WeChat applet drawImage understanding

This article mainly shares with you the understanding of WeChat applet drawImage, hoping to help everyone

1.drawImage parameters

2. Use cases

1. When uploading pictures: chooseImage is the interface for calling the camera and mobile phone album

2. Draw the specified picture (the picture is directly in the images folder of the mini program)

		const ctx = wx.createCanvasContext('myCanvas');
		ctx.drawImage('../uploads/foods.jpg', 0, 0, 150, 100);
		ctx.draw();

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