#include
#include
#include
#define M 2
void maininterface();
void findinterface();
void choice(long sno[], char sname[][20], int sage[], float cs[], int N);
void findchoice(long sno[], char sname[][20], int sage[], float cs[], int N);
void input(long sno[], char sname[][20], int sage[], float cs[], int N);
void output(long sno[], char sname[][20], int sage[], float cs[], int N);
void snofind(long sno[], char sname[][20], int sage[], float cs[], int N);
void snamefind(long sno[], char sname[][20], int sage[], float cs[], int N);
void cssort(long sno[], char sname[][20], int sage[], float cs[], int N);
void total(long sno[], char sname[][20], int sage[], float cs[], int N);
int main(int argc, char *argv[])
{
//变量及数组定义
long sno[M];
char sname[M][20];
int sage[M];
float cs[M];
int i, j;
//显示界面
maininterface();
//选择操作
choice(sno, sname, sage, cs, M);
system("pause");
return 0;
}
void maininterface()
{
printf("\t\t*********************************************\n");
printf("\t\t* 欢迎使用学籍管理系统 \n");
printf("\t\t*1.输入学生的基本信息 2.输出学生的信息 *\n ");
printf("\t\t*3.查找学生的基本信息 4.学生成绩排序 *\n ");
printf("\t\t*5.统计学生的成绩分布 0.退出 *\n ");
printf("\t\t********************************************\n");
printf("\t\t请输入0--5: ");
}
void findinterface()
{
printf("\t\t*********************************************\n");
printf("\t\t* 欢迎使用查找操作 \n");
printf("\t\t*1.按学号查找 *\n ");
printf("\t\t*2.按姓名查找 *\n ");
printf("\t\t*0.返回上一级 *\n ");
printf("\t\t************************************************\n");
printf("\t\t请输入0—2:");
}
void input(long sno[], char sname[][20], int sage[], float cs[], int N)
{
int i;
//输入N个学生的基本信息
printf("输入%d个学生的信息.\n", N);
for (i = 0; i < N; i++)
{
printf("\n输入第%d个学生的\n", i + 1);
printf("学号:");
scanf("%ld", &sno[i]);
getchar();
printf("姓名:");
gets(sname[i]);
printf("年龄:");
scanf("%d", &sage[i]);
printf("C语言成绩:");
scanf("%f", &cs[i]);
}
}
void output(long sno[], char sname[][20], int sage[], float cs[], int N)
{
int i;
//输出N个学生的基本信息
printf("\n%d个学生的基本信息为\n", N);
for (i = 0; i < N; i++)
{
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
}
void snofind(long sno[], char sname[][20], int sage[], float cs[], int N)
{
int i;
long sno1;
//按学号查找
printf("请输入您要查找的学号:") ;
scanf("%ld", &sno1);
for (i = 0; i < N; i++)
{
if (sno[i] == sno1)
break;
}
if (i < N)
{
printf("学号为%ld的学生的基本信息为:\n", sno1);
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
else
printf("你输入的学号不存在!\n");
}
void snamefind(long sno[], char sname[][20], int sage[], float cs[], int N)
{
int i;
char sname1[20];
//按姓名查找
printf("请输入您要查找的姓名:") ;
getchar();
gets(sname1);
for (i = 0; i < N; i++)
{
if (strcmp(sname[i], sname1) == 0)
break;
}
if (i < N)
{
printf("姓名为%s的学生的基本信息为:\n", sname1);
printf("%-10ld", sno[i]);
//printf("%-16s", sname[i]);
printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
else
printf("你输入的姓名不存在!\n");
}
void cssort(long sno[], char sname[][20], int sage[], float cs[], int N )
{
//按成绩降序排序
int i, j, k;
long tsno;
char tsname[20];
int tsage;
float tcs;
for (i = 0; i < N - 1; i++)
{
k = i;
for (j = i + 1; j < N; j++)
{
if (cs[j] > cs[k])
k = j;
}
if (k != i)
{
//交换下标i与k对应学生的信息
tsno = sno[i];
sno[i] = sno[k];
sno[k] = tsno;//交换学号
strcpy(tsname, sname[i]) ;
strcpy(sname[i], sname[k]);
strcpy(sname[k], tsname);
tsage = sage[i];
sage[i] = sage[k];
sage[k] = tsage;
tcs = cs[i];
cs[i] = cs[k];
cs[k] = tcs;
}
}
}
void total(long sno[], char sname[][20], int sage[], float cs[], int N)
{
//统计
int i;
//按优,良 ,不及格的顺序打印
printf("\n优(C语言成绩>=90)的学生为:\n") ;
for (i = 0; i < N; i++)
{
if (cs[i] >= 90)
{
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
//printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
}
printf("\n良(80<=C语言成绩<90)的学生为:\n") ;
for (i = 0; i < N; i++)
{
if (cs[i] >= 80 && cs[i] < 90)
{
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
//printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
}
printf("\n中(70<=C语言成绩<80)的学生为:\n") ;
for (i = 0; i < N; i++)
{
if (cs[i] >= 70 && cs[i] < 80)
{
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
//printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
}
printf("\n及格(60<=C语言成绩<70)的学生为:\n") ;
for (i = 0; i < N; i++)
{
if (cs[i] >= 60 && cs[i] < 70)
{
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
//printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
}
printf("\n不及格(C语言成绩<60)的学生为:\n") ;
for (i = 0; i < N; i++)
{
if (cs[i] < 60)
{
printf("%-10ld", sno[i]);
printf("%-16s", sname[i]);
//printf("%-4d", sage[i]);
printf("%-6.0f", cs[i]);
printf("\n");
}
}
}
void choice(long sno[], char sname[][20], int sage[], float cs[], int N)
{
int m;
while (1)
{
scanf("%d", &m);
switch (m)
{
case 1:
input(sno, sname, sage, cs, N);
maininterface();
break;
case 2:
output(sno, sname, sage, cs, N);
maininterface();
break;
case 3:
findinterface();
findchoice(sno, sname, sage, cs, N);
break;
case 4:
cssort(sno, sname, sage, cs, N);
break;
case 5:
total(sno, sname, sage, cs, N);
maininterface();
break;
case 0:
exit(1);
}
}
}
void findchoice(long sno[], char sname[][20], int sage[], float cs[], int N)
{
int m;
while (1)
{
scanf("%d", &m);
switch (m)
{
case 1:
snofind(sno, sname, sage, cs, N);
findinterface();
break;
case 2:
snamefind(sno, sname, sage, cs, N);
findinterface();
break;
case 0:
break;
}
if (m == 0)
break;
}
maininterface();
}