再来看一个选择li列表的例子:
点击li中的任意项,被点击的li高亮显示:
<!DOCTYPE html>
<html ng-app>
<head>
<title>6.3css类和样式</title>
<meta charset="utf-8">
<script src="../angular.js"></script>
<script src="script.js"></script>
<style type="text/css">
li.cur {
background:#C0DCC0
}
</style>
</head>
<body>
<div ng-controller = "Restaurant">
<ul>
<li ng-repeat="restaurant in restaurants" ng-class="{cur:$index==selRow}" ng-click="choose($index)">
<span>{{restaurant.name}}</span><span>{{restaurant.food}}</span><span>{{restaurant.price}}</span>
</li>
</ul>
</div>
</body>
</html>
function Restaurant ($scope){
$scope.selRow = null;
$scope.restaurants = [
{"name":"happy lemon","food":"greenTea","price":"￥15"},
{"name":"coco","food":"milkTea","price":"￥10"},
{"name":"good fruit","food":"fruits","price":"￥20"}
];
$scope.choose = function(i){
$scope.selRow = i
}
}
ng-class="{cur:$index==selRow}":
在这里,ng-class属性的cur类名,绑定表达式 $index==selRow,
然后给每个li绑定点击事件回调,点击任意li,就把selRow的值变为$index.这样,当前被点击的项就会被添加类名cur,高亮显示.
这里可以看到,angular绑定的事件回调,可以在执行的时候传入参数
原始状态:
点击第二项:
