diff --git a/ETSUI/eTSUrlString/README.md b/ETSUI/eTSUrlString/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..48320ed7cd4d3415382a3ca830dc62986d01c870
--- /dev/null
+++ b/ETSUI/eTSUrlString/README.md
@@ -0,0 +1,19 @@
+# URL字符串解析
+
+### 简介
+
+本示例对URL字符串的查找参数进行了增删改查的一系列操作，使得读者对URL的结构用途更加明了。
+
+### 使用说明
+
+1.点击**插入键值对到查询字符串**按钮，会将左面文本框的参数插入到查找参数后面。
+
+2.点击**删除键值对**按钮，会将指定名称的键值对删除。
+
+3.点击**获取指定名称对应的第一个值**按钮，将查找参数中该参数名对应的第一个参数值，并显示出来。
+
+4.点击**设置键的新值**按钮，将与名称相关联的键值对全部删除，并赋予该键名一个新值。
+
+### 约束与限制
+
+本示例仅支持在标准系统上运行。
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/build.gradle b/ETSUI/eTSUrlString/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..c2c8bbaed13747b913f19cef893f515bc32d02a7
--- /dev/null
+++ b/ETSUI/eTSUrlString/build.gradle
@@ -0,0 +1,34 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+apply plugin: 'com.huawei.ohos.app'
+
+//For instructions on signature configuration, see https://developer.harmonyos.com/cn/docs/documentation/doc-guides/ide_debug_device-0000001053822404#section1112183053510
+ohos {
+    compileSdkVersion 7
+    supportSystem "standard"
+}
+
+buildscript {
+    repositories {
+        maven {
+            url 'https://repo.huaweicloud.com/repository/maven/'
+        }
+        maven {
+            url 'https://developer.huawei.com/repo/'
+        }
+    }
+    dependencies {
+        classpath 'com.huawei.ohos:hap:3.0.3.4'
+        classpath 'com.huawei.ohos:decctest:1.2.6.0'
+    }
+}
+
+allprojects {
+    repositories {
+        maven {
+            url 'https://repo.huaweicloud.com/repository/maven/'
+        }
+        maven {
+            url 'https://developer.huawei.com/repo/'
+        }
+    }
+}
diff --git a/ETSUI/eTSUrlString/entry/build.gradle b/ETSUI/eTSUrlString/entry/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..1587dd1948941f3eaaf092ae6cae7969cb6895ff
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/build.gradle
@@ -0,0 +1,21 @@
+apply plugin: 'com.huawei.ohos.hap'
+//For instructions on signature configuration, see https://developer.harmonyos.com/cn/docs/documentation/doc-guides/ide_debug_device-0000001053822404#section1112183053510
+ohos {
+    compileSdkVersion 7
+    defaultConfig {
+        compatibleSdkVersion 7
+    }
+    buildTypes {
+        release {
+            proguardOpt {
+                proguardEnabled false
+                rulesFiles 'proguard-rules.pro'
+            }
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.har'])
+    testImplementation 'junit:junit:4.13.1'
+}
diff --git a/ETSUI/eTSUrlString/entry/src/main/config.json b/ETSUI/eTSUrlString/entry/src/main/config.json
new file mode 100644
index 0000000000000000000000000000000000000000..e6ceaef27667f3a522147d4786e44f1238ce34d1
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/config.json
@@ -0,0 +1,66 @@
+{
+  "app": {
+    "bundleName": "ohos.samples.etsurlstring",
+    "vendor": "samples",
+    "version": {
+      "code": 1000000,
+      "name": "1.0.0"
+    }
+  },
+  "deviceConfig": {},
+  "module": {
+    "package": "ohos.samples.etsurlstring",
+    "name": ".MyApplication",
+    "mainAbility": ".MainAbility",
+    "deviceType": [
+      "phone"
+    ],
+    "distro": {
+      "deliveryWithInstall": true,
+      "moduleName": "entry",
+      "moduleType": "entry",
+      "installationFree": false
+    },
+    "abilities": [
+      {
+        "skills": [
+          {
+            "entities": [
+              "entity.system.home"
+            ],
+            "actions": [
+              "action.system.home"
+            ]
+          }
+        ],
+        "orientation": "unspecified",
+        "visible": true,
+        "srcPath": "MainAbility",
+        "name": ".MainAbility",
+        "srcLanguage": "ets",
+        "icon": "$media:icon",
+        "description": "$string:description_mainability",
+        "formsEnabled": false,
+        "label": "$string:entry_MainAbility",
+        "type": "page",
+        "launchType": "standard"
+      }
+    ],
+    "js": [
+      {
+        "mode": {
+          "syntax": "ets",
+          "type": "pageAbility"
+        },
+        "pages": [
+          "pages/index"
+        ],
+        "name": ".MainAbility",
+        "window": {
+          "designWidth": 720,
+          "autoDesignWidth": false
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/app.ets b/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/app.ets
new file mode 100644
index 0000000000000000000000000000000000000000..bf28e58b36cf11db491d3f00768ef2c9e41d05cf
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/app.ets
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export default {
+  onCreate() {
+    console.info('Application onCreate')
+  },
+  onDestroy() {
+    console.info('Application onDestroy')
+  },
+}
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/common/paramOption.ets b/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/common/paramOption.ets
new file mode 100644
index 0000000000000000000000000000000000000000..0eaded4f779113185a184f202204d3ac35699993
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/common/paramOption.ets
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import url from '@ohos.url'
+
+var urlObject = new url.URL('https://developer.harmonyos.com/?')
