定义一个结构体typedef struct{int num char name[10] int score[4] }STU ，里面有两个整形数组和一个字符数组，用来存储学生的信息；主函数中接收数据并存入结构体，然后调用函数进行数据的查找，修改删除；编写三个函数

find_stu(STU per[],int t) ：输入学生的学号进行查找

modify_stu(STU per[],int t) 对找到的学生的姓名和成绩进行修改；

delete_stu(STU per[],int m) 接受用户输入的学生学号，删除其，并打印出其余的学生的信息。

-Define a structures typedef struct {int num　Char name [10]　Int score [4]　} STU And there are two plastic array and a string array, used to store the students information　The main () function to receive data structures, and then calling function of data search, modification and deletion　Write three function

Find_stu (STU per [], int t)　: input the student id to undertake searching students

Modify_stu (STU per [], int t)　To find students name and grades modified

Delete_stu (STU per [], int m)　Accept user input students student id, delete it, and print out the rest of the students　information.