return false;
}
function downloadIamge(selector, name) {
var image = new Image();
// 解决跨域 Canvas 污染问题
image.setAttribute('crossOrigin', 'anonymous');
image.onload = function () {
var canvas = document.createElement('canvas');
canvas.width = image.width;
canvas.height = image.height;
var context = canvas.getContext('2d');
context.drawImage(image, 0, 0, image.width, image.height);
var url = canvas.toDataURL('image/png');
// 生成一个a元素
var a = document.createElement('a');
// 创建一个单击事件
var event = new MouseEvent('click');
// 将a的download属性设置为我们想要下载的图片名称，若name不存在则使用‘下载图片名称’作为默认名称
a.download = name || 'keaitupian';
// 将生成的URL设置为a.href属性
a.href = url;
// 触发a的单击事件
a.dispatchEvent(event)
};
image.src = 'http://up.keaitupian.com/b1/2e/46/b12e463ed3a40e3c89df6e8b75c72268.jpg';
}
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