wx.canvasToTempFilePath报错？
"canvasToTempFilePath:fail Failed to execute 'drawImage' on 'CanvasRenderingContext2D': The provided value is not of type '(CSSImageValue or HTMLImageElement or SVGImageElement or HTMLVideoElement or HTMLCanvasElement or ImageBitmap or OffscreenCanvas or VideoFrame)'" 提供的值不是类型”（CSSImageValue或HTMLImageElement或SVGImageElement或HTMLVideoElement或HTMLCanvasElement或ImageBitmap或OffsetCanvas或VideoFrame）
