1.Angular JS使用表达式把数据绑定到HTML;
2.Angular JS表达式写在双大括号中:{{expression}}
**Angular JS表达式把数据绑定到HTML,这与ng-bind指令有异曲同工之妙;
**Angular JS将在表达式书写的位置“输出”数据
**Angular JS表达式很像javascript表达式:它们可以包含文字,运算和变量;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src=http://apps.bding.com/libs/angular.js/1.4.6/angular.min.js></script>
</head>
<body>
<div ng-app="">
<p>我的第一个表达式:{{5+5}}</p>
</div>
</body>
</html>
3.Angular JS数字:
<div ng-app="" ng-init="quantity=1;cost=5">
<p>总价:{{quantity*cost}}</p>
</div>
或使用ng-bind:
<div ng-app="" ng-init="quantity=1;cost=5;">
<p>总价:<span ng-bind="quantity*cost"></span></p>
</div>
4.Angular JS字符串:
<div ng-app="" ng-init="firstName='John';lastNmae='Doe'">
<p>姓名:{{firstName+""+lastName}}</p>
</div>
或使用ng-bind:
<div ng-app="" ng-init="firstName='John';lastName='Doe'">
<p>姓名:<span ng-bind="firstName+' '+lastName"></span></p>
</div>
5.Angular JS对象:
<div ng-app="" ng-init="person={firstName:'John',lastName:'Doe'}">
<p>姓名:{{person.lastName}}</p>
</div>
或使用ng-bind:
<div ng-app="" ng-init="person={firstName:'John', lastName:'Doe'}">
<p>姓名:<span ng-bind="person.lastName"></span></p>
</div>
6.Angular JS 数组:
<div ng-app="" ng-init="points=[1,15,19,2,40]">
<p>第三个值为:{{poins[2]}}</p>
</div>
或使用ng-bind:
<div ng-app="" ng-init="points=[1,15,19,2,40]">
<p>第三个值为:<span ng-bind="points[2]"></span></p>
</div>
7.AngularJS表达式与javascript表达式:
**类似于javascript表达式,AngularJS表达式可以包含字母,操作符,变量;
**与javascript表达式不同,AngularJS表达式可以写在HTML中;
**与javascript表达式不同,AngularJS表达式不支持条件判断,循环及异常;
**与javascript表达式不同,AngularJS表达式支持过滤器;