main.c文件
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#include "myFunction.h"
//系統開關,默認爲1.當賦值爲0則系統推出
int
flag
=
1
;
int
main
(
)
{
//初始化系統自帶的10條學生信息數據
initData
(
)
;
while
(
flag
)
{
//接收用戶輸入選項
int
userSelect
=
enterChoice
(
)
;
//根據用戶輸入選項調用不一樣功能的函數
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
(
"輸入有誤\n"
)
;
break
;
}
//刷新控制檯
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>
//初始化學生結構體數組
void
initData
(
)
;
//接收用戶輸入
int
enterChoice
(
)
;
//-------查詢類的函數-----------
//查詢全部信息
void
queryAll
(
)
;
//根據編號查詢
void
queryById
(
)
;
//根據名字查詢
void
queryByName
(
)
;
//根據性別查詢
void
queryByGender
(
)
;
//根據分數段查詢
void
queryByScore
(
)
;
//根據年齡段查詢
void
queryByAge
(
)
;
//顯示查詢目錄
int
showQueryMenu
(
)
;
//1、查詢功能函數
void
query
(
)
;
//2、新增功能函數
void
add
(
)
;
//3、修改功能函數
void
modify
(
)
;
//4、刪除功能函數
void
delete
(
)
;
#endif /* myFunction_c */
|
myFunction.c文件
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|
#include "myFunction.h"
//學生性別枚舉類型
typedef
enum
{
man
,
women
}
Sex
;
//學生信息結構體
struct
Student
{
int
no
;
char
name
[
20
]
;
Sex
gender
;
int
age
;
int
score
;
}
;
//默認存儲學生信息的數組長度
int
length
=
10
;
//如今已經使用的長度
int
count
=
10
;
//聲明一個struct Student類型全局指針變量,用於指向學生數組
struct
Student
*students
;
/**
初始化學生結構體數組
1.在堆內存申請10個struct Student類型大小的空間，組成一個數組
2.數組長度是10表明10個學生,數組中每一個元素都是一個struct Student類型的變量
3.併爲10個學生賦值各類信息
*/
void
initData
(
)
{
//在堆區劃分10個struct Student類型大小的空間建立數組存儲學生信息
students
=
calloc
(
10
,
sizeof
(
struct
Student
)
)
;
//初始化10個學生的信息
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
;
}
/**
* 接收用戶輸入選項
*
* @return 返回輸入選項給調用者
*/
int
enterChoice
(
)
{
printf
(
"****************\n"
)
;
printf
(
"*歡迎使用學生管理 *\n"
)
;
printf
(
"* 1.查詢學生 *\n"
)
;
printf
(
"* 2.新增學生 *\n"
)
;
printf
(
"* 3.修改學生 *\n"
)
;
printf
(
"* 4.刪除學生 *\n"
)
;
printf
(
"* 5.退出系統 *\n"
)
;
printf
(
"****************\n"
)
;
int
userSelect
=
0
;
printf
(
"請選擇功能:"
)
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
userSelect
)
;
return
userSelect
;
}
/**
* 停頓查詢信息顯示,讓用戶輸入任意字符後繼續執行後面代碼
*/
void
showTiShi
(
)
{
printf
(
"按任意鍵繼續!\n"
)
;
rewind
(
stdin
)
;
getchar
(
)
;
}
//-------查詢類的函數-----------
/**
* 查詢全部信息
*/
void
queryAll
(
)
{
printf
(
"編號 \t姓名\t 性別\t 年齡\t 分數\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
(
)
;
}
/**
* 根據編號查詢
*/
void
queryById
(
)
{
printf
(
"請輸入編號:"
)
;
int
no
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
no
)
;
printf
(
"編號 \t姓名\t 性別\t 年齡\t 分數\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
(
)
;
}
/**
* 根據名字查詢
*/
void
queryByName
(
)
{
printf
(
"輸入姓名:"
)
;
char
name
[
