Write a class named Student Students of the University , Meet the following requirements ：
1） contain " Student number ”、“ Gender ”、“ Age ”、＂ major " Four properties , among ＂ Age ＂ For private property ; All properties are initialized by the class's initialization method .2） In class , Define methods Getlnfo0 It is used to return four attribute information of students ;
3） In the main program , Use your own real student id 、 Gender 、 Age 、 A professional statement Students Instance object （ Instance name is self-made ）, And then invoke the instance Getlnfo0 Method to get four instance properties , And pass print The function outputs these properties （ Unlimited output format ）.
