c學生成績管理系統(tǒng)

1、#include#include #include#includeusing namespace std;聲明抽象類Person類class Personpublic:;/ 聲明學生信息類class Student:public Personpublic:Student() ;Student() ;void setnumber(int num)number=num;void setname(char *n)strcpy(name,n);void setgrade(char *g)strcpy(grade,g); int getnumber()return number;char *getnam

2、e()return name;char *getgrade()return grade;void setstudent()/ 輸入函數(shù)coutnumber;coutname;coutgrade;char name20;char grade20;/ 學生姓名/ 學生所在班級private:;int number;/ 學生學號/ 聲明成績類class Score public: ;float Score:total()Score() ;Score() ;void setenglish(float E)english=E;void setmath(float M)math=M;void setphy

3、sics(float P)physics=P;void setsports(float S)sports=S;void setcomputer(float C)computer=C;float getmath()return math;float getphysics()return physics;float getsports()return sports;float getcomputer()return computer;void setscore()/ 輸入函數(shù)coutenglish;cinmath;coutphysics;coutsports;coutcomputer;float

4、total();float english;float math;float physics;float sports;float computer;/ 計算學分績float getenglish()return english; cout請輸入數(shù)學成績：”;private: float zong;zong=english*2+math*4+physics*4+sports*1+computer*3;/ 聲明學生成績信息類class stuscore:public Student,public Scorepublic:;void stuscore:setstuscore()void menu(

5、);int func1(stuscore stusco);void func2(stuscore stusco,int m);void func3(stuscore stusco,int m);void func4(stuscore stusco,int m);void func5(stuscore stusco,int m);int i=-1;int f;int number;setstudent();setscore();/ 定義輸入函數(shù)stuscore() ;stuscore() ;void setstuscore();/輸入學生成績信息多重繼承return zong/14.0;void

6、 printf1()cout getnumber() getname() getenglish();void printf2()cout getnumber() getname() getmath();void printf3()cout getnumber() getname() getphysics();void prinft4()cout getnumber() getname() getsports();void printf5()cout getnumber() getname() getcomputer();void print()coutgetnumber()getname()g

7、etenglish()getmath() getphysics() getsports() getcomputer()endl;char name20;float english;float math;float physics;float sports;float computer;/主函數(shù)void main()/主菜單函數(shù)void menu()system(color D);cout歡迎進入學生成績管理系統(tǒng)！endl;cout*”endl;cout學生成績管理系統(tǒng)endl;cout*” endl;cout*1.學生成績錄入*endl;cout*2.學生成績查詢*endl;cout*3.學生

8、成績修改*endl;stuscore stusco20;int n;menu();coutn;while(1)switch(n)case 1:f=func1(stusco);break;case 2:func2(stusco,f);break;case 3:func3(stusco,f);break;case 4:func4(stusco,f);break;case 5:func5(stusco,f);break;case 7:exit(0);cout”請輸入17之間的數(shù)字endl;cout*4.單科所有學生成績查詢 *endl;cout*5.單科成績統(tǒng)計*endl;cout* (平均成績及各

9、個成績區(qū)間所占比例) *endl;cout*6.學生總成績排名*endl;cout*7.退出系統(tǒng)*endl;coutendl;/ 錄入成績函數(shù)int func1(stuscore stusco) char p;do/ 查詢成績函數(shù)void func2(stuscore stusco)int k;cout1按姓名查詢 endl;cout2 按學號查詢 endl;coutk;if(k=1)char n=y;int u10;while(n=y)int j=0;coutname;int t=0;for(;tf;t+)if(strcmp(name,stuscot.getname()=0)i+;stusc

10、oi.setstuscore();cout輸入成功！;cout是否還要繼續(xù)輸入(繼續(xù)輸入請按y,退出請按n):“p;while(p=y);return i+1;coutvv”沒有你要查詢的學生名字!；/沒有找到cinn;for(int b=O;bj;b+)t=ub;J+；ifO=0)coutvv”是否退出？退出請按nendl;coutvv”學號“vv“姓名“vv“英語“vv“數(shù)學“vv“物理“vv”體育 C+ ”vv，學分績 endl;coutif(k=2)char n=y;int j=0;coutvv”請輸入要查詢的學生的學號:；cinnumber;int t=0;while(n=y)stu

