fixed 073cbb37 from https://gitee.com/esterzhou/docs/pulls/15008

Update docs (14304)
Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/arkui-ts/ts-basic-components-stepper.md

@@ -34,11 +34,11 @@ None
 
 | Name| Description|
 | -------- | -------- |
-| onFinish(callback: () =&gt; void) | Invoked when the **nextLabel** of the last **\<StepperItem>** in the **\<Stepper>** is clicked.|
+| onFinish(callback: () =&gt; void) | Invoked when the **nextLabel** of the last **\<StepperItem>** in the **\<Stepper>** is clicked and the **ItemState** attribute is set to **Normal**.|
 | onSkip(callback: () =&gt; void) | Invoked when the current **\<StepperItem>** is **ItemState.Skip** and the **nextLabel** is clicked.|
-| onChange(callback: (prevIndex?: number, index?: number) =&gt; void) | Invoked when the user switches to the previous or next step.<br>- **prevIndex**: index of the step page before the switching.<br>- **index**: index of the step page after the switching, that is, index of the previous or next page.|
-| onNext(callback: (index?: number, pendingIndex?: number) =&gt; void) | Invoked when a user switches to the next step.<br>- **index**: index of the current step page.<br>- **pendingIndex**: index of the next page.|
-| onPrevious(callback: (index?: number, pendingIndex?: number) =&gt; void) | Invoked when a user switches to the previous step.<br>- **index**: index of the current step page.<br>- **pendingIndex**: index of the previous page.|
+| onChange(callback: (prevIndex?: number, index?: number) =&gt; void) | Invoked when the **prevLabel** of the current **\<StepperItem>** is clicked to switch to the previous step page; or when the **nextLabel** of the current (not the last) **\<StepperItem>** is clicked to switch to the next step page and the **ItemState** attribute is set to **Normal**.<br>- **prevIndex**: index of the step page before the switching.<br>- **index**: index of the step page after the switching, that is, index of the previous or next step page.|
+| onNext(callback: (index?: number, pendingIndex?: number) =&gt; void) | Invoked when the **nextLabel** of the current (not the last) **\<StepperItem>** is clicked and the **ItemState** attribute is set to **Normal**.<br>- **index**: index of the current step page.<br>- **pendingIndex**: index of the next step page.|
+| onPrevious(callback: (index?: number, pendingIndex?: number) =&gt; void) | Invoked when the **prevLabel** of the current **\<StepperItem>** is clicked to switch to the previous step page.<br>- **index**: index of the current step page.<br>- **pendingIndex**: index of the previous step page.|
 
 
 ## Example
@@ -122,7 +122,6 @@ struct StepperExample {
             .itemTextStyle()
         }.itemStyle()
       }
-      .nextLabel('Finish')
     }
     .backgroundColor('#F1F3F5')
     .onFinish(() => {

en/application-dev/reference/arkui-ts/ts-basic-components-stepperitem.md

@@ -22,7 +22,7 @@ StepperItem()
 
 | Name| Type| Description|
 | -------- | -------- | -------- |
-| prevLabel | string | Text label of the button on the left. When the **\<Stepper>** contains more than one page, the default value for all pages except the first page is **Back**.|
+| prevLabel | string | Text label of the button on the left, which is not displayed on the first page. When the **\<Stepper>** contains more than one page, the default value for all pages except the first page is **Back**.|
 | nextLabel | string | Text label of the button on the right. The default value is **Start** for the last page and **Next** for the other pages.|
 | status | ItemState | Display status of **nextLabel** in the stepper.<br>Default value: **ItemState.Normal**|
 
@@ -31,9 +31,9 @@ StepperItem()
 |   Name   |   Value   | Description|
 | -------- | -------- |-------- |
 | Normal |  0  |The button on the right is clickable and can navigate users to the next **\<StepperItem>** when it is clicked.|
-| Disabled |  1  |The button on the right is grayed out and unavailable.|
+| Disabled |  1  |The button on the right is disabled.|
 | Waiting |  2  | The button on the right is not displayed, and a progress bar is displayed instead.|
-| Skip |  3  |The button on the right reads "Skip". You can define the processing logic for this state in the **onSkip** callback of the stepper.|
+| Skip |  3  |The button on the right reads "Skip" by default. You can define the processing logic for this state in the **onSkip** callback of the stepper.|
 
 
 ## Example