npm install vue-qr --save
import VueQr from "vue-qr";
components: {
VueQr,
},
<vue-qr
ref="Qrcode"
:text="qrText"
:margin="10"
:size="200"
>
</vue-qr>
// 下载
downloadImgQr() {
const iconUrl = this.$refs.Qrcode.$el.src;
let a = document.createElement("a");
let event = new MouseEvent("click");
a.download = "二维码";
a.href = iconUrl;
a.dispatchEvent(event);
},
