ng-init為變量設置初始值，只要在ng-app范圍內，對任何一其定義的變量均有效；其方式為ng-init="變量名稱=‘變量值’"；注意外邊雙引號，初始值要用單引號：
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script src="angular.js"></script>
</head>
<body >
<div ng-app=""ng-init="gender='male'">
<h1>ng-init="arr='xxx'"初始值定義</h1>
<h2>{{gender}}</h2>
</div>
</body>
</html>
顯示效果為下圖：
