JavaScrip如果基于url实现图片下载

1.H5 download属性 function downFile(content, filename) { // 创建隐藏的可下载链接 var eleLink = document.createElement('a'); eleLink.download = filename; eleLink.style.display = 'none'; // 字符内容转变成blob地址 var blob = new Blob([content]); eleLink.href = URL.createObjectURL(blob); // 触发点击 d