心理

当前位置 /首页/完美生活/心理/列表

C语言学生成绩管理系统

C语言学生成绩管理系统

想要它变成什么样,自己做一下修改就是了:

#include<iostream>

#include<fstream>

#include <windows.h>

#include&ltstring>

#include <time.h>

#include<cstdlib>

#include<iomanip>

using namespace std

int n=0

#define M cout<<

#define N Sleep(80)

#define Y N M

#define NN cout<<"╭—————————————————————————————————————————————╮"<<endlcout<<"∣ num ∣ name∣ age ∣ hig ∣ 语文 ∣ 数学 ∣ 英语 ∣ 平均 ∣ 总分 ∣ 评语 ∣ "<<endlcout<<"├———-┼———-┼———┼———┼———-┼———-┼———-┼—————┼————┼———-┤"<<endlcout<<"∣"<<setw(6)<<p1->num<<setw(3)<<"∣"<<setw(7)<<p1->name<<setw(2)<<"∣"<<setw(4)<<p1->age<<setw(4)<<"∣"<<setw(4)<<p1->hig<<setw(4)<<"∣"<<setw(5)<<p1->score[0]<<setw(4)<<"∣"<<setw(5)<<p1->score[1]<<setw(4)<<"∣"<<setw(5)<<p1->score[2]<<setw(4)<<"∣"<<setw(8)<<setprecision(3)<<p1->ave<<setw(4)<<"∣"<<setw(6)<<p1->sum<<setw(4)<<"∣"<<setw(7)<<p1->p_y<<setw(2)<<"∣"<<endlcout<<"  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ "<<endl

////////////////////////////////////////////////////////////////////////////////////////////

////

////

////

////////////////////////////////////////////////////////////////////////////////////////////

class ji_ke_1_class

{

int num

char name[20]

int age

float hig

int score[3]

float ave

float sum

char p_y[10]

public:

void set_date()

void display()

void creat()

void print()

void insert()

void exchange(ji_ke_1_class *p1,ji_ke_1_class *p2)

void sort(int j)

void index(int q,char aa[20])

void del(int num)

void save()

void tongji()

void load()

class ji_ke_1_class *next

}

ji_ke_1_class *head,*p1,*p2,*p

void ji_ke_1_class::set_date ()

{

cout<<"学号_姓名_年龄_身高_"<<endl

cin>>num>>name>>age>>hig

cout<<"-----分数::语文_数学_英语_"<<endl<<" "

for(int i=0i<3i++)

cin>>score[i]

}

void ji_ke_1_class::display()

{

ji_ke_1_class *p

int i

for( p=head , i=0 i<n i++ , p=p->next )

cout<<"∣"

<<setw(6)<<p->num

<<setw(3)<<"∣"

<<setw(7)<<p->name

<<setw(2)<<"∣"

<<setw(4)<<p->age

<<setw(4)<<"∣"

<<setw(4)<<p->hig

<<setw(4)<<"∣"

<<setw(5)<<p->score[0]

<<setw(4)<<"∣"

<<setw(5)<<p->score[1]

<<setw(4)<<"∣"

<<setw(5)<<p->score[2]

<<setw(4)<<"∣"

<<setw(8)<<setprecision(3)<<p->ave

<<setw(4)<<"∣"

<<setw(6)<<p->sum

<<setw(4)<<"∣"

<<setw(7)<<p->p_y

<<setw(2)<<"∣"

<<endl

}

void ji_ke_1_class::print()

{

ji_ke_1_class *p0=head

cout<<"╭—————————————————————————————————————————————╮"<<endl

cout<<"∣ num ∣ name∣ age ∣ hig ∣ 语文 ∣ 数学 ∣ 英语 ∣ 平均 ∣ 总分 ∣ 评语 ∣ "<<endl

cout<<"├———-┼———-┼———┼———┼———-┼———-┼———-┼—————┼————┼———-┤"<<endl

p0->display()

cout<<"  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ "<<endl

}

void ji_ke_1_class::creat()

