!7716 【轻量级 PR】：update...

!7716 【轻量级 PR】：update zh-cn/application-dev/reference/arkui-ts/ts-basic-components-checkboxgroup.md.修改代码格式
Merge pull request !7716 from 李毅/N/A

zh-cn/application-dev/reference/arkui-ts/ts-basic-components-checkboxgroup.md

@@ -53,19 +53,19 @@ CheckboxGroup( group?: string )
 @Entry
 @Component
 struct CheckboxExample {
-
   build() {
     Scroll() {
       Column() {
-          Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }){
-             CheckboxGroup({group : 'checkboxGroup'})
+        Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }) {
+          CheckboxGroup({ group: 'checkboxGroup' })
             .selectedColor(0xed6f21)
-               .onChange((itemName:CheckboxGroupResult) => {
+            .onChange((itemName: CheckboxGroupResult) => {
               console.info("TextPicker::dialogResult is" + JSON.stringify(itemName))
             })
           Text('select all').fontSize(20)
         }
-          Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }){
+
+        Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }) {
           Checkbox({ name: 'checkbox1', group: 'checkboxGroup' })
             .select(true)
             .selectedColor(0x39a2db)
@@ -74,7 +74,8 @@ struct CheckboxExample {
             })
           Text('Checkbox1').fontSize(20)
         }
-         Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }){
+
+        Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }) {
           Checkbox({ name: 'checkbox2', group: 'checkboxGroup' })
             .select(false)
             .selectedColor(0x39a2db)
@@ -83,7 +84,8 @@ struct CheckboxExample {
             })
           Text('Checkbox2').fontSize(20)
         }
-         Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }){
+
+        Flex({ justifyContent: FlexAlign.Start, alignItems: ItemAlign.Center }) {
           Checkbox({ name: 'checkbox3', group: 'checkboxGroup' })
             .select(true)
             .selectedColor(0x39a2db)