log: remove all console.* statements
+# -print-namecache: print the name cache that contains the mapping from the old names to new names
+# -apply-namecache: reuse the given cache file
+
+# Keep options:
+# -keep-property-name: specifies property names that you want to keep
+# -keep-global-name: specifies names that you want to keep in the global scope
+
+-enable-property-obfuscation
+-enable-toplevel-obfuscation
+-enable-filename-obfuscation
+-enable-export-obfuscation
\ No newline at end of file
diff --git a/code/HelloWorld/entry/oh-package.json5 b/code/HelloWorld/entry/oh-package.json5
new file mode 100644
index 0000000000000000000000000000000000000000..248c3b7541a589682a250f86a6d3ecf7414d2d6a
--- /dev/null
+++ b/code/HelloWorld/entry/oh-package.json5
@@ -0,0 +1,10 @@
+{
+  "name": "entry",
+  "version": "1.0.0",
+  "description": "Please describe the basic information.",
+  "main": "",
+  "author": "",
+  "license": "",
+  "dependencies": {}
+}
+
diff --git a/code/HelloWorld/entry/src/main/ets/entryability/EntryAbility.ets b/code/HelloWorld/entry/src/main/ets/entryability/EntryAbility.ets
new file mode 100644
index 0000000000000000000000000000000000000000..508880af8c33aa838016d1cd4b2c68be2f447540
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/ets/entryability/EntryAbility.ets
@@ -0,0 +1,44 @@
+import { AbilityConstant, ConfigurationConstant, UIAbility, Want } from '@kit.AbilityKit';
+import { hilog } from '@kit.PerformanceAnalysisKit';
+import { window } from '@kit.ArkUI';
+
+const DOMAIN = 0x0000;
+
+export default class EntryAbility extends UIAbility {
+  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
+    this.context.getApplicationContext().setColorMode(ConfigurationConstant.ColorMode.COLOR_MODE_NOT_SET);
+    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onCreate');
+  }
+
+  onDestroy(): void {
+    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onDestroy');
+  }
+
+  onWindowStageCreate(windowStage: window.WindowStage): void {
+    // Main window is created, set main page for this ability
+    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
+
+    windowStage.loadContent('pages/Index', (err) => {
+      if (err.code) {
+        hilog.error(DOMAIN, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err));
+        return;
+      }
+      hilog.info(DOMAIN, 'testTag', 'Succeeded in loading the content.');
+    });
+  }
+
+  onWindowStageDestroy(): void {
+    // Main window is destroyed, release UI related resources
+    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');
+  }
+
+  onForeground(): void {
+    // Ability has brought to foreground
+    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onForeground');
+  }
+
+  onBackground(): void {
+    // Ability has back to background
+    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onBackground');
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets b/code/HelloWorld/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets
new file mode 100644
index 0000000000000000000000000000000000000000..8e4de99282050bad799ac892eb85ac5449364a51
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets
@@ -0,0 +1,16 @@
+import { hilog } from '@kit.PerformanceAnalysisKit';
+import { BackupExtensionAbility, BundleVersion } from '@kit.CoreFileKit';
+
+const DOMAIN = 0x0000;
+
+export default class EntryBackupAbility extends BackupExtensionAbility {
+  async onBackup() {
+    hilog.info(DOMAIN, 'testTag', 'onBackup ok');
+    await Promise.resolve();
+  }
+
+  async onRestore(bundleVersion: BundleVersion) {
+    hilog.info(DOMAIN, 'testTag', 'onRestore ok %{public}s', JSON.stringify(bundleVersion));
+    await Promise.resolve();
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/ets/pages/Index.ets b/code/HelloWorld/entry/src/main/ets/pages/Index.ets
new file mode 100644
index 0000000000000000000000000000000000000000..8e2d24ad42693fc877d51bb7820f0a9da68fa135
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/ets/pages/Index.ets
@@ -0,0 +1,23 @@
+@Entry
+@Component
+struct Index {
+  @State message: string = 'Hello World';
+
+  build() {
+    RelativeContainer() {
+      Text(this.message)
+        .id('HelloWorld')
+        .fontSize($r('app.float.page_text_font_size'))
+        .fontWeight(FontWeight.Bold)
