防止代码复制

2022-07-15 80酷酷网 80kuku.com

//插入 document.body.oncopy event事件中
//或者 <body>的"oncopy"属性
function copyCode()
{
try
{
 var range = document.selection.createRange();
 if (document.selection.type != "none")
 {
 var parent = range.parentElement();
 var parentName = parent.tagName;
 if (parentName != null)
 {
 if (parentName.toLowerCase() == "pre")
 {
 // Replace superfluous
tags in a <pre> block.
 var re = /
/gi;
 var code = range.htmlText.replace(re, "\r\n");

     // Replace non-breaking spaces.
     re = / /gi;
     code = code.replace(re, " ");

     // Replace & characters.
     re = /&/gi;
     code = code.replace(re, "&");

// Replace < characters.
 re = /</gi;
 code = code.replace(re, "<");

// Replace > characters.
 re = />/gi;
 code = code.replace(re, ">");

 // CJM: Remove colorization
 re = /<\/?span([^>])*>/gi;
 code = code.replace(re, "");

     if (code != null)
     {
      window.event.returnValue = false;
      window.clipboardData.setData("Text", code);
     }
    }
   }
  }
}
catch(e) {}
}

<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="feiyun">
<META NAME="Keywords" CONTENT="nocopy">
<META NAME="Description" CONTENT="no copy">
</HEAD>
<BODY oncopy="return copyCode();" >
防代码复制，不信你试试（只防止代码复制，其他可以复制）

<TABLE>
<TR>
<TD>aa</TD>
<TD>bb</TD>
<TD>cc</TD>
</TR>
<TR>
<TD>dd</TD>
<TD>ee</TD>
<TD>ff</TD>
</TR>
</TABLE>

</BODY>
</HTML>