{

int m=0

float total=0

head=p2=p1=new ji_ke_1_class

p1->set_date()

while(p1->num!=0)

{

n=n+1

if(n==1)

head=p1

else

p2->next=p1

p2=p1

p1=new ji_ke_1_class

p1->set_date ()

}

p2->next=0

ji_ke_1_class *p=new ji_ke_1_class

for(p=head m<n p=p->next )

{

total=total+p->score[0]+p->score[1]+p->score[2]

p->sum=total

p->ave=total/3

cout<<p->sum<<"--------__"<<p->ave<<endl

if(p->ave>85) strcpy( p->p_y , "优秀" )

else if(p->ave>75) strcpy( p->p_y , "中等" )

else if(p->ave>60) strcpy( p->p_y , "及格" )

else strcpy( p->p_y , "不及格" )

total=0

m+=1

}

}

template<typename T1>

void exchang1(T1 &a,T1 &b)

{

int t

t=a

a=b

b=t

}

template<typename T2>

void exchang2(T2 &a,T2 &b)

{

float t

t=a

a=b

b=t

}

void ji_ke_1_class::exchange(ji_ke_1_class *p1,ji_ke_1_class *p2)

{

char t2[30],t1[10]

exchang1(p1->num,p2->num)

exchang1(p1->score[1],p2->score[1])

exchang1(p1->score[0],p2->score[0])

exchang1(p1->score[2],p2->score[2])

exchang2(p1->hig,p2->hig)

exchang2(p1->ave,p2->ave)

exchang2(p1->sum,p2->sum)

strcpy(t2,p1->name)

strcpy(p1->name,p2->name)

strcpy(p2->name,t2)

strcpy(t1,p1->p_y )

strcpy(p1->p_y ,p2->p_y )

strcpy(p2->p_y ,t1)

}

void ji_ke_1_class::sort(int j)

{

ji_ke_1_class *p1,*p2

int m,t

cout<<endl

for(p1=head , m=0 m<n-1 m++ , p1=p1->next)

for(p2=p1->next,t=m+1 t<n t++ , p2=p2->next)

{

if( (p1->num) > (p2->num) && j==1 ) exchange(p1,p2)

if( (p1->sum) < (p2->sum) && j==2 ) exchange(p1,p2)

}

print()

cout<<endl

}

void ji_ke_1_class::del(int num)

{

ji_ke_1_class *p1,*p2

if(head==0)

{

cout<<"nlist null!n"

goto end1

}

p1=head

while(num!=p1->num && p1->next!=0)

{

p2=p1

p1=p1->next

}

if(num==p1->num)

{

if(p1==head) head=p1->next

else p2->next=p1->next

cout<<"n"<<"恭喜你--deleted the:"<<num<<endl<<endl

n=n-1

}

else cout<<num<<"抱歉--好像没有这个数吧!!n"<<"nn"

end1:

}

void ji_ke_1_class::insert()

{

float total

ji_ke_1_class *pt=new ji_ke_1_class

ji_ke_1_class *p0,*p1,*p2

pt=new ji_ke_1_class

pt->set_date()

total=0

int i

for(i=0i<3i++)

total+=pt->score[i]

pt->sum=total

pt->ave=total/3

if(pt->ave>85) strcpy( pt->p_y , "优秀" )

else if(pt->ave>75) strcpy( pt->p_y , "中等" )

else if(pt->ave>60) strcpy( pt->p_y , "及格" )

else strcpy( pt->p_y , "不及格" )

p1=head

p0=pt

if(head==0)

{

head=p0

p0->next=0

}

else

{

while( (p0->num>p1->num)&&(p1->next!=0))

{

p2=p1

p1=p1->next

}

if(p0->num<=p1->num)

