编写一个控制台应用程序，程序中有两个类定义，一个是创建程序时系统自动创建的类Class1，一个是用户自定义的Student类，要求该类包含私有字段：学号(字符串)、姓名（字符串）和性别（字符），具有三个属性：学号（读写）、姓名（只读）、性别（读写），具有有参构造方法、具有同时显示学生个人信息的方法。在Class1类的Main方法中完成以下功能：

　（1）从键盘上输入一个学生的个人信息（学号、姓名、性别）。

（2）修改该学生的学号和性别。　　-Write a console application, the program has two class definitions, one is created automatically when you create a program of class Class1, one is a user-defined Student class, requiring class contains private fields: Student ID (string), Name (string) and gender (character), has three attributes: Student ID (read-write), name (read only), gender (read-write), with a parameter constructor method, with simultaneous display students'　personal information. In the Main method of the Class1 class to complete the following functions: (a) from the keyboard to enter a student' s personal information (student number, name, sex). (2) modify the student' s school number and gender.