就是这样写的[图片]，开发者工具上面打印出来是[图片]，在手机上面就是object对象，无法创建成功

[图片] wx.showToast({ title: '图片生成中...', icon: 'none' }) const query = wx.createSelectorQuery() query.select('#letter_prize') .fields({ node: true, size: true }) .exec(async (res) => { const canvas = res[0].node const ctx = canvas.getContext('2d') const dpr = wx.getSystemInfoSync().pixelRatio canvas.width = res[0].width * dpr canvas.height = res[0].height * dpr ctx.scale(dpr, dpr) // 绘制 ctx.save() ctx.fillStyle = '#fff' ctx.fillRect(0, 0, 540, 770) ctx.restore() // 获取网络图片本地路径 const letterBg = await this.getImageLocalInfo(`${config.ossStatic}letter_empty_background.png`) const goodsImage = await this.getImageLocalInfo(this.data.letterDetail.image || 'https://emk-shop-item.oss-cn-hangzhou.aliyuncs.com/warehouse/item/7326e5b4dc07446adb163baf5dfb5928') // 奖品图 const bgImage = ctx.createImageData(540, 320) //创建image bgImage.src = letterBg //指定路径为getImageInfo的文件 bgImage.onload = (e) => { console.log(e) ctx.save() ctx.drawImage(bgImage, 0, 0, 540, 320) //图片加载完成时draw ctx.restore() }