!7480 修改i18n和intl代码示例

Merge pull request !7480 from sunyaozu/master

zh-cn/application-dev/reference/apis/js-apis-i18n.md

@@ -698,7 +698,8 @@ static getLocationName(number: string, locale: string): string
 
 **示例：** 
   ```js
-  var location = i18n.PhoneNumberFormat.getLocationName('15812312345', 'zh-CN');
+  var phonenumberfmt = new i18n.PhoneNumberFormat("CN");
+  phonenumberfmt.getLocationName("15812312345", "zh-CN");
   ```
 
 

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

@@ -540,7 +540,7 @@ constructor(locale: string | Array<string>, options?: PluralRulesOptions)
 
 **示例：** 
   ```js
-  var pluralRules= new Intl.PluraRules("zh-CN", {"localeMatcher": "lookup", "type": "cardinal"});
+  var pluralRules= new Intl.PluralRules("zh-CN", {"localeMatcher": "lookup", "type": "cardinal"});
   ```