20
]
;
rewind
(
stdin
)
;
fgets
(
name
,
20
,
stdin
)
;
unsigned
long
len
=
strlen
(
name
)
;
if
(
name
[
len
-
1
]
==
'\n'
)
{
name
[
len
-
1
]
=
'\0'
;
}
printf
(
"編號 \t姓名\t 性別\t 年齡\t 分數\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
(
)
;
}
/**
* 根據性別查詢
*/
void
queryByGender
(
)
{
printf
(
"請輸入性別: 1.男 0.女"
)
;
int
gender
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
gender
)
;
printf
(
"編號 \t姓名\t 性別\t 年齡\t 分數\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
(
)
;
}
/**
* 根據分數段查詢
*/
void
queryByScore
(
)
{
printf
(
"請輸入要查詢的最低分數:"
)
;
int
score1
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
score1
)
;
printf
(
"請輸入要查詢的最高分數:"
)
;
int
score2
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
score2
)
;
printf
(
"編號 \t姓名\t 性別\t 年齡\t 分數\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
(
)
;
}
/**
* 根據年齡段查詢
*/
void
queryByAge
(
)
{
printf
(
"請輸入要查詢的最小年齡:"
)
;
int
age1
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
age1
)
;
printf
(
"請輸入要查詢的最大年齡:"
)
;
int
age2
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
age2
)
;
printf
(
"編號 \t姓名\t 性別\t 年齡\t 分數\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
(
)
;
}
/**
* 示查詢目錄,接收用戶輸入選項
*
* @return 返回用戶輸入選項
*/
int
showQueryMenu
(
)
{
printf
(
"****************\n"
)
;
printf
(
"*歡迎使用學生管理 *\n"
)
;
printf
(
"* 1.全部查詢 *\n"
)
;
printf
(
"* 2.編號查詢 *\n"
)
;
printf
(
"* 3.名字查詢 *\n"
)
;
printf
(
"* 4.性別查詢 *\n"
)
;
printf
(
"* 5.分數查詢 *\n"
)
;
printf
(
"* 6.年齡查詢 *\n"
)
;
printf
(
"****************\n"
)
;
printf
(
"請選擇查詢項目:"
)
;
int
userSeclect
=
0
;
rewind
(
stdin
)
;
scanf
(
"%d"
,
&
userSeclect
)
;
return
userSeclect
;
}
/**
* 1、查詢功能
*/
void
query
(
)
{
system
(
"clear"
)
;
//接收查詢命令
int
userSelect
=
showQueryMenu
(
)
;
//判斷查詢選項
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
(
"你輸入有誤!\n"
)
;
break
;
}
}
/**
* 2、新增功能
*/
void
add
(
)
{
//1.建立一個學生結構體變量,將變量存儲到數組之中。
//判斷數組有沒有存滿,存滿則擴容
if
(
length
==
count
)
{
//說明滿了
students
=
realloc
(
students
,
length
+
1
)
;
//修改數組的長度
length
=
length
+
1
;
}
//往數組中存儲數據
struct
Student
stu
;
printf
(
"請輸入新增學生的姓名:"
)
;
scanf
(
"%s"
,
stu
.
name
)
;
printf
(
"請輸入新增學生的年齡:"
)
;
scanf
(
"%d"
,
&
stu
.
age
)
;
printf
(
"請輸入新增學生的性別 0.男 1.女 :"
)
;
scanf
(
"%d"
,
&
stu
.
gender
)
;
printf
(
"請輸入新增學生的成績:"
)
;
scanf
(
"%d"
,
&
stu
.
score
)
;
//新增數據的編碼就是count
stu
.
no
=
count
;
//將學生變量存儲到數組中,count比下標大1
students
[
count
]
=
stu
;
count
++
;
printf
(
"信息已更新...\n"
)
;
showTiShi
(
)
;
}
/**
* 3、修改功能
*/
void
modify
(
)
{
//接收用戶輸入要修改的編號
printf
(
"輸編號:"
)
;
int
no
=
0
;
rewind
(
stdin
)
;
|