!20675 4.0Beta1：废弃接口使用修改

Merge pull request !20675 from 葛亚芳/cherry-pick-1688978363

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

@@ -1308,7 +1308,7 @@ setData(data: PasteData, callback: AsyncCallback<void>): void
 **示例：**
 
 ```js
-let pasteData = pasteboard.createPlainTextData('content');
+let pasteData = pasteboard.createData(pasteboard.MIMETYPE_TEXT_PLAIN, 'content');
 let systemPasteboard = pasteboard.getSystemPasteboard();
 systemPasteboard.setData(pasteData, (err, data) => {
     if (err) {
@@ -1351,7 +1351,7 @@ setData(data: PasteData): Promise<void>
 **示例：**
 
 ```js
-let pasteData = pasteboard.createPlainTextData('content');
+let pasteData = pasteboard.createData(pasteboard.MIMETYPE_TEXT_PLAIN, 'content');
 let systemPasteboard = pasteboard.getSystemPasteboard();
 systemPasteboard.setData(pasteData).then((data) => {
     console.info('Succeeded in setting PasteData.');