Worker doc fix

issue: https://gitee.com/openharmony/docs/issues/I62RHZSigned-off-by: Nwangzhaoyong <wangzhaoyong@huawei.com>
Change-Id: I73ca361732a8a56cd2decba8acaeaba1c08e481f

zh-cn/application-dev/reference/apis/js-apis-worker.md

@@ -422,7 +422,7 @@ dispatchEvent(event: Event): boolean
 
 ```js
 const workerInstance = new worker.ThreadWorker("workers/worker.js");
-workerInstance.dispatchEvent({type:"alert"});
+workerInstance.dispatchEvent({type: "alert"});
 ```
 
 
@@ -444,7 +444,7 @@ workerInstance.removeAllListener();
 
 ## ThreadWorkerGlobalScope<sup>9+</sup>
 
-Worker线程用于与宿主线程通信的类，通过postMessage接口发送消息给宿主线程、close接口销毁Worker线程。DedicatedWorkerGlobalScope类继承[GlobalScope<sup>9+</sup>](#globalscope9)。
+Worker线程用于与宿主线程通信的类，通过postMessage接口发送消息给宿主线程、close接口销毁Worker线程。ThreadWorkerGlobalScope类继承[GlobalScope<sup>9+</sup>](#globalscope9)。
 
 
 ### postMessage<sup>9+</sup>
@@ -609,7 +609,7 @@ workerInstance.addEventListener("alert", (e)=>{
 
 ## GlobalScope<sup>9+</sup>
 
-Worker线程自身的运行环境，WorkerGlobalScope类继承[WorkerEventTarget](#workereventtarget9)。
+Worker线程自身的运行环境，GlobalScope类继承[WorkerEventTarget](#workereventtarget9)。
 
 ### 属性
 
@@ -1401,7 +1401,7 @@ parentPort.onerror = function(e){
 ```js
 // main.js
 import worker from '@ohos.worker';
-const workerInstance = new worker.Thread("workers/worker.js");
+const workerInstance = new worker.ThreadWorker("workers/worker.js");
 workerInstance.postMessage("message from main to worker");
 workerInstance.onmessage = function(d) {
   // 当worker线程传递obj2时，data即为obj2。data没有Init、SetName的方法
@@ -1413,12 +1413,9 @@ workerInstance.onmessage = function(d) {
 import worker from '@ohos.worker';
 const parentPort = worker.workerPort;
 class MyModel {
+    name:"undefined"
     Init() {
-        this.name = "wzy"
-        this.age = 18
-    }
-    SetName() {
-        this.name = "WZY"
+        this.name = "MyModel"
     }
 }
 parentPort.onmessage = function(d) {