this.qrcodeShare=true
this.$nextTick(()=>{ 
    let qrCodeContainer = document.getElementById(‘qrcode‘);         
    qrCodeContainer.innerHTML = ‘‘; 
    let qrcode = new QRCode(qrCodeContainer, { 
      width: 200,//设置宽高 
      height: 200 }); 

qrcode.makeCode(‘url?aa=‘+this.aa+‘&bb=‘+this.bb); 

例如："url/:aa/:bb/:cc"
页面url为 http://XXX.com/ms/11/22/33