完成拖动排序

public/static/plugs/ulthon-admin/ulthon-admin.js

@@ -2425,6 +2425,16 @@
             } else {
                 replaceCallback(code);
             }
+        },
+        randdomString(len) {
+            len = len || 32;
+            var $chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';
+            var maxPos = $chars.length;
+            var pwd = '';
+            for (var i = 0; i < len; i++) {
+                pwd += $chars.charAt(Math.floor(Math.random() * maxPos));
+            }
+            return pwd;
         }
     };