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並前往https://developers.weixin.qq.com/miniprogram/dev/api/canvas/CanvasContext.drawImage.html

CanvasContext.drawImage(string imageResource, number sx ...

drawImage (imageResource, sx, sy, sWidth, sHeight, dx, dy, dWidth, dHeight) 从1.9.0 起支持. const ctx = wx.createCanvasContext('myCanvas') wx ...

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