检查重复

+// ==UserScript==
+// @name         检查重复
+// @namespace    http://tampermonkey.net/
+// @version      0.1
+// @description  try to take over the world!
+// @author       You
+// @match        http://dpcms8.sysu.edu.cn/gp-dev/manage/menu/main
+// @grant        none
+// ==/UserScript==
+
+(function($) {
+  var getRandomColor = function() {
+      return '#' + (function(color) {
+        return (color += '0123456789abcdef' [Math.floor(Math.random() * 16)]) && (color.length == 6) ? color : arguments.callee(color);
+      })('');
+  }
+
+  $('a.menu-item__link').each(function(parentIndex, e) {
+    var color = getRandomColor();
+    var parent = $(this);
+    $('a.menu-item__link').each(function(index, e) {
+      if (parentIndex == index) {
+        return true;
+      }
+      if (parent.attr('href') == '/gp-dev/') {
+        return false;
+      }
+
+      if ($(this).attr('href') == parent.attr('href')) {
+
+        $(this).css('background', color);
+        parent.css('background', color);
+      }
+    });
+  });
+})(jQuery);