Jquery 实现table标题点击复制整列td内容到剪贴板

<!DOCTYPE html>
<html>
     <head>
          <meta charset="utf-8">
          <title></title>
          <style>
              *{margin:20px;padding:20px;}
          </style>
     </head>
     <body>
    <table>
    <tr>
                <th id="Copy" title="点击A可以复制整个列">A</th>
                <th>B</th>
                <th>C</th>
                <th>D</th>
                <th>E</th>
        </tr>
        <tr>
                <td class="shuzi">aaaaaaaaaaaaaa</td>
                <td>2</td>
                <td>3</td>
                <td>4</td>
                <td>5</td>
        </tr>
        <tr>
                <td class="shuzi">bbbbbbbbbbbbb</td>
                <td>2</td>
                <td>3</td>
                <td>4</td>
                <td>5</td>
        </tr>
        <tr>
                <td class="shuzi">ccccccccccc</td>
                <td>2</td>
                <td>3</td>
                <td>4</td>
                <td>5</td>
        </tr>
        <tr>
                <td class="shuzi">dddd</td>
                <td>2</td>
                <td>3</td>
                <td>4</td>
                <td>5</td>
        </tr>
    </table>
</body>
<script src="jquery.min.js"></script>
<script type="text/javascript">
$("#Copy").click(function(){
    var arr=$(".shuzi");
    var values=new Array();
    for(var i=0;i<arr.length;i++){
    var td=arr[i].innerHTML;
    values[i]=td;
    }

    var j='';
    for(var i=0;i<values.length;i++){
        var j=j+values[i]+"
";        
    } 
   var flag = copyText(j); //传递文本
   alert(flag ? "复制成功!" : "复制失败!");
})
 
    function copyText(text) {
        var textarea = document.createElement("textarea");//创建input对象
        var currentFocus = document.activeElement;//当前获得焦点的元素
        document.body.appendChild(textarea);//添加元素
        textarea.value = text;
        textarea.focus();
        if(textarea.setSelectionRange)
            textarea.setSelectionRange(0, textarea.value.length);//获取光标起始位置到结束位置
        else
            textarea.select();
        try {
            var flag = document.execCommand("copy");//执行复制
        } catch(eo) {
            var flag = false;
        }
        document.body.removeChild(textarea);//删除元素
        currentFocus.focus();
        return flag;
    }
</script>
</html>
原文地址:https://www.cnblogs.com/qxh-beijing2016/p/11936959.html