职工管理系统（文件保存）

你的名字 2022-07-12 01:16 241阅读 0赞

今天，做了一个通讯录的文件保存，然后拿了这个职工管理系统再熟悉一下，感觉和通讯录差不多，唯一有点不同的就是c++和Linux c对文件操作的不同了。感觉文件操作掌握的还行了，除了C语言自带的文件操作（还没有练习）。

#ifndef _CONTROL_H_
    #define _CONTROL_H_
    #include <iostream>
    #include <string>
    #include <fstream>
    #include<windows.h> 
    
    using namespace std;
    
    typedef struct node
    {
    	string num;			//职工号
    	string name;			//名字
    	int    age;			//年龄
    	string x;			//性别     f为女  m为男
    	string yobi;			//邮编
    	string bum;			//部门
    	int    salary;		//工资
    	struct node *next;
    }Node;
    typedef struct node * PNode;
    
    class Control
    {
    public:
    	void jiemian();					//界面显示
    	void zhuce();						//注册职工
    	void xiugai();					//修改职工信息
    	void shanchu();					//删除职工信息
    	void chaxun();					//查询职工信息
    	void paiming();					//根据薪资排名
    	void pint();						//打印所有信息
    };
    
    #endif

#include "control.h"
    
    void Control::jiemian()
    {
    	system("cls"); 
    	cout<<"\n\n\n";
    	cout<<"\t\t\t**************************************\n";
    	cout<<"\t\t\t*        欢迎来到职工管理系统        *\n";
    	cout<<"\t\t\t*          1  注册新职工             *\n";
    	cout<<"\t\t\t*          2 修改职工信息            *\n";
    	cout<<"\t\t\t*          3 删除职工信息            *\n";
    	cout<<"\t\t\t*          4 查询职工信息            *\n";
    	cout<<"\t\t\t*          5 薪资排名顺序            *\n";
    	cout<<"\t\t\t*          6 浏览所有信息            *\n";
    	cout<<"\t\t\t**************************************\n";
    	cout<<"\n\n\t\t请输入您的选择：";
    }
    
    void Control::zhuce()
    {
    	PNode p = new Node;
    	system("cls"); 
    	cout<<"\n\n\n";
    	cout<<"\t\t\t请输入职工号：";
    	cin>>p->num;
    	cout<<"\n\t\t\t请输入名字：";
    	cin>>p->name;
    	cout<<"\n\t\t\t请输入年龄：";
    	cin>>p->age;
    	cout<<"\n\t\t\t请输入性别：";
    	cin>>p->x;
    	cout<<"\n\t\t\t请输入邮编：";
    	cin>>p->yobi;
    	cout<<"\n\t\t\t请输入部门：";
    	cin>>p->bum;
    	cout<<"\n\t\t\t请输入工资：";
    	cin>>p->salary;
    
    	ofstream out;
    	out.open("职工档案.txt", ios::out | ios::app);
    	if(!out)
    	{
    		cerr<<"open error!"<<endl;
    		return;
    	}
    	out.write((char*)p, sizeof(Node));
    
    	out.close();
    }
    
    void Control::xiugai()
    {
    	string str1;
    	int flag = 0;
    
    	system("cls"); 
    	cout<<"\n\n\n";
    	cout<<"\t\t\t请输入要修改人的职工号：";
    	cin>>str1;
    
    	ifstream in;
    	in.open("职工档案.txt", ios::in | ios::_Nocreate);
    	if(!in)
    	{
    		cerr<<"open error!"<<endl;
    		return;
    	}
    
    	PNode h = new Node;
    	PNode p = new Node;
    
    	if(in.read((char*) p, sizeof(Node)))
    	{
    		h->next = p;
    		while(1)
    		{
    			PNode t = new Node;
    
    			if (in.read((char*) t, sizeof(Node)))
    			{
    				p->next = t;
    				p = p->next;
    				continue;
    			}
    			else
    			{
    				p->next = h;
    				break;
    			}
    		}
    	}
    	else
    	{
    		cout<<"\n\n\n\n\n\n\t\t\t\t系统中暂时无人！"<<endl;
    		in.close();
    		return;
    	}
    	in.close();
    
    	PNode temp = h->next;
    	while(temp != h)
    	{
    		if(temp->num == str1)
    		{
    			flag = 1;
    			cout<<"\n\t\t\t请输入修改后的名字：";
    			cin>>temp->name;
    			cout<<"\n\t\t\t请输入修改后的年龄：";
    			cin>>temp->age;
    			cout<<"\n\t\t\t请输入修改后的性别：";
    			cin>>temp->x;
    			cout<<"\n\t\t\t请输入修改后的邮编：";
    			cin>>temp->yobi;
    			cout<<"\n\t\t\t请输入修改后的部门：";
    			cin>>temp->bum;
    			cout<<"\n\t\t\t请输入修改后的薪资：";
    			cin>>temp->salary;
    			break;
    		}
    
