解决qrcode动态生成二维码时多次点击生成多个二维码的问题

<div id="qrcode" ref="qrCodeUrl"></div>

creatQrCode(userId) {
	  // 即生成二维码之前先将存放二维码的标签清空
      document.getElementById("qrcode").innerHTML = "";
      let QueryDetail = 'https://xxxxxxx.com'   '/manager/Scrap_bindWxPage'   "?userId="   userId;
      console.log(QueryDetail, "QueryDetail")
      var qrcode = new QRCode(this.$refs.qrCodeUrl, {
        text: QueryDetail,
        width: 200,
        height: 200,
        colorDark: '#000000',
        colorLight: '#ffffff',
        correctLevel: QRCode.CorrectLevel.H
      })
    },

setTimeout( () => {
    this.creatQrCode(userId)
}, 0)

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