luaobject

1.Class includes read-only elements and read-write elements,read-only elements can not be overridden(include sub class),read-write elements can be overridden(include sub class).
2.Class supports multiple inheritance,A class can also inherit class1 and class2,access the parent class through the super[index],the read-write elements of parent class can be overridden from sub class.<br>
3.Support inheritance chain(A inherit B,B inherit C,C inherit D,and so on).<br>
4.Support objects batch release,if object1,object2,object3 inherit Class1,release Class1,will release object1,object2,object3 automatic.
5.Support single object element definition.
6.Support bind event, event can be inherited.
7.Support multicast event handler,handler can have a different number of parameters(the first parameter is always sender).
8.Not support cross inheritance.