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这篇“基于C++如何实现信息管理系统”文章的知识点大部分人都不太理解，所以小编给大家总结了以下内容，内容详细，步骤清晰，具有一定的借鉴价值，希望大家阅读完这篇文章能有所收获，下面我们一起来看看这篇“基于C++如何实现信息管理系统”文章吧。
1、使用类+函数实现
2、使用STL容器的vector
3、fstream的文件存储方式
4、xls文件读入 写出
5、数据的四大功能增删改查
6、一定的输入容错能力
#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]; //梁山好汉姓名
int age; //年龄
char loc[Num]; //籍贯
double bounty; //悬赏金
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 << "重新输入梁山好汉姓名 长度[0 - 20]" << endl;
return FALSE;
}
else
{
strcpy(name, _name);
return TRUE;
}
}
int LiangshanHeros::setAge(int _age)
{
if (_age > 100 || _age < 0)
{
cout << "重新输入年龄 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 << "重新输入梁山好汉籍贯 长度[0 - 20]" << endl;
return FALSE;
}
else
{
strcpy(loc, _loc);
return TRUE;
}
}
int LiangshanHeros::setprice(double the_Bouney)
{
if (the_Bouney < 0)
{
cout << "重新输入价格 大小[0 - &]" << endl;
return FALSE;
}
else
{
bounty = the_Bouney;
return TRUE;
}
}
void setAll(LiangshanHeros* par)
{
while (1)
{
cout << "输入梁山好汉姓名: " << endl;
char n[Num] = { 0 };
cin >> n;
if (par->setName(n) == TRUE) break;
}
while (1)
{
cout << "输入年龄: " << endl;
int a;
cin >> a;
if (par->setAge(a) == TRUE) break;
}
while (1)
{
cout << "输入梁山好汉籍贯: " << endl;
char l[Num] = { 0 };
cin >> l;
if (par->setLoc(l) == TRUE) break;
}
while (1)
{
cout << "输入赏金: " << 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 << "查找失败" << 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 << "删除成功 " << endl;
flag = 1;
}
}
if (flag == 0)
{
cout << "未找到该梁山好汉" << 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 << "请输入需要修改变量的值:" << endl;
cout << "1.梁山好汉姓名 2.年龄 3.籍贯 4.赏金" << endl;
int choice;
while (1)
{
cin >> choice;
if (choice > 4 || choice < 0) continue;
else break;
}
cout << "输入修改后的值" << endl;
switch (choice)
{
case 1:
{
while (1)
{
cout << "输入梁山好汉姓名: " << endl;
char n[Num] = { 0 };
cin >> n;
if (vec[i]->setName(n) == TRUE) break;
}
break;
}
case 2:
{
while (1)
{
cout << "输入年龄: " << endl;
int a;
cin >> a;
if (vec[i]->setAge(a) == TRUE) break;
}
break;
}
case 3:
{
while (1)
{
cout << "输入梁山好汉籍贯: " << endl;
char l[Num] = { 0 };
cin >> l;
if (vec[i]->setLoc(l) == TRUE) break;
}
break;
}
case 4:
{
while (1)
{
cout << "输入赏金: " << endl;
double p;
cin >> p;
if (vec[i]->setprice(p) == TRUE) break;
}
break;
}
}
flag = 1;
}
}
if (flag == 0)
{
cout << "未找到该梁山好汉" << endl;
}
}
void inputFile(vector<LiangshanHeros*>& vec)
{
ofstream ofs;
ofs.open(PATH, ios::ate | ios::binary);
int i = 0;
if (vec.size() < 0)
{
cout << "还未录入数据" << 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 << "数据录入成功 存储于 ./file.xls中" << endl;
ofs.close();
}
void outputFile(vector<LiangshanHeros*>& vec)
{
ifstream ifs;
ifs.open(PATH, ios::binary | ios::in);
if (ifs.fail()) {
cout << "文件未创建 请先录入数据" << endl;
return;
}
int i = vec.size();
int age;
double price;
char loc[Num] = { 0 };
char name[Num] = { 0 };
//判断是否为文件结尾
while (!ifs.eof())
{
LiangshanHeros* par = new LiangshanHeros;
ifs >> par->name >> par->age >> par->loc >> par->bounty;
vec.push_back(par);
}
cout << "file.xls 文件读入成功 数据已写入" << endl;
ifs.close();
}
void showAllParam(vector<LiangshanHeros*>& vec)
{
int i = 0;
for (i = 0; i < vec.size(); i++)
{
cout << "这是 第" << i + 1 << "位梁山好汉 :" << endl;
cout << " 姓名 :" << vec[i]->name << endl;
cout << " 年龄 :" << vec[i]->age << endl;
cout << " 籍贯 :" << vec[i]->loc << endl;
cout << " 赏金 :" << 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基于梁山好汉的文件存储系统\n");
SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_RED);
printf("〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n");
printf("\t丨 1.添加梁山好汉 \n");
printf("\t丨 2.查找梁山好汉 \n");
printf("\t丨 3.删除梁山好汉 \n");
printf("\t丨 4.修改梁山好汉信息 \n");
printf("\t丨 5.读取已存在信息 \n");
printf("\t丨 6.保存信息 \n");
printf("\t丨 7.查阅所有信息 \n");
printf("\t丨 8.退出 \n");
SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_RED);
printf("〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n\t");
SetConsoleTextAttribute(hout, FOREGROUND_INTENSITY | FOREGROUND_BLUE);
printf("输入您的选择(1-8):");
}
int main()
{
system("mode con cols=135 lines=30");//控制台 宽度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("输入查找的梁山好汉名称:");
cin >> name;
search(vec, name);
break;
}
case 3:
{
printf("输入删除的梁山好汉名称:");
cin >> name;
deletePar(vec, name);
break;
}
case 4:
{
printf("输入查找的梁山好汉名称:");
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;
}以上就是关于“基于C++如何实现信息管理系统”这篇文章的内容，相信大家都有了一定的了解，希望小编分享的内容对大家有帮助，若想了解更多相关的知识内容，请关注亿速云行业资讯频道。
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