AngularJS 细节

AngularJS 表达式（{{ expression }}）类似于 AngularJS ng-bind
例子：

<span>表达式</span>
<div ng-app="" ng-init="quantity=1;cost=5">

<p>总价： {{ quantity * cost }}</p>

</div>
<span>ng-bind：</span>
<div ng-app="" ng-init="quantity=1;cost=5">

<p>总价： <span ng-bind="quantity * cost"></span></p>

</div>