画布2图像 将画布保存或转换为图像的工具 演示版 代码 你可以像这样使用它 Canvas2Image.saveAsImage(canvasObj, width, height, type) Canvas2Image.saveAsPNG(canvasObj, width, height) Canvas2Image.saveAsJPEG(canvasObj, width, height) Canvas2Image.saveAsGIF(canvasObj, width, height) Canvas2Image.saveAsBMP(canvasObj, width, height) Canvas2I