9.用C++中，文件和链表实现
#include <iostream> #include <string> #include <fstream> using namespace std; class staff { private: string employee_number;//职工号 string name;//姓名 int age;//年龄 string sex;//性别 string zip_code;//邮编 string department;//部门 int wage;//工资 class staff* next; public: staff():next(NULL){} void registration(class staff* head);//注册 尾插 void query_name(class staff* t);//按照姓名查询员工信息 void query_depart(class staff* t);//按照部门查询员工信息 void delete_num(class staff* t);//按工号删除员工信息 void delete_name(class staff* t);//按姓名删除员工信息 void show_all(class staff* head);//展示所有员工信息 void update(class staff* head); void update_num(class staff* head);//修改工号 void update_name(class staff* head);//修改姓名 void update_age(class staff* head);//修改年龄 void update_sex(class staff* head);//修改性别 void update_zip(class staff* head);//修改邮编 void update_depart(class staff* head);//修改部门 void update_wage(class staff* head);//修改工资 void update_all(class staff* head);//修改全部 void sort_up(class staff* head);//按工资升序排列 void sort_down(class staff* head);//按工资降序排列 int read(class staff* head); void write(class staff* t); }; void staff::registration(class staff* head) { while(head->next != NULL) { head = head->next; } staff* newnode = new staff; head->next = newnode; newnode->next = NULL; cout << "请输入员工信息" << endl; cout << "职工号: " << endl; cin >> newnode->employee_number; cout << "职工姓名: " << endl; cin >> newnode->name; cout << "职工年龄: " << endl; cin >> newnode->age; cout << "职工性别: " << endl; cin >> newnode->sex; cout << "职工邮编: " << endl; cin >> newnode->zip_code; cout << "职工部门: " << endl; cin >> newnode->department; cout << "职工工资: " << endl; cin >> newnode->wage; } void staff::show_all(class staff* head) { int i = 0; while(head->next != NULL) { i++; cout << i << "." << "工号：" ; cout << head->next->employee_number <<'\t'; cout << "名字："; cout << head->next->name <<'\t'; cout << "性别：" ; cout << head->next->sex <<'\t'; cout << "年龄：" ; cout << head->next->age <<'\t'; cout << "邮编：" ; cout << head->next->zip_code << '\t'; cout << "部门："; cout << head->next->department << '\t'; cout << "工资：" ; cout << head->next->wage << endl; head = head->next; } } void staff::query_name(class staff* t) { string n; cout << "请输入你想查询职工姓名:" << endl; cin >> n; int count = 0; while(t->next != NULL) { if(t->next->name == n) { cout << "工号：" ; cout << t->next->employee_number <<'\t'; cout << "名字："; cout << t->next->name <<'\t'; cout << "性别：" ; cout << t->next->sex <<'\t'; cout << "年龄：" ; cout << t->next->age <<'\t'; cout << "邮编：" ; cout << t->next->zip_code << '\t'; cout << "部门："; cout << t->next->department << '\t'; cout << "工资：" ; cout << t->next->wage << endl; count++; } t = t->next; } if(count == 0) { cout << "查无此人！" << endl; } } void staff::query_depart(class staff* t) { string n; cout << "请输入你想查询职工部门:" << endl; cin >> n; int count = 0; while(t->next != NULL) { if(t->next->department == n) { cout << "工号：" ; cout << t->next->employee_number <<'\t'; cout << "名字："; cout << t->next->name <<'\t'; cout << "性别：" ; cout << t->next->sex <<'\t'; cout << "年龄：" ; cout << t->next->age <<'\t'; cout << "邮编：" ; cout << t->next->zip_code << '\t'; cout << "部门："; cout << t->next->department << '\t'; cout << "工资：" ; cout << t->next->wage << endl; count++; } t = t->next; } if(count == 0) { cout << "查无此人！" << endl; } } void staff::delete_num(class staff* t) { string n; cout << "请输入你想删除职工号:" << endl; cin >> n; int count = 0; while(t->next != NULL) { if(t->next->employee_number == n) { staff* temp = t->next; t->next = t->next->next; delete temp; temp = NULL; cout << "删除成功！" << endl; count++; break; } t = t->next; } if(count == 0) { cout << "查无此人！" << endl; } } void staff::delete_name(class staff* t) { string n; cout << "请输入你想删除职工的姓名:" << endl; cin >> n; int count = 0; while(t->next != NULL) { if(t->next->name == n) { staff* temp = t->next; t->next = t->next->next; delete temp; temp = NULL; cout << "删除成功！" << endl; count++; break; } t = t->next; } if(count == 0) { cout << "查无此人！" << endl; } } void staff::update(class staff* head) { int num = 0; cout << "1.修改员工号" << endl; cout << "2.修改员工姓名" << endl; cout << "3.修改员工年龄" << endl; cout << "4.修改员工性别" << endl; cout << "5.修改员工邮编" << endl; cout << "6.修改员工部门" << endl; cout << "7.修改员工工资" << endl; cout << "8.修改全部" << endl; cin >> num; switch(num) { case 1: update_num(head); break; case 2: update_name(head); break; case 3: update_age(head); break; case 4: update_sex(head); break; case 5: update_zip(head); break; case 6: update_depart(head); break; case 7: update_wage(head); break; case 8: update_all(head); break; default: cout << "请重新输入正确的指令！" << endl; } } void staff::update_num(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout<< "输入新工号："<< endl; string temp2; cin>>temp2; head->next->employee_number = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_name(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout << "输入新名字："<< endl; string temp2; cin >> temp2; head->next->name = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_age(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout << "输入新年龄："<< endl; int temp2; cin >> temp2; head->next->age = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_sex(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout << "输入新性别："<< endl; string temp2; cin >> temp2; head->next->sex = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_zip(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout << "输入新邮编："<< endl; string temp2; cin >> temp2; head->next->zip_code = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_depart(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout << "输入新部门："<< endl; string temp2; cin >> temp2; head->next->department = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_wage(class staff* head) { cout << "输入要修改对象的工号："<< endl; int count = 0; string temp; cin >> temp; while(head->next != NULL) { if(temp == head->next->employee_number) { count = 1; cout << "输入新工资："<< endl; int temp2; cin >> temp2; head->next->wage = temp2; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::update_all(class staff* head) { cout<<"输入要修改对象的工号："<<flush; int count = 0; string tmp; cin >> tmp; while(head->next != NULL) { if(tmp == head->next->employee_number) { count = 1; cout << "输入新工号："<< endl; string temp; int tmp; cin >> temp; head->next->employee_number = temp; cout<< "输入新名字："<< endl; cin >> temp; head->next->name = temp; cout<< "输入新性别："<< endl; cin >> temp; head->next->sex = temp; cout<< "输入新年龄："<< endl; cin >> tmp; head->next->age = tmp; cout<< "输入新邮编："<< endl; cin >> temp; head->next->zip_code = temp; cout<< "输入新部门："<< endl; cin >> temp; head->next->department = temp; cout<< "输入新工资："<< endl; cin >> tmp; head->next->wage = tmp; cout << "修改成功" << endl; break; } head = head->next; } if(count == 0) { cout << "查无此人" << endl; } } void staff::sort_up(class staff* head) { while(head->next != NULL) { class staff* temp = head; while(temp->next != NULL) { if(head->next->wage > temp->next->wage) { int a; string b; a = head->next->wage; head->next->wage = temp->next->wage; temp->next->wage = a; b = head->next->employee_number; head->next->employee_number = temp->next->employee_number; temp->next->employee_number = b; b = head->next->name; head->next->name = temp->next->name; temp->next->name = b; b = head->next->sex; head->next->sex = temp->next->sex; temp->next->sex = b; a = head->next->age; head->next->age = temp->next->age; temp->next->age = a; b = head->next->zip_code; head->next->zip_code = temp->next->zip_code; temp->next->zip_code = b; b = head->next->department; head->next->department = temp->next->department; temp->next->department = b; } temp = temp->next; } head = head->next; } } void staff::sort_down(class staff* head) { while(head->next != NULL) { class staff* temp = head; while(temp->next != NULL) { if(head->next->wage < temp->next->wage) { int a; string b; a = head->next->wage; head->next->wage = temp->next->wage; temp->next->wage = a; b = head->next->employee_number; head->next->employee_number = temp->next->employee_number; temp->next->employee_number = b; b = head->next->name; head->next->name = temp->next->name; temp->next->name = b; b = head->next->sex; head->next->sex = temp->next->sex; temp->next->sex = b; a = head->next->age; head->next->age = temp->next->age; temp->next->age = a; b = head->next->zip_code; head->next->zip_code = temp->next->zip_code; temp->next->zip_code = b; b = head->next->department; head->next->department = temp->next->department; temp->next->department = b; } temp = temp->next; } head = head->next; } } int staff::read(class staff* head) { ofstream infile1; infile1.open("职工系统.txt",ios::app); if(!infile1) { return 0; } else { infile1.close(); ifstream infile; infile.open("职工系统.txt",ios::in); while(!infile.eof()) { staff* newnode = new staff; infile >> newnode->employee_number; if(newnode->employee_number.length() == 0) { delete newnode; break; } infile >> newnode->name; infile >> newnode->sex; infile >> newnode->age; infile >> newnode->zip_code; infile >> newnode->department; infile >> newnode->wage; head->next = newnode; head = head->next; } infile.close(); } return 0; } void staff::write(class staff* t) { ofstream outfile; outfile.open("职工系统.txt",ios::out); while(t->next != NULL) { outfile << t->next->employee_number <<'\t'; outfile << t->next->name << '\t'; outfile << t->next->sex << '\t'; outfile << t->next->age << '\t'; outfile << t->next->zip_code << '\t'; outfile << t->next->department << '\t'; outfile << t->next->wage << endl; t = t->next; } outfile.close(); } int main() { staff* head = new staff; head->read(head); string temp; cout << "欢迎来到Coder职工系统!" << endl; while(1) { cout << "------------------------------------" << endl; head->show_all(head); cout << "------------------------------------" << endl; cout << endl; cout << "1.注册员工信息" << endl; cout << "2.按照姓名查询员工信息" << endl; cout << "3.按照部门查询员工信息" << endl; cout << "4.按工号删除员工信息" << endl; cout << "5.按姓名删除员工信息" << endl; cout << "6.按工资升序排列" << endl; cout << "7.按工资降序排列" << endl; cout << "8.修改员工信息" << endl; cout << "0.退出" << endl; cout << endl; cout << "请输入你想选择的功能：" << endl; int number; cin >> number; switch(number) { case 1: { head->registration(head); break; } case 2: { head->query_name(head); break; } case 3: { head->query_depart(head); break; } case 4 : { head->delete_num(head); break; } case 5: { head->delete_name(head); break; } case 6: { head->sort_up(head); break; } case 7: { head->sort_down(head); break; } case 8: { head->update(head); break; } case 0: { head->write(head); return 0; } default: cout << "请重新输入正确的操作指令" << endl; } } }
