cnpm i -S qrcodejs2

<template>
  <span ref="qrCodeUrl"></span>
</template>
<script>
import QRCode from "qrcodejs2";
export default {
  data() {
    return {};
  },
  mounted() {
    this.creatQrCode();
  },
  methods: {
    creatQrCode() {
      let a = new QRCode(this.$refs.qrCodeUrl, {
        text: "hello 大家好", // 需要转换为二维码的内容
        width: 100,
        height: 100,
        colorDark: "black", //#000000为黑色
        colorLight: "white",
      });
      console.log("二维码:", a);
    },
  },
};
</script>

cnpm i -S vue-qr

<template>
  <vue-qr
    :logoSrc="imageUrl"
    text="https://blog.csdn.net/qq_40323256/"
    :size="150"
    :margin="0"
    colorDark="black"
    colorLight="white"
  ></vue-qr>
</template>
<script>
import vueQr from "vue-qr";
export default {
  components: {
    vueQr,
  },
  data() {
    return {
      imageUrl: require("@/assets/logo.png"), //欲嵌入至二维码中心的 LOGO 地址
    };
  },
};
</script>