    		temp = temp->next;
    	}
    	if (flag)
    	{
    		Sleep(2);
    		system("cls");
    		cout<<"\n\n\n\n\n\n\t\t\t\t修改成功！"<<endl;
    	}
    	else
    	{
    		Sleep(2);
    		system("cls");
    		cout<<"\n\n\n\n\n\n\t\t\t\t查无此人！"<<endl;
    		return;
    	}
    
    	remove("职工档案.txt");
    	ofstream out;
    	out.open("职工档案.txt", ios::out | ios::app);
    	if(!out)
    	{
    		cerr<<"open error"<<endl;
    		return;
    	}
    
    	temp = h->next;
    	while (temp != h)
    	{
    		out.write((char*)temp, sizeof(Node));
    		temp = temp->next;
    	}
    	out.close();
    }
    
    void Control::shanchu()
    {
    	system("cls"); 
    	string str1;
    	int flag = 0;
    	cout<<"\n\n\n";
    	cout<<"\t\t\t请输入要删除人的职工号：";
    	cin>>str1;
    
    	ifstream in;
    	in.open("职工档案.txt", ios::in | ios::_Nocreate);
    	if(!in)
    	{
    		cerr<<"open error!"<<endl;
    		return;
    	}
    
    	PNode h = new Node;
    	PNode p = new Node;
    
    	if(in.read((char*) p, sizeof(Node)))
    	{
    		h->next = p;
    		while(1)
    		{
    			PNode t = new Node;
    
    			if (in.read((char*) t, sizeof(Node)))
    			{
    				p->next = t;
    				p = p->next;
    				continue;
    			}
    			else
    			{
    				p->next = h;
    				break;
    			}
    		}
    	}
    	else
    	{
    		cout<<"\n\n\n\n\n\n\t\t\t\t系统中暂时无人！"<<endl;
    		in.close();
    		return;
    	}
    	in.close();
    
    	PNode temp = h;
    	if(temp->next->next == h)           //一个结点的表
    	{
    		if(temp->next->num == str1)
    		{
    			PNode tmp = temp->next;
    			temp->next = h;
    			delete tmp;
    
    			remove("职工档案.txt");
    			ofstream outfile;
    			outfile.open("职工档案.txt", ios::out);
    			outfile.close();
    
    			system("cls");
    			cout<<"\n\n\n\n\n\n\t\t\t\t删除成功！"<<endl;
    			return;
    		}
    		else
    		{
    			system("cls");
    			cout<<"\n\n\n\n\n\n\t\t\t\t查无此人！"<<endl;
    			return;
    		}
    	}
    
    	while (temp->next != h)
    	{
    		if (temp->next->num == str1)
    		{
    			flag = 1;
    			PNode p = temp->next;
    			temp->next = p->next;
    			free(p);
    			break;
    		}
    		
    		temp = temp->next;
    	}
    
    	if(flag)
    	{
    		system("cls");
    		cout<<"\n\n\n\n\n\n\t\t\t\t删除成功！"<<endl;
    	}
    	else
    	{
    		system("cls");
    		cout<<"\n\n\n\n\n\n\t\t\t\t查无此人！"<<endl;
    		return;
    	}
    
    	remove("职工档案.txt");
    	ofstream out;
    	out.open("职工档案.txt", ios::out | ios::app);
    	if(!out)
    	{
    		cerr<<"open error"<<endl;
    		return;
    	}
    
    	temp = h->next;
    	while (temp != h)
    	{
    		out.write((char*)temp, sizeof(Node));
    		temp = temp->next;
    	}
    	out.close();
    }
    
    void Control::chaxun()
    {
    	system("cls"); 
    	string str1, str2;
    	int flag = 0;
    	cout<<"\n\n\n";
    	cout<<"\t\t\t请输入要查询的职工号：";
    	cin>>str1;
    	cout<<"\n\n\t\t\t请输入要查询的名字：";
    	cin>>str2;
    
    	ifstream in;
    	in.open("职工档案.txt", ios::in | ios::_Nocreate);
    	if(!in)
    	{
    		cerr<<"open error!"<<endl;
    		return;
    	}
    
    	PNode h = new Node;
    	PNode p = new Node;
    
    	if(in.read((char*) p, sizeof(Node)))
    	{
    		h->next = p;
    		while(1)
    		{
    			PNode t = new Node;
    
    			if (in.read((char*) t, sizeof(Node)))
    			{
    				p->next = t;
    				p = p->next;
    				continue;
    			}
    			else
    			{
    				p->next = h;
    				break;
    			}
    		}
    	}
    	else
    	{
    		cout<<"\n\n\n\n\n\n\t\t\t\t系统中暂时无人！"<<endl;
    		in.close();
    		return;
    	}
    	in.close();
    
    	PNode temp = h->next;
    	while (temp != h)
    	{
    		if(temp->num == str1 && temp->name == str2)
    		{
    			flag = 1;
    			cout<<"\n\n年龄："<<temp->age<<" 性别："<<temp->x<<" 邮编："<<temp->yobi<<" 部门："
    				<<temp->bum<<" 薪资："<<temp->salary<<endl;
    			break;
    		}
    		temp = temp->next;
    	}
    
    	if (flag == 0)
    	{
    		Sleep(2);
    		system("cls");
    		cout<<"\n\n\n\n\n\n\t\t\t\t查无此人！"<<endl;
    	}
    }
    
    void Control::paiming()
    {
    	ifstream in;
    	in.open("职工档案.txt", ios::in | ios::_Nocreate);
    	if(!in)
    	{
    		cerr<<"open error!"<<endl;
    		return;
    	}
    
