我看文档里是这么写的啊
https://developers.weixin.qq.com/s/aS3Z2kmB7dsp
相关文档
- CanvasContext.drawImage: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- CanvasContext.drawImage#参数: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- CanvasContext.drawImage#功能描述: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- CanvasContext.drawImage#示例代码: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- JavaScript 支持情况: 小程序/开发/指南/小程序运行时/JavaScript 支持情况
改用非离屏画布吧