<button id="btn"></button>
    <div id="iframeDecl">
      <iframe src="" name="iframeHtml" id="iframeHtml"></iframe> 
    </div>
js:
$(function(){
         $("-sharpbtn").click(function(){
           $("-sharpiframeHtml").attr("src","https://baidu.cn"); 
           $("-sharpiframeHtml").width($(window).width());
           $("-sharpiframeHtml").height($(window).height());
           var iframeDocument = $("-sharpiframeHtml")[0].contentDocument;
            $(iframeDocument ).ready(function(){
                alert("111");
                console.log($(this).find("-sharpbanner"))
                $(this).find("-sharpbanner").click(function(){
                    alert("....");
                });
            })
         })
       });
I want to implement a function, click the button on the local page, then introduce an external page through iframe, and then bind events to the dom elements in the external page.