    	PNode h = new Node;
    	PNode p = new Node;
    
    	if(in.read((char*) p, sizeof(Node)))
    	{
    		h->next = p;
    		while(1)
    		{
    			PNode t = new Node;
    
    			if (in.read((char*) t, sizeof(Node)))
    			{
    				p->next = t;
    				p = p->next;
    				continue;
    			}
    			else
    			{
    				p->next = h;
    				break;
    			}
    		}
    	}
    	else
    	{
    		cout<<"\n\n\n\n\n\n\t\t\t\t系统中暂时无人！"<<endl;
    		in.close();
    		return;
    	}
    	in.close();
    
    	PNode temp, max, n, m;
    	int i = 0;
    	n = h;
    	m = max = h->next;
    	while (n->next != h)			//大循环,控制循环次数//
    	{
    		temp = h->next;			//temp为下面找最大值的前节点所用,赋初值//
    		for (m = n->next; m != h; m = m->next)	//小循环,依次找出当前最大值//
    		{
    			if (max->salary > m->salary)
    			{
    				max = m;
    			}
    		}
    		while(temp->next != max)
    		{
    			temp = temp->next;
    		}
    		temp->next = max->next;
    		max->next = h->next;
    		h->next = max;
    		if(i == 0)
    		{
    			n = max;
    		}
    		max = n->next;
    		i++;
    	}
    
    	remove("职工档案.txt");
    	ofstream out;
    	out.open("职工档案.txt", ios::out | ios::app);
    	if(!out)
    	{
    		cerr<<"open error"<<endl;
    		return;
    	}
    
    	temp = h->next;
    	while (temp != h)
    	{
    		out.write((char*)temp, sizeof(Node));
    		temp = temp->next;
    	}
    	out.close();
    
    	pint();
    }
    
    void Control::pint()
    {
    	system("cls"); 
    	cout<<"\n\n\n";
    	ifstream in;
    	in.open("职工档案.txt", ios::in | ios::_Nocreate);
    	if(!in)
    	{
    		cerr<<"open error!"<<endl;
    		return;
    	}
    
    	PNode h = new Node;
    	PNode p = new Node;
    
    	if(in.read((char*) p, sizeof(Node)))
    	{
    		h->next = p;
    		while(1)
    		{
    			PNode t = new Node;
    
    			if (in.read((char*) t, sizeof(Node)))
    			{
    				p->next = t;
    				p = p->next;
    				continue;
    			}
    			else
    			{
    				p->next = h;
    				break;
    			}
    		}
    	}
    	else
    	{
    		cout<<"\n\n\n\n\n\n\t\t\t\t系统中暂时无人！"<<endl;
    		in.close();
    		return;
    	}
    
    	PNode temp = h->next;
    	while (temp != h)
    	{
    		cout<<"职工号："<<temp->num<<" 名字："<<temp->name<<" 年龄："<<temp->age<<" 性别："<<temp->x
    			<<" 邮编："<<temp->yobi<<" 部门："<<temp->bum<<" 薪资："<<temp->salary<<endl;
    		temp = temp->next;
    	}
    	in.close();
    }

#include "control.h"
    
    int main()
    { 
    	Control con;
    
    	char ecf;   //选项
    	char sel[10];
    
    	while(1)
    	{
    		con.jiemian();
    		cin>>ecf;
    
    		switch (ecf)
    		{
    			case '1':				//注册新职工
    			{
    				con.zhuce();
    				break;
    			}
    			case '2':				//修改职工信息
    			{
    				con.xiugai();
    				cout<<"\n\n\t\t输入任意键返回：";
    				cin>>sel;
    				break;
    			}
    			case '3':				//删除职工信息
    			{
    				con.shanchu();
    				cout<<"\n\n\t\t输入任意键返回：";
    				cin>>sel;
    				break;
    			}
    			case '4':				//查询职工信息
    			{
    				con.chaxun();
    				cout<<"\n\n\t\t输入任意键返回：";
    				cin>>sel;
    				break;
    			}
    			case '5':				//薪资排名顺序
    			{
    				con.paiming();
    				cout<<"\n\n\t\t输入任意键返回：";
    				cin>>sel;
    				break;
    			}
    			case '6':				//浏览所有信息
    			{
    				con.pint();
    				cout<<"\n\n\t\t输入任意键返回：";
    				cin>>sel;
    				break;
    			}
    			default:
    			{
    				system("cls");
    				cout<<"\n\n\n\n\n请输入1--6！"<<endl;
    				cout<<"\n\n\t\t输入任意键返回：";
    				cin>>sel;
    				break;
    			}
    		}
    	}
    	
    	return 0;
    }