{

if(head==p1) head=p0

else p2->next=p0

p0->next=p1

}

else

{

p1->next=p0

p0->next=0

}

}

n=n+1

}

void ji_ke_1_class::index(int q,char aa[20])

{

ji_ke_1_class *p1=head

int m=0,j=0

int len,flag=1

int a[4]

for( m=0 m<n p1=p1->next , m++ )

{

a[0]=0a[1]=0a[2]=0a[3]=0

flag=1

a[0]=(int)( (p1->num)/1000 ) a[1]=(int)( (p1->num-a[0]*1000 )/100 )

a[2]=(int)( (p1->num-a[1]*100-a[0]*1000 )/10 ) a[3]=(int)( p1->num-a[1]*100-a[0]*1000-a[2]*10 )

for(int i=19 i>=0 i--)

{

if(aa[i]!=0)

len=i+1

}

int m[4],k=0,y=0,x=0,d=0

for(k=0k<4k++)

{

d=0

y=(int)aa[k]

for(x=48x<=57x++)

{

d++

if(x==y) m[k]=(d-1)

}

}

for(j=0 j<4 j++ )

{

if( a[j]!=m[j] )

flag=0

}

if( flag==1 && q==1 )

{

NN

break

}

if( p1->name[0]==aa[0] && p1->name[1]==aa[1] && p1->name[2]==aa[2] && q==2 )

{

NN

break

}

}

if( m==n ) cout<<"no the student"<<endl

}

int x[20]

string filename

void ji_ke_1_class::save()

{

int d,d1=0

int ii

cout<<endl<<"请输入存储路径(建议存入当前文件中的data_save中)(例 ---绝对路径:C:文件名文件名数据名 n "

<<" ---相对路径:save数据名 )"

<<endl

<<"路径为:"

string cc

cin>>cc

cout<<" ╭——————————————╮"<<endl<<"正在保存 "

for(ii=0ii<15ii++)

{

cout<<'20'

Sleep(15)

}

ifstream file1("程序必用",ios::binary)

( (char *)&d , sizeof(d) )

d1=(int)d+1

e()

string filename0,name_file

filename0=cc

name_file=filename0.c_str()

ofstream file2("程序必用",ios::binary)

e( (char *)&d1 , sizeof(d1) )

e()

ofstream file3("程序必用", ios::app|ios::out )

file3<<name_file.c_str ()<<" "

e()

ofstream outfile(cc.c_str(),ios::binary)

if(!outfile)

{

cerr<<"!!!!!"<<endl

abort()

}

e( (char *)&n , sizeof(n) )

ji_ke_1_class *p=head

for(int i=0i<ni++,p=p->next)

e( (char *)p,sizeof(ji_ke_1_class))

e()

for(ii=0ii<15ii++)

{

cout<<'20'

Sleep(15)

}

cout<<endl<<endl

cout<<"-----已成功保存!!!!!!"<<endl<<endl

}

void ji_ke_1_class::load()

{

int h1,h2

string qq,name[20],name0[20]

ifstream file("程序必用",ios::binary)

if(!file)

{

cerr<<"open error!!"<<endl

abort()

}

( (char *)&h1, sizeof(h1) )

h2=int(h1)

cout<<"共有以下 "<<h2<<" 个文件"<<endl

ifstream file0("程序必用",ios::in)

if(!file0)

{

cerr<<"open error!!"<<endl

abort()

}

for(int e=0e<h2e++)

{

if(e%2==0) cout<<endl

file0>>name[e]

name0[e]=name[e]

cout<<"第"<<e+1<<"个文件:"<<setw(16)<<(string)name0[e]<<" "

}

e()

cout<<endl

loop3:

cout<<endl<<"请输入路径(例 ---绝对路径:C:文件名文件名数据名 ---相对路径:save数据名)"<<endl

cout<<"路径为:"

string ccc

cin>>ccc

cout<<" ╭——————————————╮"<<endl<<"正在读取 "

int ii

for(ii=0ii<15ii++)

