main.c文件
|
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#include "myFunction.h"
//系统开关,默认为1.当赋值为0则系统推出
int
flag
=
1
;
int
main
(
)
{
//初始化系统自带的10条学生信息数据
initData
(
)
;
while
(
flag
)
{
//接收用户输入选项
int
userSelect
=
enterChoice
(
)
;
//根据用户输入选项调用不一样功能的函数
switch
(
userSelect
)
{
case
1
:
query
(
)
;
break
;
case
2
:
add
(
)
;
break
;
case
3
:
modify
(
)
;
break
;
case
4
:
delete
(
)
;
break
;
case
5
:
flag
=
0
;
break
;
default
:
printf
(
"输入有误\n"
)
;
break
;
}
//刷新控制台
system
(
"clear"
)
;
}
return
0
;
}
|
myFunction.h文件
|
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|
#ifndef myFunction_c
#define myFunction_c
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
//初始化学生结构体数组
void
initData
(
)
;
//接收用户输入
int
enterChoice
(
)
;
//-------查询类的函数-----------
//查询全部信息
void
queryAll
(
)
;
//根据编号查询
void
queryById
(
)
;
//根据名字查询
void
queryByName
(
)
;
//根据性别查询
void
queryByGender
(
)
;
//根据分数段查询
void
queryByScore
(
)
;
//根据年龄段查询
void
queryByAge
(
)
;
//显示查询目录
int
showQueryMenu
(
)
;
//1、查询功能函数
void
query
(
)
;
//2、新增功能函数
void
add
(
)
;
//3、修改功能函数
void
modify
(
)
;
//4、删除功能函数
void
delete
(
)
;
#endif /* myFunction_c */
|
myFunction.c文件
|
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|
#include "myFunction.h"
//学生性别枚举类型
typedef
enum
{
man
,
women
}
Sex
;
//学生信息结构体
struct
Student
{
int
no
;
char
name
[
20
]
;
Sex
gender
;
int
age
;
int
score
;
}
;
//默认存储学生信息的数组长度
int
length
=
10
;
//如今已经使用的长度
int
count
=
10
;
//声明一个struct Student类型全局指针变量,用于指向学生数组
struct
Student
*students
;
/**
初始化学生结构体数组
1.在堆内存申请10个struct Student类型大小的空间，组成一个数组
2.数组长度是10表明10个学生,数组中每一个元素都是一个struct Student类型的变量
3.并为10个学生赋值各类信息
*/
void
initData
(
)
{
//在堆区划分10个struct Student类型大小的空间建立数组存储学生信息
students
=
calloc
(
10
,
sizeof
(
struct
Student
)
)
;
//初始化10个学生的信息
students
[
0
]
.
no
=
0
;
strcpy
(
students
[
0
]
.
name
,
"jack"
)
;
students
[
0
]
.
gender
=
1
;
students
[
0
]
.
score
=
100
;
students
[
0
]
.
age
=
18
;
students
[
1
]
.
no
=
1
;
strcpy
(
students
[
1
]
.
name
,
"rose"
)
;
students
[
1
]
.
gender
=
0
;
students
[
1
]
.
score
=
99
;
students
[
1
]
.
age
=
20
;
students
[
2
]
.
no
=
2
;
strcpy
(
students
[
2
]
.
name
,
"luse"
)
;
students
[
2
]
.
gender
=
0
;
students
[
2
]
.
score
=
79
;
students
[
2
]
.
age
=
16
;
students
[
3
]
.
no
=
3
;
strcpy
(
students
[
3
]
.
name
,
"mark"
)
;
students
[
3
]
.
gender
=
1
;
students
[
3
]
.
score
=
96
;
students
[
3
]
.
age
=
19
;
students
[
4
]
.
no
=
4
;
strcpy
(
students
[
4
]
.
name
,
"luomi"
)
;
students
[
4
]
.
gender
=
0
;
students
[
4
]
.
score
=
93
;
students
[
4
]
.
age
=
20
;
students
[
5
]
.
no
=
5
;
strcpy
(
students
[
5
]
.
name
,
"mack"
)
;
students
[
5
]
.
gender
=
0
;
students
[
5
]
.
score
=
54
;
students
[
5
]
.
age
=
18
;
students
[
6
]
.
no
=
6
;
strcpy
(
students
[
6
]
.
name
,
"weike"
)
;
students
[
6
]
.
gender
=
1
;
students
[
6
]
.
score
=
88
;
students
[
6
]
.
