layui js 上传excel和word文件 怎样修改才能上传到服务器中

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原谅我不会写
悬赏:20飞吻
版本:layui 浏览器:
在upload.js中增加 xlsx、xls、doc还是提示文件格式不支持

/** layui-v1.0.9_rls MIT License By http://www.layui.com */
;layui.define("layer", function (e) {
"use strict";
var a = layui.jquery, t = layui.layer, i = (layui.device(), "layui-upload-enter"), n = "layui-upload-iframe",
r = {icon: 2, shift: 6}, o = {file: "文件", video: "视频", audio: "音频"}, s = function (e) {
this.options = e
};
s.prototype.init = function () {
var e = this, t = e.options, r = 0 || r.append(u), s.each(function (r, s) {
s = a(s);
var u = '<form target="' + n + '" method="' + (t.method || "post") + '" key="set-mine" enctype="multipart/form-data" action="' + (t.url || "") + '"></form>',
l = s.attr("lay-type") || t.type;
t.unwrap || (u = '<div class="layui-box layui-upload-button">' + u + '<span class="layui-upload-icon"><i class="layui-icon"></i>' + (s.attr("lay-title") || t.title || "上传" + (o[l] || "图片")) + "</span></div>"), u = a(u), t.unwrap || u.on("dragover", function (e) {
e.preventDefault(), a(this).addClass(i)
}).on("dragleave", function () {
a(this).removeClass(i)
}).on("drop", function () {
a(this).removeClass(i)
}), s.parent("form").attr("target") === n && (t.unwrap ? s.unwrap() : (s.parent().next().remove(), s.unwrap().unwrap())), s.wrap(u), s.off("change").on("change", function () {
e.action(this, l)
})
})
}, s.prototype.action = function (e, i) {
var o = this, s = o.options, u = e.value, l = a(e), p = l.attr("lay-ext") || s.ext || "";
if (u) {
switch (i) {
case"file":
if (p && !RegExp("\\w\\.(" + p + ")$", "i").test(escape(u))) return t.msg("不支持该文件格式", r), e.value = "";
break;
case"video":
if (!RegExp("\\w\\.(" + (p || "avi|mp4|wma|rmvb|rm|flash|3gp|flv") + ")$", "i").test(escape(u))) return t.msg("不支持该视频格式", r), e.value = "";
break;
case"audio":
if (!RegExp("\\w\\.(" + (p || "mp3|wav|mid") + ")$", "i").test(escape(u))) return t.msg("不支持该音频格式", r), e.value = "";
break;
default:
if (!RegExp("\\w\\.(" + (p || "jpg|png|gif|bmp|jpeg") + ")$", "i").test(escape(u))) return t.msg("不支持该图片格式", r), e.value = ""
}
s.before && s.before(e), l.parent().submit();
var c = a("#" + n), f = setInterval(function () {
var a;
try {
a = c.contents().find("body").text()
} catch (i) {
t.msg("上传接口存在跨域", r), clearInterval(f)
}
if (a) {
clearInterval(f), c.contents().find("body").html("");
try {
a = JSON.parse(a)
} catch (i) {
return a = {}, t.msg("请对上传接口返回JSON字符", r)
}
"function" == typeof s.success && s.success(a, e)
}
}, 30);
e.value = ""
}
}, e("upload", function (e) {
var a = new s(e = e || {});
a.init()
})
});
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