{

cout<<'20'

Sleep(15)

}

ifstream infile(ccc.c_str(),ios::binary)

int c

ji_ke_1_class t[60],*pp[60]

if(!infile)

{

cout<<endl<<"无此文件 1---重输 other---放弃"

cin>>c

if(c==1) goto loop3

else goto loop4

}

int nn,nnn

int i

( (char *)&nn , sizeof(nn) )

nnn=(int)nn

n=nnn

( (char *)&t[0] , sizeof(ji_ke_1_class) )

head=(ji_ke_1_class *)&t[0]

for(i=1 i<nnn i++)

{

( (char *)&t[i] , sizeof(ji_ke_1_class) )

pp[i]=(ji_ke_1_class *)&t[i]

if(i==1)

{

head->next=pp[1]

}

if(i!=1)

{

pp[i-1]->next=pp[i]

}

}

e()

for(ii=0ii<15ii++)

{

cout<<'20'

Sleep(15)

}

cout<<endl

cout<<endl<<"————————恭喜!!!成功装载,数据文件以可以使用"<<endl<<endl

loop4:

}

void ji_ke_1_class::tongji()

{

ji_ke_1_class *pm=head

int m,by=0,bz=0,bc=0,bj=0

for(pm=head , m=0 m<n m++ , pm=pm->next)

{

if( pm->ave >= 85 ) by++

if( pm->ave < 85 && pm->ave >=75 ) bz++

if( pm->ave >=60 && pm->ave < 75 ) bj++

if( pm->ave < 60 ) bc++

}

cout<<endl

<<"总计 "<<n<<" 人:"<<endl

<<" 优秀生人数:"<<setw(5)<<by<<setw(12)<<"优秀率为:"<<setw(6)<<setprecision(5)<<(double)by/n<<endl

<<" 中等生人数:"<<setw(5)<<bz<<setw(12)<<"中等率为:"<<setw(6)<<setprecision(5)<<(double)bz/n<<endl

<<" 及格生(60-75)人数:"<<setw(5)<<bj<<setw(12)<<"及格率为:"<<setw(6)<<setprecision(5)<<(double)bj/n<<endl

<<" 不及格人数为:"<<setw(5)<<bc<<setw(12)<<"不及格率为:"<<setw(6)<<setprecision(5)<<(double)bc/n<<endl<<endl

}

void bz()

{

system("cls")

M"欢"Y"迎"Y"使"Y"用"Y"本"Y"程"Y"序"Y"-"Y"-"Y"-"Y"-"Y"-"Y" 使"Y"用"Y"说"Y"明"Y":"Ncout<<endl<<endl

M"一"Y""Y"、"Y"建"Y"立"Y"自"Y"己"Y"的"Y"数"Y"据"Y"("Y"建"Y"议"Y"马"Y"上"Y"存"Y"储"Y"!"Y"!"Y")"Y"按"Y"提"Y"示"Y"操"Y"作"Y"即"Y"可"Y""Y"呵"Y"呵"Ncout<<endl<<endl

M"二"Y""Y"、"Y"注"Y"意"Y"事"Y"项"Y":"Y" 对"Y"链"Y"表"Y"("Y"数"Y"据"Y")"Y"若"Y"超"Y"过"Y"6"Y"0"Y"个"Y","Y"则"Y"请"Y"联"Y"系"Y""Y""Y"吕"Y""Y""Y"威"Y""Y""Y"___"Y"qq"Y":"Y"921963406"Y","Y"可"Y"免"Y"费"Y"赠"Y"送"Y"所"Y"需"Y"程"Y"序"Ncout<<endl<<endl

M"三"Y""Y"、"Y"建"Y"链"Y"表"Y"的"Y"最"Y"后"Y"使"Y"全"Y"为"Y"0"Y","Y"建"Y"表"Y"结"Y"束"Ncout<<endl<<endl

