js 通过图片链接下载到本地
1 let image = new Image(); 2 image.setAttribute("crossOrigin", "anonymous"); 3 image.src = url; 4 image.onload = () => { 5 let canvas = document.createElement("canvas"); 6 canvas.width = image.width; 7 canvas.height = image.height; 8 let ctx = canvas.getContext("2d"); 9 ctx.drawImage(image, 0, 0, image.width, image.height); 10 canvas.toBlob((blob) => { 11 let url = URL.createObjectURL(blob); 12 let Link = document.createElement("a"); 13 Link.download = "下载名字"; 14 Link.href = url; 15 Link.click(); 16 Link.remove(); 17 // 用完释放URL对象 18 URL.revokeObjectURL(url); 19 }); 20 }
* url 为图片地址 如：https://t7.baidu.com/it/u=816042678,3339142019&fm=193&f.gif
