// Use this for initialization
        void Start()
        {
            HotfixCalc   calc         = new HotfixCalc();
            NoHotfixCalc ordinaryCalc = new NoHotfixCalc();

            int CALL_TIME = 100 * 1000 * 1000;
            var start     = System.DateTime.Now;

            for (int i = 0; i < CALL_TIME; i++)
            {
                calc.Add(2, 1);
            }
            var d1 = (System.DateTime.Now - start).TotalMilliseconds;

            Debug.Log("Hotfix using:" + d1);

            start = System.DateTime.Now;
            for (int i = 0; i < CALL_TIME; i++)
            {
                ordinaryCalc.Add(2, 1);
            }
            var d2 = (System.DateTime.Now - start).TotalMilliseconds;

            Debug.Log("No Hotfix using:" + d2);

            Debug.Log("drop:" + ((d1 - d2) / d1));

            Debug.Log("Before Fix: 2 + 1 = " + calc.Add(2, 1));
            Debug.Log("Before Fix: Vector3(2, 3, 4) + Vector3(1, 2, 3) = " + calc.Add(new Vector3(2, 3, 4), new Vector3(1, 2, 3)));
            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.HotfixCalc, 'Add', function(self, a, b)
                return a + b
            end)
        ");
            Debug.Log("After Fix: 2 + 1 = " + calc.Add(2, 1));
            Debug.Log("After Fix: Vector3(2, 3, 4) + Vector3(1, 2, 3) = " + calc.Add(new Vector3(2, 3, 4), new Vector3(1, 2, 3)));

            double num;
            string str = "hehe";
            int    ret = calc.TestOut(100, out num, ref str);

            Debug.Log("ret = " + ret + ", num = " + num + ", str = " + str);

            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.HotfixCalc, 'TestOut', function(self, a, c, go)
                    print('TestOut', self, a, c, go)
                    if go then error('test error') end
                    return a + 10, a + 20, 'right version'
                end)
        ");
            str = "hehe";
            ret = calc.TestOut(100, out num, ref str);
            Debug.Log("ret = " + ret + ", num = " + num + ", str = " + str);

            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.HotfixCalc, {
                 Test1 = function(self)
                    print('Test1', self)
                    return 1
                 end;
                 Test2 = function(self, a, b)
                     print('Test1', self, a, b)
                     return a + 10, 1024, b
                 end;
                 Test3 = function(a)
                    print(a)
                    return 10
                 end;
                 Test4 = function(a)
                    print(a)
                 end;
                 Test5 = function(self, a, ...)
                    print('Test4', self, a, ...)
                 end
            })
        ");

            int    r1 = calc.Test1 <int>();
            double r2 = calc.Test1 <double>();

            Debug.Log("r1:" + r1 + ",r2:" + r2);

            string ss = "heihei";
            int    r3 = calc.Test2(r1, out r2, ref ss);

            Debug.Log("r1:" + r1 + ",r2:" + r2 + ",r3:" + r3 + ",ss:" + ss);

            r3 = HotfixCalc.Test3("test3");
            r3 = HotfixCalc.Test3(2);
            r3 = HotfixCalc.Test3(this);
            Debug.Log("r3:" + r3);
            HotfixCalc.Test4(this);
            HotfixCalc.Test4(2);
            calc.Test5(10, "a", "b", "c");
            calc.Test5(10, 1, 3, 5);

            Debug.Log("----------------------before------------------------");
            TestStateful();
            System.GC.Collect();
            System.GC.WaitForPendingFinalizers();
            XLuaEnv.DoString(@"
            local util = require 'xlua.util'
            xlua.hotfix(CS.IFramework.Lua.StatefullTest, {
                ['.ctor'] = function(csobj)
                    util.state(csobj, {evt = {}, start = 0, prop = 0})
                end;
                set_AProp = function(self, v)
                    print('set_AProp', v)
                    self.prop = v
                end;
                get_AProp = function(self)
                    return self.prop
                end;
                get_Item = function(self, k)
                    print('get_Item', k)
                    return 1024
                end;
                set_Item = function(self, k, v)
                    print('set_Item', k, v)
                end;
                add_AEvent = function(self, cb)
                    print('add_AEvent', cb)
                    table.insert(self.evt, cb)
                end;
                remove_AEvent = function(self, cb)
                   print('remove_AEvent', cb)
                   for i, v in ipairs(self.evt) do
                       if v == cb then
                           table.remove(self.evt, i)
                           break
                       end
                   end
                end;
                Start = function(self)
                    print('Start')
                    for _, cb in ipairs(self.evt) do
                        cb(self.start, 2)
                    end
                    self.start = self.start + 1
                end;
                StaticFunc = function(a, b, c)
                   print(a, b, c)
                end;
                GenericTest = function(self, a)
                   print(self, a)
                end;
                Finalize = function(self)
                   print('Finalize', self)
                end
           })
        ");
            Debug.Log("----------------------after------------------------");
            TestStateful();
            XLuaEnv.FullGc();
            System.GC.Collect();
            System.GC.WaitForPendingFinalizers();

            var genericObj = new GenericClass <double>(1.1);

            genericObj.Func1();
            Debug.Log(genericObj.Func2());
            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.GenericClass(CS.System.Double), {
                ['.ctor'] = function(obj, a)
                    print('GenericClass<double>', obj, a)
                end;
                Func1 = function(obj)
                    print('GenericClass<double>.Func1', obj)
                end;
                Func2 = function(obj)
                    print('GenericClass<double>.Func2', obj)
                    return 1314
                end
            })
        ");
            genericObj = new GenericClass <double>(1.1);
            genericObj.Func1();
            Debug.Log(genericObj.Func2());

            InnerTypeTest itt = new InnerTypeTest();

            itt.Foo();
            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.InnerTypeTest, 'Bar', function(obj)
                    print('lua Bar', obj)
                    return {x = 10, y = 20}
                end)
        ");
            itt.Foo();

            StructTest st = new StructTest(gameObject);

            Debug.Log("go=" + st.GetGo(123, "john"));
            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.StructTest, 'GetGo', function(self, a, b)
                    print('GetGo', self, a, b)
                    return nil
                end)
        ");
            Debug.Log("go=" + st.GetGo(123, "john"));

            GenericStruct <int> gs = new GenericStruct <int>(1);

            Debug.Log("gs.GetA()=" + gs.GetA(123));
            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.GenericStruct(CS.System.Int32), 'GetA', function(self, a)
                    print('GetA',self, a)
                    return 789
                end)
        ");
            Debug.Log("gs.GetA()=" + gs.GetA(123));

            try
            {
                calc.TestOut(100, out num, ref str, gameObject);
            }
            catch (LuaException e)
            {
                Debug.Log("throw in lua an catch in c# ok, e.Message:" + e.Message);
            }


            BaseTestBase <InnerTypeTest> bt = new BaseTest();

            bt.Foo(1);
            Debug.Log(bt);

            XLuaEnv.DoString(@"
            xlua.hotfix(CS.IFramework.Lua.BaseTest, 'Foo', function(self, p)
                    print('BaseTest', p)
                end)
            xlua.hotfix(CS.IFramework.Lua.BaseTest, 'ToString', function(self)
                    return '>>>' .. base(self):ToString()
                end)
        ");
            bt.Foo(2);
            Debug.Log(bt);
        }