!9662 【OpenHarmony开源贡献者计划2022】ts自定义弹窗中的接口中参数gridCount补全

Merge pull request !9662 from 刘磊/master

zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md

@@ -11,7 +11,7 @@
 
 ## 接口
 
-CustomDialogController(value:{builder: CustomDialog, cancel?: () => void, autoCancel?: boolean, alignment?: DialogAlignment, offset?: Offset, customStyle?: boolean})
+CustomDialogController(value:{builder: CustomDialog, cancel?: () => void, autoCancel?: boolean, alignment?: DialogAlignment, offset?: Offset, customStyle?: boolean,gridCount?: number})
 
 
 - 参数