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這篇“基于C++如何實(shí)現(xiàn)信息管理系統(tǒng)”文章的知識(shí)點(diǎn)大部分人都不太理解,所以小編給大家總結(jié)了以下內(nèi)容,內(nèi)容詳細(xì),步驟清晰,具有一定的借鑒價(jià)值,希望大家閱讀完這篇文章能有所收獲,下面我們一起來(lái)看看這篇“基于C++如何實(shí)現(xiàn)信息管理系統(tǒng)”文章吧。
1、使用類+函數(shù)實(shí)現(xiàn)
2、使用STL容器的vector
3、fstream的文件存儲(chǔ)方式
4、xls文件讀入 寫出
5、數(shù)據(jù)的四大功能增刪改查
6、一定的輸入容錯(cuò)能力
#include <stdio.h> #include <stdlib.h> #include <math.h> #include <string.h> #include <iostream> #include <windows.h> #include <vector> #include <fstream> #include <iterator> #define Num 20 #define FALSE 0 #define TRUE 1 #define PATH "./file.xls" using namespace std; class LiangshanHeros { public: char name[Num]; //梁山好漢姓名 int age; //年齡 char loc[Num]; //籍貫 double bounty; //懸賞金 public: LiangshanHeros() { age = 18; bounty = 6666; } LiangshanHeros(char* _name, int _age, char* _loc, double the_bounty) { strcpy(name, _name); age = _age; strcpy(loc, _loc); bounty = the_bounty; } ~LiangshanHeros() { } public: char* getName(); char* getLoc(); double getBounty(); int getAge(); public: int setName(char*); int setAge(int); int setLoc(char*); int setprice(double); public: void showMenu(); }; class params : public LiangshanHeros { public : params() { } ~params() { } public: void InitSet(); void showMensu(); }; char* LiangshanHeros::getName() { return name; } char* LiangshanHeros::getLoc() { return loc; } double LiangshanHeros::getBounty() { return bounty; } int LiangshanHeros::getAge() { return age; } int LiangshanHeros::setName(char* _name) { if (strlen(_name) > 20 || strlen(_name) < 2) { cout << "重新輸入梁山好漢姓名 長(zhǎng)度[0 - 20]" << endl; return FALSE; } else { strcpy(name, _name); return TRUE; } } int LiangshanHeros::setAge(int _age) { if (_age > 100 || _age < 0) { cout << "重新輸入年齡 大小[0 - 100]" << endl; return FALSE; } else { age = _age; return TRUE; } } int LiangshanHeros::setLoc(char* _loc) { if (strlen(_loc) > 20 || strlen(_loc) < 2) { cout << "重新輸入梁山好漢籍貫 長(zhǎng)度[0 - 20]" << endl; return FALSE; } else { strcpy(loc, _loc); return TRUE; } } int LiangshanHeros::setprice(double the_Bouney) { if (the_Bouney < 0) { cout << "重新輸入價(jià)格 大小[0 - &]" << endl; return FALSE; } else { bounty = the_Bouney; return TRUE; } } void setAll(LiangshanHeros* par) { while (1) { cout << "輸入梁山好漢姓名: " << endl; char n[Num] = { 0 }; cin >> n; if (par->setName(n) == TRUE) break; } while (1) { cout << "輸入年齡: " << endl; int a; cin >> a; if (par->setAge(a) == TRUE) break; } while (1) { cout << "輸入梁山好漢籍貫: " << endl; char l[Num] = { 0 }; cin >> l; if (par->setLoc(l) == TRUE) break; } while (1) { cout << "輸入賞金: " << endl; double p; cin >> p; if (par->setprice(p) == TRUE) break; } } LiangshanHeros* set() { LiangshanHeros* par = new LiangshanHeros; //do set setAll(par); return par; } void search(vector<LiangshanHeros*>& vec, char* name) { int i = 0; int flag = 0; for (i = 0; i < vec.size(); i++) { if (strcmp(vec[i]->name, name) == 0) { cout << "查找成功 " << endl; cout << vec[i]->getName() << endl; cout << vec[i]->getAge() << endl; cout << vec[i]->getLoc() << endl; cout << vec[i]->getBounty() << endl; flag = 1; } } //case faild if (flag == 0) { cout << "查找失敗" << endl; } } void deletePar(vector<LiangshanHeros*>& vec, char* name) { int i = 0; int flag = 0; for (i = 0; i < vec.size(); i++) { if (strcmp(vec[i]->name, name) == 0) { cout << "查找成功 " << endl; cout << vec[i]->getName() << endl; cout << vec[i]->getAge() << endl; cout << vec[i]->getLoc() << endl; cout << vec[i]->getBounty() << endl; vec.erase(vec.begin() + i); //sp case i--; cout << "刪除成功 " << endl; flag = 1; } } if (flag == 0) { cout << "未找到該梁山好漢" << endl; } } void change(vector<LiangshanHeros*>& vec, char* name) { int i = 0; int flag = 0; for (i = 0; i < vec.size(); i++) { if (strcmp(vec[i]->name, name) == 0) { cout << "查找成功 " << endl; cout << vec[i]->getName() << endl; cout << vec[i]->getAge() << endl; cout << vec[i]->getLoc() << endl; cout << vec[i]->getBounty() << endl; cout << "請(qǐng)輸入需要修改變量的值:" << endl; cout << "1.