<!--部分html代码-->
<qrcode :url="qrcodeUrl"
 :iconurl="iconurl"
 :wid="298"
 :hei="278"
 :imgwid="100"
 :imghei="100">
</qrcode>

// 部分js代码
import qrcode from 'vue_qrcodes'
//...省略其他代码
components: {
 qrcode
 }

.logoimg {
 height: 100px !important;
 width: 100px !important;
 margin-top: -50px !important;
 margin-left: -50px !important;
 }
#qrcode {
 margin-top: 20px;
 img {
 height: 278px !important;
 width: 298px !important;
 }
 }

htmlToCanvas() {
 html2canvas(this.$refs.bill, {})
 .then((canvas) => {
 let imageUrl = canvas.toDataURL('image/png'); // 将canvas转成base64图片格式
 this.canvasImageUrl = imageUrl;
 this.isDom = false;
 });
}
// 二维码地址
this.qrcodeUrl = data.data.inviteCodeAddress
// 调用html转化canvas函数
this.htmlToCanvas();

// 二维码地址
this.qrcodeUrl = data.data.inviteCodeAddress 
this.$nextTick(() => {
 // 跳用html转化canvas函数
 this.htmlToCanvas(); 
 })

// 二维码地址
this.qrcodeUrl = data.data.inviteCodeAddress 
setTimeout(()=>{
 // 调用html转化canvas函数
 this.htmlToCanvas(); 
}, 200)

htmlToCanvas() {
 html2canvas(this.$refs.bill, {
 useCORS: true // 解决图片跨域问题
 }).then((canvas) => {
 // 将canvas转成base64图片格式
 let imageUrl = canvas.toDataURL('image/png'); 
 this.canvasImageUrl = imageUrl;
 this.isDom = false;
 }).catch((e) => console.log(e));
 }