diff --git a/src/main.c b/src/main.c
index 4d86da1..d3403f0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,6 +1,203 @@
 #include <stdio.h>
-int main()
-{
-	return 0;
+#include <stdlib.h>
+#include <string.h>
+#define N 99
+static int run;
+static int num;
+struct Date{
+	int year;
+	int month;
+	int day;
+};
+struct Student{
+	int ID;
+	char name[20];
+	char sex[1];
+	int age;
+	char major[20];
+	struct Date birthday;
+};
+static struct Student student[N];
+void menu(){
+	printf("\n\n");
+	printf("*****************************************************\n");
+	printf("*-----------------数据结构第十一组-------------------\n");	
+	printf("*                 学生信息管理系统                  *\n");
+	printf("*****************************************************\n");
+	printf("********************系统功能菜单*********************\n");
+	printf("----------------------     --------------------------\n");
+	printf("*****************************************************\n");
+	printf("**    1、增加学生信息          2、查询学生信息     **\n");
+	printf("*****************************************************\n");
+	printf("**    3、删除学生信息          4、列出所有学生信息 **\n");
+	printf("*****************************************************\n");
+	printf("**    5、退出系统                                  **\n");
+	printf("*****************************************************\n");
+	printf("----------------------     --------------------------\n");
+}
+void addSTudent(){					//增加学生信息
+	int i = 0;
+	while(1){
+		if(student[i].ID == 0&&i!=N){//找一个空位置存放该学生信息
+			scanf:
+			printf("请输入学生学号：");
+			scanf("%d",&student[i].ID);
+			for(int j=0;j<N;j++){
+				if(student[i].ID == student[j].ID&&i!=j){
+					printf("该学生学号已经存在，请重新输入\n");
+					goto scanf;
+				}
+			}
+			printf("请输入学生姓名：");
+			scanf("%s",student[i].name);
+			printf("请输入学生生日(格式年/月/日)：");
+			scanf("%d/%d/%d",&student[i].birthday.year,&student[i].birthday.month,&student[i].birthday.day);
+			printf("请输入学生性别：");
+			scanf("%s",student[i].sex);
+			printf("请输入学生年龄：");
+			scanf("%d",&student[i].age);
+			printf("请输入学生专业：");
+			scanf("%s",student[i].major);
+			break;
+		}
+		i++;
+	}
+	printf("添加成功\n");
+	system("pause");
 }
 
+void listStudent(){	
+	printf("姓名\t学号\t性别\t年龄\t专业\t\t生日\n");
+	for(int i=0;i<N;i++){
+		if(student[i].ID != 0){
+			printf("%s\t%d\t%s\t%d\t%s\t%d年%d月%d日\n",student[i].name,student[i].ID,student[i].sex,student[i].age,student[i].major,student[i].birthday.year,student[i].birthday.month,student[i].birthday.day);
+		}
+	}
+	system("pause");
+}
+
+void searchStudent(){
+	int tab;
+	int ID;
+	char name[20];
+	printf("\n\n");
+	printf("===================================\n");
+	printf("**1.根据ID查找     **2.根据姓名查找\n");
+	printf("=====输入其他任意数字返回主菜单====\n");
+	printf("===================================\n");
+	printf("请输入菜单编号：");
+	scanf("%d",&tab);
+	switch (tab) {
+	case 1:
+		int flag1 = 0;
+		printf("请输入要查找的ID：");
+		scanf("%d",&ID);
+		for(int i=0;i<N;i++){
+			if(student[i].ID == ID){
+				printf("%s\t%d\t%s\t%d\t%s\t%d年%d月%d日\n",student[i].name,student[i].ID,student[i].sex,student[i].age,student[i].major,student[i].birthday.year,student[i].birthday.month,student[i].birthday.day);
+				flag1 = 1;
+			}
+		}
+		if(flag1 == 0){
+			printf("查无此人\n");
+		}
+		break;
+	case 2:
+		int flag2 = 0;
+		printf("请输入要查找的姓名：");
+		scanf("%s",name);
+		for(int i=0;i<N;i++){
+			if(strcmp(student[i].name,name)==0){
+				printf("%s\t%d\t%s\t%d\t%s\t%d年%d月%d日\n",student[i].name,student[i].ID,student[i].sex,student[i].age,student[i].major,student[i].birthday.year,student[i].birthday.month,student[i].birthday.day);
+				flag2 = 1;
+			}
+		}
+		if(flag2 == 0){
+			printf("查无此人\n");
+		}
+		break;
+	default:
+		break;
+	}
+	system("pause");
+}
+void deleteStudent(){
+	int tab;
+	int ID;
+	char name[20];
+	printf("\n\n");
+	printf("===================================\n");
+	printf("**1.根据ID删除     **2.根据姓名删除\n");
+	printf("=====输入其他任意数字返回主菜单====\n");
+	printf("==========不建议根据姓名删除=======\n");
+	printf("===================================\n");
+	printf("请输入菜单编号：");
+	scanf("%d",&tab);
+	switch (tab) {
+	case 1:
+		int flag1 = 0;
+		printf("请输入要删除的ID：");
+		scanf("%d",&ID);
+		for(int i=0;i<N;i++){
+			if(student[i].ID == ID){
+				student[i] = student[N];
+				flag1 = 1;
+			}
+		}
+		if(flag1 == 0){
+			printf("查无此人\n");
+		}
+		break;
+	case 2:
+		int flag2 = 0;
+		printf("请输入要删除的姓名：");
+		scanf("%s",name);
+		for(int i=0;i<N;i++){
+			if(strcmp(student[i].name,name)==0){
+				student[i] = student[N];
+				flag2 = 1;
+			}
+		}
+		if(flag2 == 0){
+			printf("查无此人\n");
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+void shutdown(){
+	run = 0;
+}
+int main(int argc, char *argv[]) {
+	
+	run = 1;
+	while(run){
+		system("cls");
+		menu();
+		printf("请输入菜单编号:");
+		scanf("%d",&num);
+		switch (num) {
+		case 1:
+			addSTudent();
+			break;
+		case 2:
+			searchStudent();
+			break;
+		case 3:
+			deleteStudent();
+			break;
+		case 4:
+			listStudent();
+			break;
+		case 5:
+			shutdown();
+			break;
+		default:
+			printf("输入错误，请重新输入");
+			break;
+		}
+	}
+	return 0;
+}
\ No newline at end of file