如何将ajax文件上传.txt改写为长尾关键词？

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javascriptfunction uploadFile(url, fileInputId, param, callBack) { $.ajaxFileUpload({ url: url, secureuri: false, fileElementId: fileInputId, dataType: json, type: post, data: param, success: function(data) { callBack(data); } });}

function upload(url, fileinputId, param, callBack) { $.ajaxFileUpload({ url: url, secureuri: false, fileElementId: fileinputId, dataType: "json", type: "post", data: param, success: function (data) { callBack(data); } }); }