我说说他们的实现方法。
一，js算scroll的高度，就是滚动条滚了多高。
二，算悬浮的导航距离顶部的高度。
三，window的时候，对比这两个高度，如果一大于二，那么导航加个fixed。（IE7以上都有效）
然后用js处理下IE6就行。
建议去搜下相关js代码，我一般都用jQuery写。
你想要的table的头部也是一个道理，但是thead没办法fixed吧？
所以弄2个table吧，1个table放头部内容，1个table放具体内容。
另外，expression慎用，消耗浏览器资源不是一点两点。
<!DOCTYPE html><html>
<head>
<meta charset="utf-8"/>
<title></title>
<style>
table, th , td {
border: 1px solid grey
border-collapse: collapse
padding: 5px
}
table tr:nth-child(odd) {
background-color: #f1f1f1
}
table tr:nth-child(even) {
background-color: #ffffff
}
</style>
</head>
<body>
我的笔记
<div ng-app="myTodoApp" ng-controller="myTodoCtrl">
<table>
<tr ng-repeat="two in twonames">
<td style="position: fixedbackground-color: #ccc height: 47px">{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
<td>{{two.Name}}</td>
<td>{{ two.Country }}</td>
</tr>
</table>
</div>
</body>
<script src="angular.min.js" type="text/javascript"></script>
<script src="myTodoApp.js"></script>
<script src="myTodoCtrl.js"></script>
</html>
myTodoApp.js:
JavaScript code
?
1
var app = angular.module("myTodoApp",[])
myTodoCtrl.js:
app.controller("myTodoCtrl",function($scope){
$scope.message=""
$scope.firstnames=[{"Name" : "Alfreds Futterkiste","City" : "Berlin","Country" : "Germany"},{"Name" : "Berglunds snabbköp","City" : "Luleå","Country" : "Sweden"},{"Name" : "Centro comercial Moctezuma","City" : "México D.F.","Country" : "Mexico"},{"Name" : "Ernst Handel","City" : "Graz","Country" : "Austria"},{"Name" : "FISSA Fabrica Inter. Salchichas S.A.","City" : "Madrid","Country" : "Spain"},{"Name" : "Galería del gastrónomo","City" : "Barcelona","Country" : "Spain"}]
$scope.twonames=[{"Name" : "Alfreds Futterkiste","City" : "Berlin","Country" : "Germany"},{"Name" : "Berglunds snabbköp","City" : "Luleå","Country" : "Sweden"},{"Name" : "Centro comercial Moctezuma","City" : "México D.F.","Country" : "Mexico"},{"Name" : "Ernst Handel","City" : "Graz","Country" : "Austria"},{"Name" : "FISSA Fabrica Inter. Salchichas S.A.","City" : "Madrid","Country" : "Spain"},{"Name" : "Galería del gastrónomo","City" : "Barcelona","Country" : "Spain"},{"Name" : "Island Trading","City" : "Cowes","Country" : "UK"},{"Name" : "Königlich Essen","City" : "Brandenburg","Country" : "Germany"},{"Name" : "Laughing Bacchus Wine Cellars","City" : "Vancouver","Country" : "Canada"},{"Name" : "Magazzini Alimentari Riuniti","City" : "Bergamo","Country" : "Italy"},{"Name" : "North/South","City" : "London","Country" : "UK"},{"Name" : "Paris spécialités","City" : "Paris","Country" : "France"},{"Name" : "Rattlesnake Canyon Grocery","City" : "Albuquerque","Country" : "USA"},{"Name" : "Simons bistro","City" : "København","Country" : "Denmark"},{"Name" : "The Big Cheese","City" : "Portland","Country" : "USA"},{"Name" : "Vaffeljernet","City" : "Århus","Country" : "Denmark"},{"Name" : "Wolski Zajazd","City" : "Warszawa","Country" : "Poland"}]
$scope.left=function(){ return 100- $scope.message.length}
$scope.clear=function(){$scope.message=""}
$scope.save = function(){$scope.message=""}
})
基本效果就是这样
