JavaScript禁止右击保存图片,禁止拖拽图片的实现代码

<img src="" oncontextmenu="return false;">

<img src="" ondragstart="return false;">

<p onselectstart="return false;">文字禁止鼠标选中</p>

<p onselect="document.selection.empty();">文字禁止鼠标选中</p>

$(document).bind("contextmenu copy selectstart", function() {
   return false;
});

var img=$("img");
img.on("contextmenu",function(){return false;});
img.on("dragstart",function(){return false;});

/保存到相册
function savepic(){     
  var picurl= $("#picurl").attr("src");
  //alert(picurl);
  savepicture(picurl);
}

var triggerevent = "touchstart";
function savepicture(url){
  var blob=new blob([''], {type:'application/octet-stream'});
  var url = url.createobjecturl(blob);
  var a = document.createelement('a');
  a.href = url;
  a.download = url.replace(/(.*\/)*([^.]+.*)/ig,"$2").split("?")[0];
  var e = document.createevent('mouseevents');
  e.initmouseevent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
  a.dispatchevent(e);
  url.revokeobjecturl(url);
}