M"四"Y""Y"、"Y"因"Y"技"Y"术"Y"有"Y"限"Y","Y"清"Y"屏"Y"函"Y"数"Y"造"Y"成"Y"head"Y"丢"Y"失"Y""Y"慎"Y"用"Y"!"Y"!"Ncout<<endl<<endl<<" "

M"制"Y"作"Y"人"Y":"Y""Y""Y""Y""Y"吕"Y""Y""Y""Y""Y"威"Y""Y""Y""Y""Ncout<<endl<<endl

}

////////////////////////////////////////////////////////////////////////////////////////////

////

////

////////////////////////////////////////////////////////////////////////////////////////////

void mult()

{tm * tp

time_t t

cout<<"____________________________________________________________________________________________________n"

cout<<" ╭——————————————╮n"

<<" "

t=time(NULL)

tp=localtime(&t)

cout<<tp->tm_mon+1<<"-"<<tp->tm_mday<<"-"<<tp->tm_year+1900<<" "

cout<<tp->tm_hour<<":"<<tp->tm_min<<":"<<tp->tm_sec

cout<<" ∣ 菜单 ∣ n"

<<" ∣____________________________∣n"

<<" ∣ 0---创建数据 ∣n"

<<" ∣ ∣n"

<<" ∣ 1---按学号排序 ∣n"

<<" ∣ ∣n"

<<" ∣ 2---按分数排序 ∣n"

<<" ∣ ∣n"

<<" ∣ 3---删除一学生信息 ∣n"

<<" ∣ ∣n"

<<" ∣ 4---插入一学生信息 ∣n"

<<" ∣ ∣n"

<<" ∣ 5---检索一学生 ∣n"

<<" ∣ ∣n"

<<" ∣ 6---统计数据 ∣n"

<<" ∣ ∣n"

<<" ∣ 7---保存 ∣n"

<<" ∣ ∣n"

<<" ∣ 8---打开 ∣n"

<<" ∣ ∣n"

<<" ∣ 9---清屏 ∣n"

<<" ∣ ∣n"

<<" ∣ 10--帮助(建议先看) ∣n"

<<" ∣ other---quit ∣n"

<<" ∣ ∣n"

<<"  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄n"

}

void select()

{

int fl=0,a,num2

ji_ke_1_class aa

loop:

cout<<"What can I do for you ? ? ?(输入命令---数字) :"

cin>>a

switch(a)

{

case 0 :

{

cout<<"输入数据n"

t()

t()

goto loop

}

case 1 :

{

(1)

goto loop

}

case 2 :

{

(2)

goto loop

}

case 3 :

{

cout<<"num========"

cin>>num2

(num2)

goto loop

}

case 4 :

{

rt()

goto loop

}

case 5 :

{

char xx[20]={0}

cout<<"输入要查询的学生的学号 或 姓名:"

cin>>xx

if( xx[0]>=48 && xx[0]<=57 )

x(1,xx)

else

x(2,xx)

goto loop

}

case 6 :

{

ji()

goto loop

}

case 7 :

{

()

fl=1

goto loop

}

case 8 :

{

()

goto loop

}

case 9 :

{

ji_ke_1_class *nn=new ji_ke_1_class

head=nn

system("cls")//清屏造成head丢失-------------------------------------------------------

nn=head

mult()

goto loop

}

case 10 :

{

bz()

mult()

goto loop

}

default :

{

if(fl=0)

{

char f

cout<<"你想要储存吗y/N"

cin>>f

if(f=='y'||f=='y')

{

()

fl=1

goto loop

}

else goto end

}

else goto end

}

}

end:

}

void main()

{

int q2=0

ifstream file0("程序必用",ios::binary)

if(!file0)

{

e()

ofstream file1("程序必用",ios::binary)

e( (char *)&q2 , sizeof(q2) )

e()

goto loop5

}

e()

loop5:

mult()

select()

}