diff --git a/admin-core/src/main/resources/static/js/common.js b/admin-core/src/main/resources/static/js/common.js
index 65c15f8f..2f800ee1 100644
--- a/admin-core/src/main/resources/static/js/common.js
+++ b/admin-core/src/main/resources/static/js/common.js
@@ -46,6 +46,55 @@ $.ajaxSetup({
     },
 });
 
+if(typeof Object.assign != 'function') {
+    (function() {
+        Object.assign = function(target) {
+            'use strict';
+            if(target === undefined || target === null) {
+                throw new TypeError('Cannot convert undefined or null to object');
+            }
+
+            var output = Object(target);
+            for(var index = 1; index < arguments.length; index++) {
+                var source = arguments[index];
+                if(source !== undefined && source !== null) {
+                    for(var nextKey in source) {
+                        if(source.hasOwnProperty(nextKey)) {
+                            output[nextKey] = source[nextKey];
+                        }
+                    }
+                }
+            }
+            return output;
+        };
+    })();
+}
+
+// 增加IE对Object.assign 的支持
+if(typeof Object.assign != 'function') {
+    (function() {
+        Object.assign = function(target) {
+            'use strict';
+            if(target === undefined || target === null) {
+                throw new TypeError('Cannot convert undefined or null to object');
+            }
+
+            var output = Object(target);
+            for(var index = 1; index < arguments.length; index++) {
+                var source = arguments[index];
+                if(source !== undefined && source !== null) {
+                    for(var nextKey in source) {
+                        if(source.hasOwnProperty(nextKey)) {
+                            output[nextKey] = source[nextKey];
+                        }
+                    }
+                }
+            }
+            return output;
+        };
+    })();
+}
+
 //日期格式化
 Date.prototype.format = function (format) {
     var d = this, o = {
@@ -107,15 +156,21 @@ var Common = {
                 }
             },
             error: function (rsp) {
-                if(rsp.responseJSON?.msg)
-                    Common.error(rsp.responseJSON?.msg);
+                if(rsp.responseJSON && rsp.responseJSON.msg)
+                    Common.error(rsp.responseJSON.msg);
                 else
                     Common.error('服务器错误,请联系管理员');
             }
         })
 
     },
-    downLoad: function (url, data = {}, method = 'POST') {
+    downLoad: function (url, data, method) {
+        if(!method) {
+            method = 'POST';
+        }
+        if(!data) {
+            data = {};
+        }
         var form = $('<form method="'+ method +'" action="' + Common.ctxPath + url + '">');
         $.each(data, function (k, v) {
             form.append($('<input type="hidden" name="' + k +
diff --git a/admin-core/src/main/resources/static/js/lib.js b/admin-core/src/main/resources/static/js/lib.js
index a1aabb7d..daa6d480 100644
--- a/admin-core/src/main/resources/static/js/lib.js
+++ b/admin-core/src/main/resources/static/js/lib.js
@@ -227,7 +227,13 @@ var Lib = {
          */
         $(form).find(".input-year,.input-month,.input-time,.input-datetime").each(function () {
             laydate = layui.laydate;
-            var classAttr = [...$(this)[0].classList].filter(item => /^input-/g.test(item))[0];
+            var classAttr;
+            $(this)[0].classList.forEach(function (value, key) {
+              if(/^input-/g.test(value) && classAttr == null) {
+                  classAttr = value;
+              }
+            });
+
             var options = $(this).data('options');
             try {
                 options = JSON.parse(options || '{}')