!4183 修改错误的api接口调用

Merge pull request !4183 from honghecun/master

en/application-dev/reference/apis/js-apis-hitracechain.md

@@ -155,6 +155,7 @@ Sets a trace ID. This API works in synchronous manner.
 **Example**
 
 ```js
+let asyncTraceId;
 let traceId = hiTraceChain.begin("business");
 // Set the current trace ID after the service logic is executed for several times.
 hiTraceChain.setId(asyncTraceId);
@@ -297,7 +298,7 @@ Enables the specified trace flag in the **HiTraceId** instance. This API works i
 
 ```js
 let asyncTraceId = hiTraceChain.begin("business", hiTraceChain.HiTraceFlag.INCLUDE_ASYNC);
-hiTraceChain.enable(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
+hiTraceChain.enableFlag(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
 // The value of enabledDoNotCreateSpanFlag is true.
 let enabledDoNotCreateSpanFlag = hiTraceChain.isFlagEnabled(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
-```
\ No newline at end of file
+```

en/application-dev/reference/apis/js-apis-hitracemeter.md

@@ -34,7 +34,6 @@ If the trace tasks with the same name are not performed at the same time, the sa
 
 ```js
 hiTraceMeter.startTrace("myTestFunc", 1);
-hiTraceMeter.startTrace("myTestFunc", 1, 5); // The expected duration of the trace task is 5 ms.
 ```
 
 

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

@@ -155,6 +155,7 @@ setId(id: HiTraceId): void
 **示例：**
 
 ```js
+let asyncTraceId;
 let traceId = hiTraceChain.begin("business");
 // 若干业务逻辑完成后，设置当前HiTraceId。
 hiTraceChain.setId(asyncTraceId);
@@ -297,7 +298,7 @@ enableFlag(id: HiTraceId, flag: HiTraceFlag): void
 
 ```js
 let asyncTraceId = hiTraceChain.begin("business", hiTraceChain.HiTraceFlag.INCLUDE_ASYNC);
-hiTraceChain.enable(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
+hiTraceChain.enableFlag(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
 // enabledDoNotCreateSpanFlag为true
 let enabledDoNotCreateSpanFlag = hiTraceChain.isFlagEnabled(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
 ```

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

@@ -34,7 +34,6 @@ startTrace(name: string, taskId: number): void
 
 ```js
 hiTraceMeter.startTrace("myTestFunc", 1);
-hiTraceMeter.startTrace("myTestFunc", 1, 5); //从startTrace到finishTrace流程的耗时期望为5ms
 ```