+        .alignRules({
+          center: { anchor: '__container__', align: VerticalAlign.Center },
+          middle: { anchor: '__container__', align: HorizontalAlign.Center }
+        })
+        .onClick(() => {
+          this.message = 'Welcome';
+        })
+    }
+    .height('100%')
+    .width('100%')
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/module.json5 b/code/HelloWorld/entry/src/main/module.json5
new file mode 100644
index 0000000000000000000000000000000000000000..a1cea8b6a4560cee7bda7a2db52f310c035ab6c8
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/module.json5
@@ -0,0 +1,52 @@
+{
+  "module": {
+    "name": "entry",
+    "type": "entry",
+    "description": "$string:module_desc",
+    "mainElement": "EntryAbility",
+    "deviceTypes": [
+      "phone",
+      "tablet",
+      "2in1"
+    ],
+    "deliveryWithInstall": true,
+    "installationFree": false,
+    "pages": "$profile:main_pages",
+    "abilities": [
+      {
+        "name": "EntryAbility",
+        "srcEntry": "./ets/entryability/EntryAbility.ets",
+        "description": "$string:EntryAbility_desc",
+        "icon": "$media:layered_image",
+        "label": "$string:EntryAbility_label",
+        "startWindowIcon": "$media:startIcon",
+        "startWindowBackground": "$color:start_window_background",
+        "exported": true,
+        "skills": [
+          {
+            "entities": [
+              "entity.system.home"
+            ],
+            "actions": [
+              "action.system.home"
+            ]
+          }
+        ]
+      }
+    ],
+    "extensionAbilities": [
+      {
+        "name": "EntryBackupAbility",
+        "srcEntry": "./ets/entrybackupability/EntryBackupAbility.ets",
+        "type": "backup",
+        "exported": false,
+        "metadata": [
+          {
+            "name": "ohos.extension.backup",
+            "resource": "$profile:backup_config"
+          }
+        ],
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/resources/base/element/color.json b/code/HelloWorld/entry/src/main/resources/base/element/color.json
new file mode 100644
index 0000000000000000000000000000000000000000..3c712962da3c2751c2b9ddb53559afcbd2b54a02
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/base/element/color.json
@@ -0,0 +1,8 @@
+{
+  "color": [
+    {
+      "name": "start_window_background",
+      "value": "#FFFFFF"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/resources/base/element/float.json b/code/HelloWorld/entry/src/main/resources/base/element/float.json
new file mode 100644
index 0000000000000000000000000000000000000000..33ea22304f9b1485b5f22d811023701b5d4e35b6
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/base/element/float.json
@@ -0,0 +1,8 @@
+{
+  "float": [
+    {
+      "name": "page_text_font_size",
+      "value": "50fp"
+    }
+  ]
+}
diff --git a/code/HelloWorld/entry/src/main/resources/base/element/string.json b/code/HelloWorld/entry/src/main/resources/base/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..f94595515a99e0c828807e243494f57f09251930
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/base/element/string.json
@@ -0,0 +1,16 @@
+{
+  "string": [
+    {
+      "name": "module_desc",
+      "value": "module description"
+    },
+    {
+      "name": "EntryAbility_desc",
+      "value": "description"
+    },
+    {
+      "name": "EntryAbility_label",
+      "value": "label"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/resources/base/media/background.png b/code/HelloWorld/entry/src/main/resources/base/media/background.png
new file mode 100644
index 0000000000000000000000000000000000000000..923f2b3f27e915d6871871deea0420eb45ce102f
Binary files /dev/null and b/code/HelloWorld/entry/src/main/resources/base/media/background.png differ
diff --git a/code/HelloWorld/entry/src/main/resources/base/media/foreground.png b/code/HelloWorld/entry/src/main/resources/base/media/foreground.png
new file mode 100644
index 0000000000000000000000000000000000000000..97014d3e10e5ff511409c378cd4255713aecd85f
Binary files /dev/null and b/code/HelloWorld/entry/src/main/resources/base/media/foreground.png differ
diff --git a/code/HelloWorld/entry/src/main/resources/base/media/layered_image.json b/code/HelloWorld/entry/src/main/resources/base/media/layered_image.json
