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+export const downloadImage = (imgsrc, name) => { //下载图片地址和图片名
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+ var image = new Image();
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+ image.setAttribute("crossOrigin", "anonymous");
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+ image.onload = function() {
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+ var canvas = document.createElement("canvas");
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+ canvas.width = image.width;
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+ canvas.height = image.height;
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+ var context = canvas.getContext("2d");
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+ context.drawImage(image, 0, 0, image.width, image.height);
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+ var url = canvas.toDataURL("image/png"); //得到图片的base64编码数据
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+
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+ var a = document.createElement("a"); // 生成一个a元素
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+ var event = new MouseEvent("click"); // 创建一个单击事件
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+ a.download = name || "photo"; // 设置图片名称
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+ a.href = url; // 将生成的URL设置为a.href属性
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+ a.dispatchEvent(event); // 触发a的单击事件
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+ };
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+ image.src = imgsrc;
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+}
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