切换新版layui；增加表格多模板机制；增加local操作方法；增加页面记忆操作方法；删除多余代码；

public/static/common/js/app.js

@@ -39,8 +39,27 @@ loading.hide = function (count) {
 
 };
 
+
 const tools = {};
 
+
+// 操作本地缓存，实现set和get
+tools.setLocal = function (key, value) {
+    value = JSON.stringify([value]);
+    return localStorage.setItem(key, value);
+    
+};
+
+tools.getLocal = function (key, defaultValue) {
+    var value = localStorage.getItem(key);
+    
+    if (value) {
+        value = JSON.parse(value)[0];
+        return value;
+    }
+    return defaultValue;
+};
+
 tools.checkMobile = function () {
     var userAgentInfo = navigator.userAgent;
     var mobileAgents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];