new file mode 100644
index 0000000000000000000000000000000000000000..fb49920440fb4d246c82f9ada275e26123a2136a
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/base/media/layered_image.json
@@ -0,0 +1,7 @@
+{
+  "layered-image":
+  {
+    "background" : "$media:background",
+    "foreground" : "$media:foreground"
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/resources/base/media/startIcon.png b/code/HelloWorld/entry/src/main/resources/base/media/startIcon.png
new file mode 100644
index 0000000000000000000000000000000000000000..205ad8b5a8a42e8762fbe4899b8e5e31ce822b8b
Binary files /dev/null and b/code/HelloWorld/entry/src/main/resources/base/media/startIcon.png differ
diff --git a/code/HelloWorld/entry/src/main/resources/base/profile/backup_config.json b/code/HelloWorld/entry/src/main/resources/base/profile/backup_config.json
new file mode 100644
index 0000000000000000000000000000000000000000..78f40ae7c494d71e2482278f359ec790ca73471a
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/base/profile/backup_config.json
@@ -0,0 +1,3 @@
+{
+  "allowToBackupRestore": true
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/main/resources/base/profile/main_pages.json b/code/HelloWorld/entry/src/main/resources/base/profile/main_pages.json
new file mode 100644
index 0000000000000000000000000000000000000000..1898d94f58d6128ab712be2c68acc7c98e9ab9ce
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/base/profile/main_pages.json
@@ -0,0 +1,5 @@
+{
+  "src": [
+    "pages/Index"
+  ]
+}
diff --git a/code/HelloWorld/entry/src/main/resources/dark/element/color.json b/code/HelloWorld/entry/src/main/resources/dark/element/color.json
new file mode 100644
index 0000000000000000000000000000000000000000..79b11c2747aec33e710fd3a7b2b3c94dd9965499
--- /dev/null
+++ b/code/HelloWorld/entry/src/main/resources/dark/element/color.json
@@ -0,0 +1,8 @@
+{
+  "color": [
+    {
+      "name": "start_window_background",
+      "value": "#000000"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/mock/mock-config.json5 b/code/HelloWorld/entry/src/mock/mock-config.json5
new file mode 100644
index 0000000000000000000000000000000000000000..7a73a41bfdf76d6f793007240d80983a52f15f97
--- /dev/null
+++ b/code/HelloWorld/entry/src/mock/mock-config.json5
@@ -0,0 +1,2 @@
+{
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/ohosTest/ets/test/Ability.test.ets b/code/HelloWorld/entry/src/ohosTest/ets/test/Ability.test.ets
new file mode 100644
index 0000000000000000000000000000000000000000..85c78f67579d6e31b5f5aeea463e216b9b141048
--- /dev/null
+++ b/code/HelloWorld/entry/src/ohosTest/ets/test/Ability.test.ets
@@ -0,0 +1,35 @@
+import { hilog } from '@kit.PerformanceAnalysisKit';
+import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from '@ohos/hypium';
+
+export default function abilityTest() {
+  describe('ActsAbilityTest', () => {
+    // Defines a test suite. Two parameters are supported: test suite name and test suite function.
+    beforeAll(() => {
+      // Presets an action, which is performed only once before all test cases of the test suite start.
+      // This API supports only one parameter: preset action function.
+    })
+    beforeEach(() => {
+      // Presets an action, which is performed before each unit test case starts.
+      // The number of execution times is the same as the number of test cases defined by **it**.
+      // This API supports only one parameter: preset action function.
+    })
+    afterEach(() => {
+      // Presets a clear action, which is performed after each unit test case ends.
+      // The number of execution times is the same as the number of test cases defined by **it**.
+      // This API supports only one parameter: clear action function.
+    })
+    afterAll(() => {
+      // Presets a clear action, which is performed after all test cases of the test suite end.
+      // This API supports only one parameter: clear action function.
+    })
+    it('assertContain', 0, () => {
+      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
+      hilog.info(0x0000, 'testTag', '%{public}s', 'it begin');
+      let a = 'abc';
+      let b = 'b';
+      // Defines a variety of assertion methods, which are used to declare expected boolean conditions.
