项目地址：https://github.com/zenorocha/clipboard.js
代码示例为其demo示例
注：示例中的clipboard.min.js为https://github.com/zenorocha/clipboard.js/tree/master/src的clipboard.js
1.复制节点值，下面示例事先对列表中的data-clipboard-text赋值，点击元素就会复制其属性值
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>constructor-nodelist</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<button data-clipboard-text="1">Copy</button>
<button data-clipboard-text="2">Copy</button>
<button data-clipboard-text="3">Copy</button>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard by passing a list of HTML elements -->
<script>
var btns = document.querySelectorAll('button');
var clipboard = new Clipboard(btns);
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>constructor-selector</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<button class="btn" data-clipboard-text="1">Copy</button>
<button class="btn" data-clipboard-text="2">Copy</button>
<button class="btn" data-clipboard-text="3">Copy</button>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard by passing a string selector -->
<script>
var clipboard = new Clipboard('.btn');
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html>
2.复制指定元素，下面事例对指定的标签元素进行复制
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>function-target</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<button class="btn">Copy</button>
<div>hello</div>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard -->
<script>
var clipboard = new Clipboard('.btn', {
target: function() {
return document.querySelector('div');
}
});
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html>
以及这种方式，指定了要复制的是一个div标签的元素
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>target-div</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<div>hello</div>
<button class="btn" data-clipboard-action="copy" data-clipboard-target="div">Copy</button>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard -->
<script>
var clipboard = new Clipboard('.btn');
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html>
3.动态复制值，下面示例在初始化clipboard对象时，通过text对所要复制的内容进行复制
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>function-text</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<button class="btn">Copy</button>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard -->
<script>
var clipboard = new Clipboard('.btn', {
text: function() {
return 'to be or not to be';
}
});
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html>
4.对指定输入框或文本域的内容进行复制
输入框：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>target-input</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<input id="foo" type="text" value="hello">
<button class="btn" data-clipboard-action="copy" data-clipboard-target="#foo">Copy</button>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard -->
<script>
var clipboard = new Clipboard('.btn');
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>target-textarea</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<!-- 1. Define some markup -->
<textarea id="bar">hello</textarea>
<button class="btn" data-clipboard-action="cut" data-clipboard-target="#bar">Cut</button>
<!-- 2. Include library -->
<script src="../dist/clipboard.min.js"></script>
<!-- 3. Instantiate clipboard -->
<script>
var clipboard = new Clipboard('.btn');
clipboard.on('success', function(e) {
console.log(e);
});
clipboard.on('error', function(e) {
console.log(e);
});
</script>
</body>
</html>