梁山好漢姓名 2.年齡 3.籍貫 4.賞金" << endl; int choice; while (1) { cin >> choice; if (choice > 4 || choice < 0) continue; else break; } cout << "輸入修改后的值" << endl; switch (choice) { case 1: { while (1) { cout << "輸入梁山好漢姓名: " << endl; char n[Num] = { 0 }; cin >> n; if (vec[i]->setName(n) == TRUE) break; } break; } case 2: { while (1) { cout << "輸入年齡: " << endl; int a; cin >> a; if (vec[i]->setAge(a) == TRUE) break; } break; } case 3: { while (1) { cout << "輸入梁山好漢籍貫: " << endl; char l[Num] = { 0 }; cin >> l; if (vec[i]->setLoc(l) == TRUE) break; } break; } case 4: { while (1) { cout << "輸入賞金: " << endl; double p; cin >> p; if (vec[i]->setprice(p) == TRUE) break; } break; } } flag = 1; } } if (flag == 0) { cout << "未找到該梁山好漢" << endl; } } void inputFile(vector<LiangshanHeros*>& vec) { ofstream ofs; ofs.open(PATH, ios::ate | ios::binary); int i = 0; if (vec.size() < 0) { cout << "還未錄入數(shù)據(jù)" << endl; return; } for (i = 0; i < vec.size(); i++) { ofs << vec[i]->name << "\t" << vec[i]->age << "\t" << vec[i]->loc << "\t" << vec[i]->bounty; ofs << "\n"; } cout << "數(shù)據(jù)錄入成功 存儲(chǔ)于 ./file.xls中" << endl; ofs.close(); } void outputFile(vector<LiangshanHeros*>& vec) { ifstream ifs; ifs.open(PATH, ios::binary | ios::in); if (ifs.fail()) { cout << "文件未創(chuàng)建 請(qǐng)先錄入數(shù)據(jù)" << endl; return; } int i = vec.size(); int age; double price; char loc[Num] = { 0 }; char name[Num] = { 0 }; //判斷是否為文件結(jié)尾 while (!ifs.eof()) { LiangshanHeros* par = new LiangshanHeros; ifs >> par->name >> par->age >> par->loc >> par->bounty; vec.push_back(par); } cout << "file.xls 文件讀入成功 數(shù)據(jù)已寫入" << endl; ifs.close(); } void showAllParam(vector<LiangshanHeros*>& vec) { int i = 0; for (i = 0; i < vec.size(); i++) { cout << "這是 第" << i + 1 << "位梁山好漢 :" << endl; cout << " 姓名 :" << vec[i]->name << endl; cout << " 年齡 :" << vec[i]->age << endl; cout << " 籍貫 :" << vec[i]->loc << endl; cout << " 賞金 :" << vec[i]->bounty << endl; cout << endl; } } void LiangshanHeros::showMenu() { HANDLE hout = GetStdHandle(STD_OUTPUT_HANDLE);//句柄 SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_RED); printf("\t基于梁山好漢的文件存儲(chǔ)系統(tǒng)\n"); SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_RED); printf("〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n"); printf("\t丨 1.添加梁山好漢 \n"); printf("\t丨 2.查找梁山好漢 \n"); printf("\t丨 3.刪除梁山好漢 \n"); printf("\t丨 4.修改梁山好漢信息 \n"); printf("\t丨 5.讀取已存在信息 \n"); printf("\t丨 6.保存信息 \n"); printf("\t丨 7.查閱所有信息 \n"); printf("\t丨 8.退出 \n"); SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_RED); printf("〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n\t"); SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_BLUE); printf("輸入您的選擇(1-8):"); } int main() { system("mode con cols=135 lines=30");//控制臺(tái) 寬度135 高度20 HANDLE hout = GetStdHandle(STD_OUTPUT_HANDLE);//句柄 SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_RED); LiangshanHeros* par = new LiangshanHeros; par->showMenu(); vector<LiangshanHeros*> vec; char name[Num] = { 0 }; SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_RED); while (1) { int num; cin >> num; switch (num) { case 1: { vec.push_back(set()); cout << "添加成功" << endl; break; } case 2: { printf("輸入查找的梁山好漢名稱:"); cin >> name; search(vec, name); break; } case 3: { printf("輸入刪除的梁山好漢名稱:"); cin >> name; deletePar(vec, name); break; } case 4: { printf("輸入查找的梁山好漢名稱:"); cin >> name; change(vec, name); break; } case 5: { outputFile(vec); break; } case 6: { inputFile(vec); break; } case 7: { showAllParam(vec); break; } case 8: { cout << "kill process .. " << endl; exit(0); break; } } system("pause"); system("cls"); par->showMenu(); } return 0; }
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