+      expect(a).assertContain(b);
+      expect(a).assertEqual(a);
+    })
+  })
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/ohosTest/ets/test/List.test.ets b/code/HelloWorld/entry/src/ohosTest/ets/test/List.test.ets
new file mode 100644
index 0000000000000000000000000000000000000000..794c7dc4ed66bd98fa3865e07922906e2fcef545
--- /dev/null
+++ b/code/HelloWorld/entry/src/ohosTest/ets/test/List.test.ets
@@ -0,0 +1,5 @@
+import abilityTest from './Ability.test';
+
+export default function testsuite() {
+  abilityTest();
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/ohosTest/module.json5 b/code/HelloWorld/entry/src/ohosTest/module.json5
new file mode 100644
index 0000000000000000000000000000000000000000..55725a929993a8a18b3808d41ef037759440488b
--- /dev/null
+++ b/code/HelloWorld/entry/src/ohosTest/module.json5
@@ -0,0 +1,13 @@
+{
+  "module": {
+    "name": "entry_test",
+    "type": "feature",
+    "deviceTypes": [
+      "phone",
+      "tablet",
+      "2in1"
+    ],
+    "deliveryWithInstall": true,
+    "installationFree": false
+  }
+}
diff --git a/code/HelloWorld/entry/src/test/List.test.ets b/code/HelloWorld/entry/src/test/List.test.ets
new file mode 100644
index 0000000000000000000000000000000000000000..bb5b5c3731e283dd507c847560ee59bde477bbc7
--- /dev/null
+++ b/code/HelloWorld/entry/src/test/List.test.ets
@@ -0,0 +1,5 @@
+import localUnitTest from './LocalUnit.test';
+
+export default function testsuite() {
+  localUnitTest();
+}
\ No newline at end of file
diff --git a/code/HelloWorld/entry/src/test/LocalUnit.test.ets b/code/HelloWorld/entry/src/test/LocalUnit.test.ets
new file mode 100644
index 0000000000000000000000000000000000000000..165fc1615ee8618b4cb6a622f144a9a707eee99f
--- /dev/null
+++ b/code/HelloWorld/entry/src/test/LocalUnit.test.ets
@@ -0,0 +1,33 @@
+import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from '@ohos/hypium';
+
+export default function localUnitTest() {
+  describe('localUnitTest', () => {
+    // Defines a test suite. Two parameters are supported: test suite name and test suite function.
+    beforeAll(() => {
+      // Presets an action, which is performed only once before all test cases of the test suite start.
+      // This API supports only one parameter: preset action function.
+    });
+    beforeEach(() => {
+      // Presets an action, which is performed before each unit test case starts.
+      // The number of execution times is the same as the number of test cases defined by **it**.
+      // This API supports only one parameter: preset action function.
+    });
+    afterEach(() => {
+      // Presets a clear action, which is performed after each unit test case ends.
+      // The number of execution times is the same as the number of test cases defined by **it**.
+      // This API supports only one parameter: clear action function.
+    });
+    afterAll(() => {
+      // Presets a clear action, which is performed after all test cases of the test suite end.
+      // This API supports only one parameter: clear action function.
+    });
+    it('assertContain', 0, () => {
+      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
+      let a = 'abc';
+      let b = 'b';
+      // Defines a variety of assertion methods, which are used to declare expected boolean conditions.
