1，后端Operation逻辑调整

2，数据库访问逻辑调整
3，AccountManagement调整优化
4，完善功能4/6

src/core/operation/Search.json

@@ -1,8 +1,8 @@
 {
   "options":{
     "table": "String",
-    "fields": "List",
-    "value": "String",
+    "fields": "List<String>",
+    "limits": "Map<String,String>",
     "start": "int",
     "end": "int"
   },

src/core/user/utils/AccountManagement.java

@@ -27,7 +27,7 @@ public interface AccountManagement {
             Map<String,String> limits = new HashMap<>();
             limits.put("id",id);
             try {
-                rs = DBManagement.select(columns,userTable,limits,1,2);
+                rs = DBManagement.select(columns,userTable,limits,0,1);
             } catch (Exception e) {
                 throw new GExcptSQL("QUERY\n\t"+id+"\nfailure");
             }