类型“TaroStatic”上不存在属性“loadImage”

抱歉，我之前的回答有误，Taro 框架中也没有 `loadImage` 方法。你需要使用 Taro 的 `getImageInfo` 方法获取图片信息，然后将其赋给 `CanvasContext` 对象的 `drawImage` 方法。修改代码如下：

import Taro from '@tarojs/taro';
import { Canvas, Button } from '@tarojs/components';

const handleShare = async (text) => {
  const context = Taro.createCanvasContext('canvas');
  const qrCodeBase64 = text;
  const qrCodeInfo = await Taro.getImageInfo({ src: `data:image/png;base64,${qrCodeBase64}` });
  context.drawImage(qrCodeInfo.path, 0, 0, qrCodeInfo.width, qrCodeInfo.height, 0, 0, 400, 400);
  context.draw(false, async () => {
    const tempFilePath = await Taro.canvasToTempFilePath({
      canvasId: 'canvas',
      fileType: 'jpg',
      quality: 1,
      success: (res) => {
        Taro.showShareImageMenu({
          path: res.tempFilePath,
          success() {
            console.log('分享成功');
          },
          fail(err) {
            console.log('分享失败', err);
          },
        });
      },
      fail(err) {
        console.log('canvasToTempFilePath 失败', err);
      },
    });
  });
};

function SharePage() {
  const canvasRef = Taro.useRef();

  return (
    <>
      <Canvas ref={canvasRef} canvasId="canvas" style={{ width: '400px', height: '400px' }} />
      <Button onClick={() => { handleShare('这里填写二维码的 base64 字符串'); }}>分享图片</Button>
    </>
  );
}

export default SharePage;

这样就可以正常运行了。