age
=
15
;
students
[
7
]
.
no
=
7
;
strcpy
(
students
[
7
]
.
name
,
"wang"
)
;
students
[
7
]
.
gender
=
0
;
students
[
7
]
.
score
=
90
;
students
[
7
]
.
age
=
17
;
students
[
8
]
.
no
=
8
;
strcpy
(
students
[
8
]
.
name
,
"zhou"
)
;
students
[
8
]
.
gender
=
1
;
students
[
8
]
.
score
=
88
;
students
[
8
]
.
age
=
18
;
students
[
9
]
.
no
=
9
;
strcpy
(
students
[
9
]
.
name
,
"meili"
)
;
students
[
9
]
.
gender
=
0
;
students
[
9
]
.
score
=
98
;
students
[
9
]
.
age
=
19
;
}
/**
* 接收用户输入选项
*
* @return 返回输入选项给调用者
*/
int
enterChoice
(
)
{
printf
(
"****************\n"
)
;
printf
(
"*欢迎使用学生管理 *\n"
)
;
printf
(
"* 1.查询学生 *\n"
)
;
printf
(
"* 2.新增学生 *\n"
)
;
printf
(
"* 3.修改学生 *\n"
)
;
printf
(
"* 4.删除学生 *\n"
)
;
printf
(
"* 5.退出系统 *\n"
)
;
printf
(
"****************\n"
)
;
int
userSelect
=
0
;
printf
(
"请选择功能:"
)
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
userSelect
)
;
return
userSelect
;
}
/**
* 停顿查询信息显示,让用户输入任意字符后继续执行后面代码
*/
void
showTiShi
(
)
{
printf
(
"按任意键继续!\n"
)
;
rewind
(
stdin
)
;
getchar
(
)
;
}
//-------查询类的函数-----------
/**
* 查询全部信息
*/
void
queryAll
(
)
{
printf
(
"编号 \t姓名\t 性别\t 年龄\t 分数\n"
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
printf
(
"%d\t %s\t %s\t %d\t %d\n"
,
students
[
i
]
.
no
,
students
[
i
]
.
name
,
students
[
i
]
.
gender
==
0
?
"男"
:
"女"
,
students
[
i
]
.
age
,
students
[
i
]
.
score
)
;
}
showTiShi
(
)
;
}
/**
* 根据编号查询
*/
void
queryById
(
)
{
printf
(
"请输入编号:"
)
;
int
no
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
no
)
;
printf
(
"编号 \t姓名\t 性别\t 年龄\t 分数\n"
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
if
(
no
==
students
[
i
]
.
no
)
{
printf
(
"%d\t%s\t%s\t%d\t%d\n"
,
students
[
i
]
.
no
,
students
[
i
]
.
name
,
students
[
i
]
.
gender
==
0
?
"男"
:
"女"
,
students
[
i
]
.
age
,
students
[
i
]
.
score
)
;
}
}
showTiShi
(
)
;
}
/**
* 根据名字查询
*/
void
queryByName
(
)
{
printf
(
"输入姓名:"
)
;
char
name
[
20
]
;
rewind
(
stdin
)
;
fgets
(
name
,
20
,
stdin
)
;
unsigned
long
len
=
strlen
(
name
)
;
if
(
name
[
len
-
1
]
==
'\n'
)
{
name
[
len
-
1
]
=
'\0'
;
}
printf
(
"编号 \t姓名\t 性别\t 年龄\t 分数\n"
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
if
(
strcmp
(
name
,
students
[
i
]
.
name
)
==
0
)
{
printf
(
"%d\t%s\t%s\t%d\t%d\n"
,
students
[
i
]
.
no
,
students
[
i
]
.
name
,
students
[
i
]
.
gender
==
0
?
"男"
:
"女"
,
students
[
i
]
.
age
,
students
[
i
]
.
score
)
;
}
}
showTiShi
(
)
;
}
/**
* 根据性别查询
*/
void
queryByGender
(
)
{
printf
(
"请输入性别: 1.男 0.女"
)
;
int
gender
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
gender
)
;
printf
(
"编号 \t姓名\t 性别\t 年龄\t 分数\n"
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
if
(
gender
==
students
[
i
]
.
gender
)
{
printf
(
"%d\t%s\t%s\t%d\t%d\n"
,
students
[
i
]
.
no
,
students
[
i
]
.
name
,
students
[
i
]
.
gender
==
0
?
