极客教程如何使用AngularJS改变图像源URL
这里的任务是在AngularJS的帮助下改变图片的源URL。
方法：方法是在用户点击按钮时改变图片的URL。当用户点击按钮时，一个方法和新的URL一起被调用，该方法将新的URL替换成控制器中的旧URL。
示例 1:
<!DOCTYPE HTML>
<html>
<head>
<script src=
"//ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js">
</script>
<script>
var myApp = angular.module("app", []);
myApp.controller("controller", function (scope) {
scope.imgUrl =
"https://media.geeksforgeeks.org/wp-content/uploads/20190515121004/gfgbg1-300x136.png";
scope.changeURL = function (url) {
scope.imgUrl = url;
};
});
</script>
</head>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksForGeeks
</h1>
<p>
How to Change Image Src URL in AngularJS
</p>
<div ng-app="app">
<div ng-controller="controller">
<button ng-click="changeURL(
'https://media.geeksforgeeks.org/wp-content/uploads/20190515120525/gfglogo1.png')">
Change Image</button>
<br>
<br>
<img src="{{imgUrl}}">
</div>
</div>
</body>
</html>
输出:
例子2：在这个例子中，可以看到输出中的URL变化。
<!DOCTYPE HTML>
<html>
<head>
<script src=
"//ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js">
</script>
<script>
var myApp = angular.module("app", []);
myApp.controller("controller", function (scope) {
scope.imgUrl =
"https://media.geeksforgeeks.org/wp-content/uploads/20190529122828/bs21.png";
scope.changeURL = function (url) {
scope.imgUrl = url;
};
});
</script>
</head>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksForGeeks
</h1>
<p>
How to Change Image Src URL in AngularJS
</p>
<div ng-app="app">
<div ng-controller="controller">
<button ng-click="changeURL(
'https://media.geeksforgeeks.org/wp-content/uploads/20190529122826/bs11.png')">
Change Image</button>
<br>
<br>
URL - {{imgUrl}}
<img src="{{imgUrl}}">
</div>
</div>
</body>
</html>
输出:
