备忘录只文件下载功能

down_file:function(files){
var DownFile = is_ie ? downloadFile : IEdownloadFile;

            // 判断类型，处理下载文件名            if(files instanceof Array) {                for(var i = 0, l = files.length; i < l ; i++)                    // bug 处理                    DownFile(parseURL(files[i]), files[i], true);            } else if(typeof files === "string") {                DownFile(parseURL(files), files);            } else {                // 对象                for(var file in files) DownFile(file, files[file]);            }    },

(function ($){
var is_ie = !/Trident|MSIE/.test(navigator.userAgent);
function parseURL(str){
return str.lastIndexOf(“/”) > -1 ? str.slice(str.lastIndexOf(“/”) + 1) : str;
};
function downloadFile(fileName, contentOrPath){
var aLink = document.createElement(“a”),
evt = document.createEvent(“HTMLEvents”),
isData = contentOrPath.slice(0, 10) ==”“,
isPath = contentOrPath.lastIndexOf(“.”) > -1;
evt.initEvent(“click”);
aLink.download = fileName;
aLink.href = isPath || isData ? contentOrPath:URL.createObjectURL(new Blob([contentOrPath]));
aLink.dispatchEvent(evt);
};
function IEdownloadFile(fileName, contentOrPath, bool){
var isData = contentOrPath.slice(0, 30) ==”_mainList”,
ifr = document.createElement(‘iframe’);
ifr.style.display = ‘none’;
ifr.src = contentOrPath;
document.body.appendChild(ifr);
isData && ifr.contentWindow.document.write(“”);
if(bool){
ifr.contentWindow.document.execCommand(‘SaveAs’, false, fileName);
document.body.removeChild(ifr);
} else {
setTimeout(function(){
ifr.contentWindow.document.execCommand(‘SaveAs’, false, fileName);
document.body.removeChild(ifr);
}, 0);
}
};
）；