onAfterClick:function (cmd) { if ("weixin" == cmd){ setTimeout(function(){ let url = location.href; //把原来的二维码去掉 document.getElementById("bdshare_weixin_qrcode_dialog_qr").innerText=""; let QRCode = require("qrcodejs2"); let qrcode = new QRCode(document.getElementById("bdshare_weixin_qrcode_dialog_qr"), { width: 210, height: 196 }); qrcode.makeCode(url); // make another code. },500) } }