Javascript AngularJS按钮ng单击不工作
index.htmlJavascript AngularJS按钮ng单击不工作,javascript,html,angularjs,Javascript,Html,Angularjs,index.html <!DOCTYPE html> <html ng-app="todoApp"> <head> <title>To Do List</title> <link href="skeleton.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.7/angular.
<!DOCTYPE html>
<html ng-app="todoApp">
<head>
<title>To Do List</title>
<link href="skeleton.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.7/angular.min.js"></script>
<script src="app.js"></script>
</head>
<body ng-controller="todoController">
<div class="section hero">
<div class="container">
<div class="row">
<div class="three columns">
<li>
<button class="button button-primary" ng-click="btnClick(first)">Data 1</button>
</li>
</div>
<div class="nine columns">
<h4>{{dataText}}</h4>
</div>
</div>
</div>
</div>
</body>
</html>
当我单击按钮时,我希望ng click启动并调用控制器中的函数,但当我单击nothing时,屏幕上的文本不会改变或发生任何变化。我做错了什么?html中没有名为first的变量
<li>
<button class="button button-primary" ng-click="btnClick(first)">Data 1</button>
</li>
这是工作流程什么是“第一”参考?ng click=“btnClick(first)”哦,我想让它传递一个类似“first”的字符串在这种情况下使用ng click=“btnClick('first')”我只是将其更改为该字符串,但由于某种原因它仍然不起作用。
<li>
<button class="button button-primary" ng-click="btnClick(first)">Data 1</button>
</li>
<li>
<button class="button button-primary" ng-click="btnClick('first')>Data 1</button>
</li>
$scope.btnClick = function (num){
$scope.dataText = "This is data from the " + num + " button."
};