#include"workermanager.h"
workermanager::workermanager() {
//文件不存在
ifstream ifs;
ifs.open(flname, ios::in);//读文件
if (!ifs.is_open()) {
cout << "文件不存在" << endl;
//初始化
this->mArray = NULL;
this->mnum = 0;
this->fileIsEmpty = true;
ifs.close();
return;
}
//文件存在但是无记录
char ch;
ifs >> ch;
if (ifs.eof()) {
cout << "文件夹为空" << endl;
this->fileIsEmpty = true;
this->mArray = NULL;
this->mnum = 0;
ifs.close();
return;
}
int num = this->getnum();
this->mnum = num;
}
//统计文件内人数
int workermanager::getnum() {
ifstream ifs;
ifs.open(flname, ios::in);
int id;
string name;
int did;
int num = 0;
while (ifs>>id&&ifs>>name&&ifs>>did)
{
num++;
}
ifs.close();
return num;
}
workermanager::~workermanager() {
if (this->mArray != NULL) {
delete[] this->mArray;
this->mArray = NULL;
}
}
void workermanager::save() {
ofstream ofs;
ofs.open(flname , ios::out | ios::binary);
for (int i = 0; i < this->mnum; i++) {
ofs<< this->mArray[i]->id << " "
<< this->mArray[i]->name << " "
<mArray[i]->pos << endl;
}
ofs.close();
}
void workermanager::QuickSort(int array[], int low, int high) {
int i = low;
int j = high;
if (i >= j) {
return;
}
int temp = array[low];
while (i != j) {
while (array[j] >= temp && i < j) {
j--;
}
while (array[i] <= temp && i < j) {
i++;
}
if (i < j) {
swap(array[i], array[j]);
}
}
//将基准temp放于自己的位置，（第i个位置）
swap(array[low], array[i]);
QuickSort(array, low, i - 1);
QuickSort(array, i + 1, high);
}
void workermanager::showmenu(){
cout << "********************************************" << endl;
cout << "********* 欢迎使用职工管理系统！ **********" << endl;
cout << "************* 0.退出管理程序 *************" << endl;
cout << "************* 1.增加职工信息 *************" << endl;
cout << "************* 2.显示职工信息 *************" << endl;
cout << "************* 3.删除离职职工 *************" << endl;
cout << "************* 4.修改职工信息 *************" << endl;
cout << "************* 5.查找职工信息 *************" << endl;
cout << "************* 6.按照编号排序 *************" << endl;
cout << "************* 7.清空所有文档 *************" << endl;
cout << "********************************************" << endl;
cout << endl;
}
void workermanager::exitmenu() {
cout << "按任意键退出" << endl;
system("pause");
exit(0);
}
void workermanager::showmessage()
{
if (this->fileIsEmpty) {
cout << "文件空" << endl;
}
else {
for (int i = 0; i mArray[i]->showinfo();
}
}
cout << "按任意键清屏" << endl;
system("pause");
system("cls");
}
int workermanager::IsExist(int id) {
//查无此人
int index = -1;
cout << "查无此人" << endl;
for (int i = 0; i < this->mnum; i++) {
if (id == this->mArray[i]->id) {
index = i;
}
}return index;
}
void workermanager::changemen()
{
//找到需要修改的员工
int id = 0;
cout << "请输入需要修改员工编号" << endl;
cin >> id;
int index = this->IsExist(id);
if (index != -1) {
delete this->mArray[index];
int id = 0;
string name;
int pos = 0;
cout << "请输入员工新编号" << endl;
cin >> id;
cout << "请输入员工新姓名" << endl;
cin >> name;
cout << "请选择新岗位" << endl;
cout << "1.牛马" << endl;
cout << "2.高级牛马" << endl;
cout << "3.资本家" << endl;
cin >> pos;
worker* wo = NULL;
while (pos < 1 || pos>3) {
switch (pos)
{
case 1:wo = new normal(id, name, 1);
break;
case 2:wo = new manager(id, name, 2);
break;
case 3:wo = new boss(id, name, 3);
break;
default:
cout << "输入错误，请重新选择岗位" << endl;
cout << "1.牛马" << endl;
cout << "2.高级牛马" << endl;
cout << "3.资本家" << endl;
cin >> pos;
break;
}
}
switch (pos)
{
case 1:wo = new normal(id, name, 1);
break;
case 2:wo = new manager(id, name, 2);
break;
case 3:wo = new boss(id, name, 3);
break;
}
this->mArray[index] = wo;
this->save();
cout << "修改成功" << endl;
}
else {
cout << "未能找到员工" << endl;
}
cout << "按任意键清屏" << endl;
system("pause");
system("cls");
return;
}
void workermanager::serchmen()
{
int id = 0;
cin >> id;
int index = this->IsExist(id);
this->mArray[index]->showinfo();
}
void workermanager::delmen()
{
cout << "请输入开除职工编号" << endl;
int id = 0;
cin >> id;
int index = this->IsExist(id);
if (index != -1) {
for (int i = index; i < this->mnum - 1; i++) {
this->mArray[i] = this->mArray[i + 1];
}
this->mnum--;
this->save();
}
else
{
cout << "删除失败未找到该id" << endl;
}
}
void workermanager::addmessage() {
int addnum = 0;
cout << "请输入添加人数" << endl;
cin >> addnum;
if (addnum > 0) {
int newsize = this->mnum + addnum;
worker** newspace = new worker * [newsize];
if (this->mArray != NULL) {
for (int i = 0; i < this->mnum; i++) {
newspace[i] = this->mArray[i];
}
}
for (int i = 0; i < addnum; i++) {
int id=0;
string name;
int pos=0;
cout << "请输入第" << i + 1 << "个新员工编号" << endl;
cin >> id;
cout << "请输入第" << i + 1 << "个新员工姓名" << endl;
cin >> name;
cout << "请选择"<"1.牛马" << endl;
cout << "2.高级牛马" << endl;
cout << "3.资本家" << endl;
cin >> pos;
worker* wo = NULL;
while (pos < 1 || pos>3) {
switch (pos)
{
case 1:wo = new normal(id, name, 1);
break;
case 2:wo = new manager(id, name, 2);
break;
case 3:wo = new boss(id, name, 3);
break;
default:
cout << "输入错误，请重新选择岗位" << endl;
cout << "1.牛马" << endl;
cout << "2.高级牛马" << endl;
cout << "3.资本家" << endl;
cin >> pos;
break;
}
}
switch (pos)
{
case 1:wo = new normal(id, name, 1);
break;
case 2:wo = new manager(id, name, 2);
break;
case 3:wo = new boss(id, name, 3);
break;
}
newspace[this->mnum + i] = wo;
}
delete[] this->mArray;
this->mArray = newspace;
this->mnum = newsize;
this->fileIsEmpty = false;
cout << "添加成功" << endl;
this->save();
system("pause");
system("cls");
}
else {
cout << "输入错误请重新输入" << endl;
system("pause");
system("cls");
}
}
当我没有在创建txt文件时候生成查询和修改功能都能正常生效，但是在我创建好txt文件后再次打开选择查询和修改功能就没有反应然后过几秒会自动关闭exe窗口，我感觉应该是读取上除了问题但是不知道怎么改希望大佬带一下小白谢谢！