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Prohibit copying content in web pages

2022-04-22 17:13:00 【When there's not enough time】

<body>
	 Used to test whether the page content can be copied 
</body>

Method 1

add to JavaScript function , Disable right clicking and Ctrl+C

<script type="text/javascript">
	document.oncontextmenu = function(){
    
		return false
	}
	document.onkeydown=function(ev){
    
		var ev=window.event||ev;
	    if((ev.ctrlKey) && (ev.keyCode==67)){
    
	          ev.returnValue=false;
	    }
	}
</script>

Method 2

stay body Add oncontextmenu and onselectstart attribute , Or in script Add a function to the tag to set its properties

<body oncontextmenu="event.returnValue=false" onselectstart="event.returnValue=false">
</body>
 or 
<body oncontextmenu="return false" onselectstart="return false">
</body>
 or 
<script language="Javascript"> document.oncontextmenu=new Function("event.returnValue=false"); document.onselectstart=new Function("event.returnValue=false"); </script>

Method 3

Disable right click menu 、 Copy 、 choice , Use jquery The way

<script type="text/javascript">
	$(document).bind("contextmenu copy selectstart", function() {
    
	  return false;
	});
</script>

Method four

css Methods

body {
    
  -moz-user-select:none; /* Firefox Private property  */
  -webkit-user-select:none; /* WebKit Kernel private properties  */
  -ms-user-select:none; /* IE Private property (IE10 And later ) */
  -khtml-user-select:none; /* KHTML Kernel private properties  */
  -o-user-select:none; /* Opera Private property  */
  user-select:none; /* CSS3 attribute  */
}

The point is that

topmargin="0" 
οncοntextmenu="return false" 
οndragstart="return false" 
onselectstart ="return false" 
οnselect="document.selection.empty()" 
οncοpy="document.selection.empty()" 
onbeforecopy="return false" 
οnmοuseup="document.selection.empty()"

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