JavaScript实现复制文章自动添加版权

第一种

注意：这段代码必须复制到 body 区域里面才能生效，放到 head 区域内是不起作用的。

第二种

$("body").bind('copy', function (e) {
 if (typeof window.getSelection == "undefined") return; //IE8 or earlier...
 
 var body_element = document.getElementsByTagName('body')[0];
 var selection = window.getSelection();
 
 //if the selection is short let's not annoy our users
 if (("" + selection).length < 30) return;

 //create a div outside of the visible area
 //and fill it with the selected text
 var newdiv = document.createElement('div');
 newdiv.style.position = 'absolute';
 newdiv.style.left = '-99999px';
 body_element.appendChild(newdiv);
 newdiv.appendChild(selection.getRangeAt(0).cloneContents());
 
 //we need a 
 tag workaround
 //otherwise the text inside "pre" loses all the line breaks!
 if (selection.getRangeAt(0).commonAncestorContainer.nodeName == "PRE") {
 newdiv.innerHTML = "
" + newdiv.innerHTML + "
";
 }
 
 newdiv.innerHTML += "

Read more at: "
 + document.location.href + " © MySite.com";
  
 selection.selectAllChildren(newdiv);
 window.setTimeout(function () { body_element.removeChild(newdiv); }, 200);
});

总结
以上就是小编为大家整理的两种利用Javascript实现复制文章自动添加版权的方法，代码很简单，有需要的朋友们可以参考学习。