"男"
:
"女"
,
students
[
i
]
.
age
,
students
[
i
]
.
score
)
;
}
}
showTiShi
(
)
;
}
/**
* 根据分数段查询
*/
void
queryByScore
(
)
{
printf
(
"请输入要查询的最低分数:"
)
;
int
score1
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
score1
)
;
printf
(
"请输入要查询的最高分数:"
)
;
int
score2
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
score2
)
;
printf
(
"编号 \t姓名\t 性别\t 年龄\t 分数\n"
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
if
(
students
[
i
]
.
score
>=
score1
&&
students
[
i
]
.
score
<=
score2
)
{
printf
(
"%d\t%s\t%s\t%d\t%d\n"
,
students
[
i
]
.
no
,
students
[
i
]
.
name
,
students
[
i
]
.
gender
==
0
?
"男"
:
"女"
,
students
[
i
]
.
age
,
students
[
i
]
.
score
)
;
}
}
showTiShi
(
)
;
}
/**
* 根据年龄段查询
*/
void
queryByAge
(
)
{
printf
(
"请输入要查询的最小年龄:"
)
;
int
age1
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
age1
)
;
printf
(
"请输入要查询的最大年龄:"
)
;
int
age2
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
age2
)
;
printf
(
"编号 \t姓名\t 性别\t 年龄\t 分数\n"
)
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
if
(
students
[
i
]
.
age
>=
age1
&&
students
[
i
]
.
age
<=
age2
)
{
printf
(
"%d\t%s\t%s\t%d\t%d\n"
,
students
[
i
]
.
no
,
students
[
i
]
.
name
,
students
[
i
]
.
gender
==
0
?
"男"
:
"女"
,
students
[
i
]
.
age
,
students
[
i
]
.
score
)
;
}
}
showTiShi
(
)
;
}
/**
* 示查询目录,接收用户输入选项
*
* @return 返回用户输入选项
*/
int
showQueryMenu
(
)
{
printf
(
"****************\n"
)
;
printf
(
"*欢迎使用学生管理 *\n"
)
;
printf
(
"* 1.全部查询 *\n"
)
;
printf
(
"* 2.编号查询 *\n"
)
;
printf
(
"* 3.名字查询 *\n"
)
;
printf
(
"* 4.性别查询 *\n"
)
;
printf
(
"* 5.分数查询 *\n"
)
;
printf
(
"* 6.年龄查询 *\n"
)
;
printf
(
"****************\n"
)
;
printf
(
"请选择查询项目:"
)
;
int
userSeclect
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
userSeclect
)
;
return
userSeclect
;
}
/**
* 1、查询功能
*/
void
query
(
)
{
system
(
"clear"
)
;
//接收查询命令
int
userSelect
=
showQueryMenu
(
)
;
//判断查询选项
switch
(
userSelect
)
{
case
1
:
queryAll
(
)
;
break
;
case
2
:
queryById
(
)
;
break
;
case
3
:
queryByName
(
)
;
break
;
case
4
:
queryByGender
(
)
;
break
;
case
5
:
queryByScore
(
)
;
break
;
case
6
:
queryByAge
(
)
;
break
;
default
:
printf
(
"你输入有误!\n"
)
;
break
;
}
}
/**
* 2、新增功能
*/
void
add
(
)
{
//1.建立一个学生结构体变量,将变量存储到数组之中。
//判断数组有没有存满,存满则扩容
if
(
length
==
count
)
{
//说明满了
students
=
realloc
(
students
,
length
+
1
)
;
//修改数组的长度
length
=
length
+
1
;
}
//往数组中存储数据
struct
Student
stu
;
printf
(
"请输入新增学生的姓名:"
)
;
scanf
(
"%s"
,
stu
.
name
)
;
printf
(
"请输入新增学生的年龄:"
)
;
scanf
(
"%d"
,
&
stu
.
age
)
;
printf
(
"请输入新增学生的性别 0.男 1.女 :"
)
;
scanf
(
"%d"
,
&
stu
.
gender
)
;
printf
(
"请输入新增学生的成绩:"
)
;
scanf
(
"%d"
,
&
stu
.
score
)
;
//新增数据的编码就是count
stu
.
no
=
count
;
//将学生变量存储到数组中,count比下标大1
students
[
count
]
=
stu
;
count
++
;
printf
(
"信息已更新...\n"
)
;
showTiShi
(
)
;
}
/**
* 3、修改功能
*/
void
modify
(
)
{
//接收用户输入要修改的编号
printf
(
"输编号:"
)
;
int
no
=
0
;
rewind
(
stdin
)
;
|