对给定的学生数据库db_student设计一个学生表tb_student的操作页面，要求实现课程成绩录入的功能，输入学号后点击查询按钮可显示相应的姓名、专业，输入课程名称和成绩后，点击“添加”按钮可以添加学生的课程成绩(For a given student database db_student design a student table tb_student operation page, required to realize the function of the curriculum