C++课程设计——学生信息管理系统

1、附录：程序代码#include<iostream>#include<fstream>#include<string>#include<iomanip>using namespace std;#define M 200 /可以存信息总量int N=0; /学生总量class studentpublic:student();void set(); /初始化信息，第一次对信息的录入void add(); /添加学生信息void del(); /删除某学生信息void change(); /修改某学生信息 void search(); /查询某学生信息v

2、oid display(); /显示全部学生信息private:static int num;string name,sex,politic,address;int student:num=110;student:student() /初始化文件void student:set()int i;string setname,setsex,setpolitic,setaddress;ofstream outfile;outfile.open("f1.txt",ios:out); /-打开文件-if(!outfile)cerr<<" open error&q

3、uot;<<endl; exit(1);/-依次录入相应个数的学生信息-for(i=0;i<M;i+)cout<<"当姓名输入为'0'时，停止输入！"<<endl;cout<<"请输入姓名："<<endl;cin>>setname; name=setname;if(setname="0") break;if(setname!="0")N+;num+; outfile<<num<<" &qu

4、ot; outfile<<setname<<" " cout<<"请输入性别："<<endl; cin>>setsex; sex=setsex; outfile<<setsex<<" " cout<<"请输入政治面貌："<<endl; cin>>setpolitic; politic=setpolitic; outfile<<setpolitic<<" "

5、; cout<<"请输入家庭住址："<<endl; cin>>setaddress; address=setaddress; outfile<<setaddress<<endl;outfile.close(); /-关闭文件-/添加文件void student:add()string addname,addsex,addpolitic,addaddress;/-以追加的方式录入信息，直接将信息追加到以前文件的末尾-ofstream outfile("f1.txt",ios:app);if(!ou

6、tfile) cerr<<" open error"<<endl; exit(1); N=N+1;/-依次输入相应的数据，并且追加到之前的文件中去-cout<<"请输入您要添加的数据"<<endl; num+; outfile<<num<<" "cout<<"请输入姓名："<<endl;cin>>addname;outfile<<addname<<" "cout&l

7、t;<"请输入性别："<<endl;cin>>addsex;outfile<<addsex<<" "cout<<"请输入政治面貌："<<endl;cin>>addpolitic;outfile<<addpolitic<<" "cout<<"请输入家庭住址："<<endl;cin>>addaddress;outfile<<addaddre

8、ss<<endl;outfile.close();cout<<"已添加成功！"<<endl;/删除文件void student:del()int k,i;int numM;string nameM,sexM,politicM,addressM;ifstream infile("f1.txt",ios:in);if(!infile)cerr<<" open error"<<endl;exit(1);for(i=0;i<N;i+)cout<<" &qu

9、ot;infile>>numi;cout<<setw(9)<<numi;infile>>namei;cout<<setw(9)<<namei;infile>>sexi;cout<<setw(9)<<sexi;infile>>politici;cout<<setw(9)<<politici;infile>>addressi;cout<<setw(9)<<addressi<<endl;cout<<

10、"你想删除第几个？"<<endl;cin>>k;k=k-1;infile.close();ofstream outfile("f1.txt",ios:out);if(!outfile)cerr<<" open error"<<endl; exit(1); /退出程序/-将数组存取的信息输出到文件中去-for(i=0;i<N;i+)if(i!=k)outfile<<numi<<" "outfile<<namei<<&

11、quot; "outfile<<sexi<<" "outfile<<politici<<" "outfile<<addressi<<" "<<endl;outfile.close();N=N-1;cout<<"已删除成功！"<<endl;/修改文件void student:change()int i,k;int numM;string nameM,sexM,politicM,addressM;ifs

12、tream infile("f1.txt",ios:in); if(!infile)cerr<<" open error"<<endl;exit(1);for(i=0;i<N;i+)cout<<" "infile>>numi;cout<<setw(9)<<numi;infile>>namei;cout<<setw(9)<<namei;infile>>sexi;cout<<setw(9)<<

13、;sexi;infile>>politici;cout<<setw(9)<<politici;infile>>addressi;cout<<setw(9)<<addressi<<endl;infile.close();ofstream outfile("f1.txt",ios:out);if(!outfile) cerr<<" open error"<<endl; exit(1); cout<<"你想修改第几个数据?"

14、;<<endl;cin>>k;k=k-1;cout<<"请输入新的数据："<<endl;cout<<"请输入姓名："<<endl;cin>>namek;cout<<"请输入性别："<<endl;cin>>sexk;cout<<"请输入政治面貌："<<endl;cin>>politick;cout<<"请输入家庭住址："<&l

15、t;endl;cin>>addressk;for(i=0;i<N;i+) outfile<<numi<<" "outfile<<namei<<" "outfile<<sexi<<" "outfile<<politici<<" "outfile<<addressi<<" "<<endl;outfile.close();cout<<&quo

16、t;已修改成功！"<<endl;/查询文件void student:search()int i,n,w=0,numM,aM;char ch;string searchname,nameM,sexM,politicM,addressM,bM4; cout<<"a.按学号查找 b.按姓名查找"<<endl;ifstream infile("f1.txt",ios:in); if(!infile)cerr<<" open error"<<endl;exit(1);for(

17、i=0;i<N;i+)infile>>numi;ai=numi;infile>>namei;bi0=namei;infile>>sexi;bi1=sexi;infile>>politici;bi2=politici;infile>>addressi;bi3=addressi;cout<<"请输入a或者b!"<<endl;cin>>ch; if(ch='a')cout<<"请输入学号！"<<endl;cin>&

18、gt;n;for(i=0;i<N;i+)if(ai=n)w=1;cout<<" 学号 姓名 性别 政治面貌 家庭住址"<<endl;cout<<" "cout<<setw(9)<<ai; cout<<setw(9)<<bi0; cout<<setw(9)<<bi1; cout<<setw(9)<<bi2; cout<<setw(9)<<bi3<<endl;if(w=0) cout&l

19、t;<"无此人信息！"<<endl;else if(ch='b')cout<<"请输入姓名！"<<endl;cin>>searchname;for(i=0;i<N;i+)if(namei=searchname)w=1;cout<<" 学号 姓名 性别 政治面貌 家庭住址"<<endl;cout<<" "cout<<setw(9)<<ai; cout<<setw(9)&l

20、t;<bi0; cout<<setw(9)<<bi1; cout<<setw(9)<<bi2; cout<<setw(9)<<bi3<<endl; if(w=0) cout<<"无此人信息！"<<endl;else cout<<"没有此选项！"<<endl;/显示文件void student:display()int k,num;string name,sex,politic,address;ifstream infi

21、le("f1.txt",ios:in); if(!infile)cerr<<" 0open error"<<endl;exit(1);cout<<" 学号 姓名 性别 政治面貌 家庭住址"<<endl;for(k=0;k<N;k+)cout<<" "infile>>num;cout<<setw(9)<<num;infile>>name;cout<<setw(9)<<name;in

22、file>>sex;cout<<setw(9)<<sex;infile>>politic;cout<<setw(9)<<politic;infile>>address;cout<<setw(9)<<address<<endl;infile.close();student stu;void main()char ch;void menu();menu();cin>>ch;while(ch!='0')system("cls");switch(ch)case &#