ng-app指令AngularJS中的"语言"用于定义AngularJS应用程序的根元素。该指令在页面加载时自动初始化AngularJS应用程序。它可以用来在AngularJS应用程序中加载各种模块。
语法如下：
<element ng-app=""> Contents... </element>范例1：本示例使用ng-app指令定义默认的AngularJS应用程序。
< html >
< head >
< title >AngularJS ng-app Directive</ title >
< script src =
"https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js" >
</ script >
</ head >
< body style = "text-align:center" >
< h2 style = "color:green" >ng-app directive</ h2 >
< div ng-app = "" ng-init = "name='lsbin'" >
< p >{{ name }} is the portal for geeks.</ p >
</ div >
</ body >
</ html >输出如下：
范例2：本示例使用ng-app指令定义默认的AngularJS应用程序。
< html >
< head >
< title >AngularJS ng-app Directive</ title >
< script src =
"https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js" >
</ script >
</ head >
< body ng-app = "" style = "text-align: center" >
< h1 style = "color:green" >lsbin</ h1 >
< h2 >ng-app Directive</ h2 >
< div >
< p >Name: < input type = "text" ng-model = "name" ></ p >
< p >You entered: < span ng-bind = "name" ></ span ></ p >
</ div >
</ body >
</ html >输出如下：
