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angular学习笔记(九)-css类和样式3

2024-07-03 20:10:35   230人阅读

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:


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