+var paramsObject = new url.URLSearchParams(urlObject.search.slice(1))
+
+@Component
+export struct FirstOption{
+  private options:Resource[] = [$r('app.string.insert'), $r('app.string.delete'),
+                                $r('app.string.getFirst'), $r('app.string.setValue')]
+  private nodeValue:string = 'nodeValue'
+  private nodeKey:string = 'node'
+  private nodeNum:number = 0
+
+  @Link outputs:string
+
+  insertNode(){
+    this.nodeNum ++
+    paramsObject.append(this.nodeKey, this.nodeValue + this.nodeNum)
+    this.outputs = urlObject.toString() + paramsObject.toString()
+  }
+
+  deleteNode(){
+    if(paramsObject.has(this.nodeKey)){
+      paramsObject.delete(this.nodeKey)
+      this.outputs = urlObject.toString() + paramsObject.toString()
+      this.nodeNum = 0
+    }
+    else{
+      this.outputs = "It does not exist. Please insert first"
+    }
+  }
+
+  getFirstNode(){
+    if(paramsObject.has(this.nodeKey)){
+      var fod = paramsObject.get(this.nodeKey);
+      this.outputs = fod.toString()
+    }
+    else{
+      this.outputs = "It does not exist. Please insert first"
+    }
+  }
+
+  changeValue(){
+    paramsObject.set(this.nodeKey, 'newValue')
+    this.nodeNum = 0
+    this.outputs = urlObject.toString() + paramsObject.toString()
+  }
+
+  build(){
+    Column(){
+      Flex({direction:FlexDirection.Row,alignItems:ItemAlign.Center,justifyContent:FlexAlign.Center,wrap:FlexWrap.Wrap}){
+        ForEach(this.options,item=> {
+          Button() {
+            Text(item)
+              .fontSize(20)
+              .textAlign(TextAlign.Center)
+              .fontColor(Color.White)
+              .width('340')
+          }
+          .type(ButtonType.Capsule)
+          .backgroundColor('#0D9FFB')
+          .padding(5)
+          .margin({top:10 })
+          .onClick(() => {
+            var index = this.options.indexOf(item)
+            switch(index) {
+              case 0:
+                this.insertNode()
+                break
+              case 1:
+                this.deleteNode()
+                break
+              case 2:
+                this.getFirstNode()
+                break
+              case 3:
+                this.changeValue()
+                break
+              default:
+                break
+            }
+          })
+        },item=>JSON.stringify(item))
+      }.width('100%')
+    }.width('100%')
+  }
+}
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/pages/index.ets b/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/pages/index.ets
new file mode 100644
index 0000000000000000000000000000000000000000..a530339a594d01c20dcec1b15b2c95f640481464
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/ets/MainAbility/pages/index.ets
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {FirstOption} from '../common/paramOption'
+const URL_NET: string= "https://developer.harmonyos.com/?"
