uni-app H5下载到本地照片

function saveImg(url){
var oA = document.createElement(“a”);
oA.download = ‘’;// 设置下载的文件名，默认是’下载’
oA.href = url;
document.body.appendChild(oA);
oA.click();
oA.remove(); // 下载之后把创建的元素删除
}
转载：https://blog.youkuaiyun.com/AIB_Kasic/article/details/102893602