通过ifrmae异步下载文档

//通过ifrmae异步下载文档
function iframeGetFile(opts) {var defaultOpts = {filePath: '',onload: function (e) { }}, iframeFile;$.extend(defaultOpts, opts);iframeFile = document.createElement("iframe");iframeFile.onload = function (e) {defaultOpts.onload.call(this, e);$(iframeFile).remove();}iframeFile.src = defaultOpts.filePath;iframeFile.style.cssText = "display:none;";document.body.appendChild(iframeFile);
},

调用:

$.iframeGetFile({ filePath: requestUrl + "?" + strOptions });