+      expect(a).assertContain(b);
+      expect(a).assertEqual(a);
+    });
+  });
+}
\ No newline at end of file
diff --git a/code/HelloWorld/hvigor/hvigor-config.json5 b/code/HelloWorld/hvigor/hvigor-config.json5
new file mode 100644
index 0000000000000000000000000000000000000000..fe83c3e838abfb3629eed84f6c7092f306d818f9
--- /dev/null
+++ b/code/HelloWorld/hvigor/hvigor-config.json5
@@ -0,0 +1,22 @@
+{
+  "modelVersion": "5.0.2",
+  "dependencies": {
+  },
+  "execution": {
+    // "analyze": "normal",                     /* Define the build analyze mode. Value: [ "normal" | "advanced" | false ]. Default: "normal" */
+    // "daemon": true,                          /* Enable daemon compilation. Value: [ true | false ]. Default: true */
+    // "incremental": true,                     /* Enable incremental compilation. Value: [ true | false ]. Default: true */
+    // "parallel": true,                        /* Enable parallel compilation. Value: [ true | false ]. Default: true */
+    // "typeCheck": false,                      /* Enable typeCheck. Value: [ true | false ]. Default: false */
+  },
+  "logging": {
+    // "level": "info"                          /* Define the log level. Value: [ "debug" | "info" | "warn" | "error" ]. Default: "info" */
+  },
+  "debugging": {
+    // "stacktrace": false                      /* Disable stacktrace compilation. Value: [ true | false ]. Default: false */
+  },
+  "nodeOptions": {
+    // "maxOldSpaceSize": 8192                  /* Enable nodeOptions maxOldSpaceSize compilation. Unit M. Used for the daemon process. Default: 8192*/
+    // "exposeGC": true                         /* Enable to trigger garbage collection explicitly. Default: true*/
+  }
+}
diff --git a/code/HelloWorld/hvigorfile.ts b/code/HelloWorld/hvigorfile.ts
new file mode 100644
index 0000000000000000000000000000000000000000..f3cb9f1a87a81687554a76283af8df27d8bda775
--- /dev/null
+++ b/code/HelloWorld/hvigorfile.ts
@@ -0,0 +1,6 @@
+import { appTasks } from '@ohos/hvigor-ohos-plugin';
+
+export default {
+    system: appTasks,  /* Built-in plugin of Hvigor. It cannot be modified. */
+    plugins:[]         /* Custom plugin to extend the functionality of Hvigor. */
+}
diff --git a/code/HelloWorld/oh-package-lock.json5 b/code/HelloWorld/oh-package-lock.json5
new file mode 100644
index 0000000000000000000000000000000000000000..7fcf818273347b97063c0c0a151bb14770ca1c79
--- /dev/null
+++ b/code/HelloWorld/oh-package-lock.json5
@@ -0,0 +1,27 @@
+{
+  "meta": {
+    "stableOrder": true
+  },
+  "lockfileVersion": 3,
+  "ATTENTION": "THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.",
+  "specifiers": {
+    "@ohos/hamock@1.0.0": "@ohos/hamock@1.0.0",
+    "@ohos/hypium@1.0.21": "@ohos/hypium@1.0.21"
+  },
+  "packages": {
+    "@ohos/hamock@1.0.0": {
+      "name": "@ohos/hamock",
+      "version": "1.0.0",
+      "integrity": "sha512-K6lDPYc6VkKe6ZBNQa9aoG+ZZMiwqfcR/7yAVFSUGIuOAhPvCJAo9+t1fZnpe0dBRBPxj2bxPPbKh69VuyAtDg==",
+      "resolved": "https://ohpm.openharmony.cn/ohpm/@ohos/hamock/-/hamock-1.0.0.har",
+      "registryType": "ohpm"
+    },
+    "@ohos/hypium@1.0.21": {
+      "name": "@ohos/hypium",
+      "version": "1.0.21",
+      "integrity": "sha512-iyKGMXxE+9PpCkqEwu0VykN/7hNpb+QOeIuHwkmZnxOpI+dFZt6yhPB7k89EgV1MiSK/ieV/hMjr5Z2mWwRfMQ==",
+      "resolved": "https://ohpm.openharmony.cn/ohpm/@ohos/hypium/-/hypium-1.0.21.har",
+      "registryType": "ohpm"
+    }
+  }
+}
\ No newline at end of file
diff --git a/code/HelloWorld/oh-package.json5 b/code/HelloWorld/oh-package.json5
new file mode 100644
index 0000000000000000000000000000000000000000..9c36c086ae807ea710acd9e480cb6cc1d18bd011
--- /dev/null
+++ b/code/HelloWorld/oh-package.json5
@@ -0,0 +1,10 @@
+{
+  "modelVersion": "5.0.2",
+  "description": "Please describe the basic information.",
+  "dependencies": {
+  },
+  "devDependencies": {
+    "@ohos/hypium": "1.0.21",
+    "@ohos/hamock": "1.0.0"
+  }
+}