Hy大家,第一个问题在这里。
我正在学习angularjs,而现在我已经被困在"控制器和范围"章节。
我试图搜索一个对象数组并显示与我的查询匹配的项目;不幸的是我的屏幕空白。
这是我的代码:
<!DOCTYPE html>
<html ng-app="">
<head>
<title>Search and print with Scope</title>
</head>
<body>
<div ng-controller="Controller">
<input type="search" ng-model="q" placeholder="CPU" />
<ul>
<li ng-repeat="proc in cpu | filter:q">
{{proc.house}} - {{proc.model}}
</li>
</ul>
</div>
<script src="angular.min.js"></script>
<script>
function Controller($scope)
$scope.cpu = [
{ house: 'Intel', model: 'I7' },
{ house: 'AMD', model: 'Ryzen' },
{ house: 'Qualcomm', modello: 'Snapdragon' }
];
</script>
</body>
</html>
出了什么问题?
编辑EDIT:对于那些可能会看到这个问题的人,我的错误是两次调用ng-app,一次在html标签中,一次在body标签中。 编辑:我又来了;我使用给定的答案修改了代码,但我仍然有一个搜索框和一个空白屏幕。我怀疑是否与代码有关,因为我还试图将其复制并粘贴到一个新文件中,但我得到了相同的结果。可能是什么?
<!DOCTYPE html>
<html ng-app="">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script>
var app = angular.module('demoApp', [])
app.controller('SimpleController', function($scope) {
$scope.cpu = [{
house: 'Intel',
model: 'I7'
},
{
house: 'AMD',
model: 'Ryzen'
},
{
house: 'Qualcomm',
model: 'Snapdragon'
}
];
});
</script>
<title>Search and print with Scope</title>
</head>
<body ng-app="demoApp">
<div ng-controller="SimpleController">
<input type="search" ng-model="q" placeholder="CPU" />
<ul>
<li>hi</li>
<li ng-repeat="proc in cpu">
{{proc.house}} - {{proc.model}}
</li>
<li>hi again</li>
</ul>
</div>
</body>
</html>
&#13;
答案 0 :(得分:3)
你需要有一个角度模块和ng-app,如下所述
<强> DEMO
强>
var app = angular.module('myApp',[])
app.controller('Controller',function($scope){
$scope.cpu = [
{ house: 'Intel', model: 'I7' },
{ house: 'AMD', model: 'Ryzen' },
{ house: 'Qualcomm', modello: 'Snapdragon' }
];
});
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<html ng-app="myApp">
<head>
<title>Search and print with Scope</title>
</head>
<body>
<div ng-controller="Controller">
<input type="search" ng-model="q" placeholder="CPU" />
<ul>
<li ng-repeat="proc in cpu | filter:q">
{{proc.house}} - {{proc.model}}
</li>
</ul>
</div>
</body>
</html>
&#13;
答案 1 :(得分:2)
首先,您在尝试获取范围数据之前,需要在使用ng-repeat
之前加载脚本,因此请在div定义之前移动script
。
您还没有正确定义Controller,它应该在app
模块中定义,然后绑定HTML中的ng-app
和Controller
。
<!DOCTYPE html>
<html ng-app="">
<head>
<title>Search and print with Scope</title>
<script src="angular.min.js"></script>
<script>
var app = angular.module('angularApp',[])
app.controller('Controller',function($scope){
$scope.cpu = [
{ house: 'Intel', model: 'I7' },
{ house: 'AMD', model: 'Ryzen' },
{ house: 'Qualcomm', modello: 'Snapdragon' }
];
});
</script>
</head>
<body ng-app="angularApp">
<div ng-controller="Controller">
<input type="search" ng-model="q" placeholder="CPU" />
<ul>
<li ng-repeat="proc in cpu | filter:q">
{{proc.house}} - {{proc.model}}
</li>
</ul>
</div>
</body>
</html>