+
+@Entry
+@Component
+struct Index {
+  @State output: string = URL_NET
+
+  build() {
+    Column() {
+      Text($r("app.string.entry_MainAbility"))
+        .width('100%')
+        .height(50)
+        .backgroundColor('#0D9FFB')
+        .fontColor(Color.White)
+        .fontSize(20)
+        .padding({ left: 15 })
+      Scroll() {
+        Column() {
+          Text(this.output)
+            .width('95%').height('30%')
+            .fontSize(15)
+            .padding(10)
+            .margin({ left: 10, right: 10, top: 10 })
+            .border({ width: 2, radius: 5, color: Color.Gray })
+          Text(URL_NET).fontSize(15).margin({top:15}).fontWeight(FontWeight.Bold)
+          FirstOption({outputs:$output})
+        }
+      }
+    }
+    .width('100%')
+    .height('100%')
+  }
+}
+
diff --git a/ETSUI/eTSUrlString/entry/src/main/resources/base/element/string.json b/ETSUI/eTSUrlString/entry/src/main/resources/base/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..6de6dfb2e5f421584e66ca3dd7bef18efd8dec86
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/resources/base/element/string.json
@@ -0,0 +1,36 @@
+{
+  "string": [
+    {
+      "name": "entry_MainAbility",
+      "value": "eTSURLString"
+    },
+    {
+      "name": "description_mainability",
+      "value": "ETS_Empty Ability"
+    },
+    {
+      "name": "url",
+      "value": "URL:"
+    },
+    {
+      "name": "insert",
+      "value": "Insert Key-value"
+    },
+    {
+      "name": "delete",
+      "value": "Delete Key-value"
+    },
+    {
+      "name": "getFirst",
+      "value": "GetFirst Key-value"
+    },
+    {
+      "name": "setValue",
+      "value": "Set new value of key"
+    },
+    {
+      "name": "pleaseInsert",
+      "value": "It does not exist. Please insert first"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/entry/src/main/resources/base/media/icon.png b/ETSUI/eTSUrlString/entry/src/main/resources/base/media/icon.png
new file mode 100644
index 0000000000000000000000000000000000000000..ce307a8827bd75456441ceb57d530e4c8d45d36c
Binary files /dev/null and b/ETSUI/eTSUrlString/entry/src/main/resources/base/media/icon.png differ
diff --git a/ETSUI/eTSUrlString/entry/src/main/resources/en/element/string.json b/ETSUI/eTSUrlString/entry/src/main/resources/en/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..6de6dfb2e5f421584e66ca3dd7bef18efd8dec86
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/resources/en/element/string.json
@@ -0,0 +1,36 @@
+{
+  "string": [
+    {
+      "name": "entry_MainAbility",
+      "value": "eTSURLString"
+    },
+    {
+      "name": "description_mainability",
+      "value": "ETS_Empty Ability"
+    },
+    {
+      "name": "url",
+      "value": "URL:"
+    },
+    {
+      "name": "insert",
+      "value": "Insert Key-value"
+    },
+    {
+      "name": "delete",
+      "value": "Delete Key-value"
+    },
+    {
+      "name": "getFirst",
+      "value": "GetFirst Key-value"
+    },
+    {
+      "name": "setValue",
+      "value": "Set new value of key"
+    },
+    {
+      "name": "pleaseInsert",
+      "value": "It does not exist. Please insert first"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/entry/src/main/resources/zh/element/string.json b/ETSUI/eTSUrlString/entry/src/main/resources/zh/element/string.json
new file mode 100644
index 0000000000000000000000000000000000000000..e29a2f9a38694f6a0a3df2c3b5e70af56683eb14
--- /dev/null
+++ b/ETSUI/eTSUrlString/entry/src/main/resources/zh/element/string.json
@@ -0,0 +1,36 @@
+{
+  "string": [
+    {
+      "name": "entry_MainAbility",
+      "value": "eTSURLString"
+    },
+    {
+      "name": "description_mainability",
+      "value": "ETS_Empty Ability"
+    },
+    {
+      "name": "url",
+      "value": "URL:"
+    },
+    {
+      "name": "insert",
+      "value": "插入键值对到查询字符串"
+    },
+    {
+      "name": "delete",
+      "value": "删除键值对"
+    },
+    {
+      "name": "getFirst",
+      "value": "获取指定名称对应的第一个值"
+    },
+    {
+      "name": "setValue",
+      "value": "设置键的新值"
+    },
+    {
+      "name": "pleaseInsert",
+      "value": "不存在，请先插入"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/ETSUI/eTSUrlString/screenshot/device/screenshot.png b/ETSUI/eTSUrlString/screenshot/device/screenshot.png
new file mode 100644
index 0000000000000000000000000000000000000000..7df99f7d0b01440aa20489f5b659cbbd2766814b
Binary files /dev/null and b/ETSUI/eTSUrlString/screenshot/device/screenshot.png differ
diff --git a/ETSUI/eTSUrlString/settings.gradle b/ETSUI/eTSUrlString/settings.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..4773db73233a570c2d0c01a22e75321acfbf7a07
--- /dev/null
+++ b/ETSUI/eTSUrlString/settings.gradle
@@ -0,0 +1 @@
+include ':entry'