用Vue框架将base64格式的图片画到canvas上

<template>
    <div><canvas id="myCanvas" width="800" height="800"></canvas></div>
</template>
<script>
//导入 axios 用于获取接口数据用的
import axios from "axios";
export default {
  data() {
    return {
    };
  },
  methods: {
  },
  created() {
    axios({
        //写接口路径用
      url: "",
        //请求方式
      method: "",
        //用于传参
      params: {
      },
    })
      .then((res) => {
        //接口拿来的数据用变量 imgbase64=接口数据
        var imgbase64 = res.data;
        let img = new Image();
        img.src = imgbase64;
        let myCanvas = document.getElementById("myCanvas").getContext("2d");
        img.onload = () => {
          myCanvas.drawImage(img, 90, 250, 180, 240);
          myCanvas.font = "25px Arial";
          myCanvas.fillText("邀请码", 140, 190, 100, 0);
        };
      })
      .catch((err) => {
        console.log(err);
      });
  },
};
</script>