Js: Copy articles, add copyright at random, code at any location

Now many webmasters want others to copy their own website articles to bring a link, but this is just an idealized process where almost everyone will delete the source, the copyright information is automatically added to the end of the article. Below I want to organize a lot of examples randomly added to the copyright in the article.

Example 1:

After adding the file, you only need to copy the content of the page and add a url of the current file at random. However, unfortunately, many webmasters directly Delete the subsequent file with the copyright.

The Code is as follows:	Copy code
Document. body. oncopy = function (){ SetTimeout (function () { Var text = clipboardData. getData ("text "); If (text ){ For more details about text = text + "rn, see:" + location. href; ClipboardData. setData ("text", text ); } }, 100) }

Example 2,After the code above is improved, we add a url in an indefinite location based on the content length. This method has a slight effect.

The Code is as follows:

Copy code

Function left (mainStr, lngLen ){ If (lngLen> 0) {return mainStr. substring (0, lngLen )} Else {return null} } Function right (mainStr, lngLen ){ If (mainStr. length-lngLen> = 0 & mainStr. length> = 0 & mainStr. length-lngLen <= mainStr. length ){ Return mainStr. substring (mainStr. length-lngLen, mainStr. length )} Else {return null} } Document. body. oncopy = function () { SetTimeout (function (){ Var d = clipboardData. getData ("text "); Var LenStr = d. length; Var LeftNum = Math. floor (LenStr/2 ); Var RightNum = LenStr-LeftNum; Var AddStr = "(www. bKjia. c0m )"; Var AddStr2 = "rn for more details, see:" + location. href; If (LenStr> 50) {NewContent = left (d, LeftNum) + AddStr + right (d, RightNum) + AddStr2 ;} Else {NewContent = d ;} ClipboardData. setData ("Text", NewContent ); }, 100) }