11、scot.getnumber()stuscot.getphysics()stuscot.getname()stuscot.getsports() stuscot.getenglish() stuscot.getmath()stuscot.getcomputer() stuscot.total()endl;coutvv”是否繼續(xù)查詢(繼續(xù)請按y,退出按n):endl;cinn;elset=ub;for(;tf;t+)if(number=stuscot.getnumber()COUtVV”學號“vv“姓名“vv“英語“vv“數(shù)學“vv“物理“vv“體育“vv“C+”vv，學分績 endl;cout

12、stuscot.getnumber()stuscot.getenglish() stuscot.getmath()stuscot.getphysics()stuscot.getcomputer() stuscot.total()endl;cout”是否繼續(xù)查詢(繼續(xù)t1按y,退出按n):n;elsecout沒有你要查詢的學生！;cout”是否退出？退出請按nn;/ 修改信息函數(shù)void func3(stuscore stusco,int m)int j=0,b20,r;int flag;char n=y;while(n=y)(coutnumber;flag=0;int d;for(int t=

13、0;tm;t+)if(number=stuscot.getnumber()dobj=t;cout”請選擇要修改的信息：endl;cout1.修改英語成績endl;stuscot.getname()stuscot.getsports()cout2.修改數(shù)學成 績endl;cout3.修改物理成績endl;cout4.修改體育成績endl;cout5.修改 C+臧績”endl;coutd;if(d=1)else if(d=2)else if(d=3)else if(d=4)else if(d=5)flag=1;j+;if(flag=0)coutcomputer;stuscot.setcompute

14、r(computer); coutsports;stuscot.setsports(sports);coutphysics;stuscot.setphysics(physics);coutmath;stuscot.setmath(math);coutenglish;stuscot.setenglish(english);while(d5);cout沒有您要找的學生！endl;coutn;elsecoutn;cout”修改后的學生成績：endl;cout學號姓名英語數(shù)學物理體育 C+ endl;for(int t=0;tj;t+)r=bt;stuscor.print();/單科所有學生成績查詢v

15、oid func4(stuscore stusco,int m)(cout1.英語endl;cout2.數(shù)學endl;cout3.物理endl;cout4.體育endl;cout5.C+”endl;coutendl;coutk;if(k=1)(for(int t=0;tm;t+)stuscot.printf1();int k;char n=y;while(n=y)else if(k=2)for(int t=0;tm;t+) stuscot.printf2();else if(k=3)for(int t=0;tm;t+) stuscot.printf3();else if(k=4)for(int

16、 t=0;tm;t+)stuscot.prinft4();else if(k=5)for(int t=0;tm;t+) stuscot.printf5();coutn;void func5(stuscore stusco,int m)(int k;float excellence;float well;float pass;float fail;cout1.英語endl;cout2.數(shù)學endl;cout3.物理endl;cout4.體育endl;cout5.C+”endl;coutendl;coutk;if(k=1)int exc=0,wel=0,pas=0,fai=0;(else if(k

17、=2)else if(k=3)for(int t=O;t=85) +exc;else if(stuscot.getphysics()=70) +wel;else if(stuscot.getphysics()=60) +pas;for(int t=O;t=85) +exc;else if(stuscot.getmath()=70) +wel;else if(stuscot.getmath()=60) +pas;else if(stuscot.getmath()60) +fai;excellence=exc/m;pass=pas/m;coutvv”數(shù)學成績統(tǒng)計結果為endl;coutvv”優(yōu)秀率

18、：excellenceendl;cout良好率：vvwellvvendl;coutvv”及格率：passendl;coutvv”不及格率：vvfailvvendl;for(int t=O;t=85) +exc;else if(stuscot.getenglish()=70) +wel;else if(stuscot.getenglish()=60) +pas;else if(stuscot.getenglish()60) +fai;excellence=exc/m;pass=pas/m;coutvv”英語成績統(tǒng)計結果為endl;coutvv”優(yōu)秀率：excellenceendl;cout良好率：vvwellvvendl;coutvv”及格率：passendl;coutvv”不及格率：vvfailvvendl;well=wel/m;fail=fai/m;well=wel/m;fail=fai/m;else if(stuscot.getphysics()60) +fai;excellence=exc/m;pass=pas/m;cout”物理成績統(tǒng)計結果為endl;cout優(yōu)秀率：excellenceendl;cout良好率：wellendl;cout及格率：passendl;cout不及格率：failendl;well=wel/