高程大作业学生管理系统,QT C++.zip

#include "mytableview.h" #include <QFileDialog> #include<QMessageBox> #include <QtAlgorithms> //实现排序 #include <iconv.h> #include <windows.h> myTableView::myTableView() { //初始化插入数据 this->setColumnCount(6); //设置列数为5 this->setRowCount(0); //设置行数为10 QStringList header; header<<"学号"<<"姓名"<<"性别"<<"出生年日"<<"籍贯"<<"住址"; this->setHorizontalHeaderLabels(header); stu_number = 0; //初始化学生信息 this->is_modify = false; //未曾修改 this->is_loaded = false; //判断是否是被加载 loaded_file.clear(); this->temp_dialog = nullptr; this->setEditTriggers(QAbstractItemView::NoEditTriggers); //设置为不可编辑 this->show(); stus.clear(); //清空这个数据结构 } myTableView::~myTableView() { //系统自动进行清空操作 } void myTableView::add_info() { this->temp_dialog = new Dialog(); this->temp_dialog->exec(); if(this->temp_dialog->is_ok_toadd() == true)//可以增加 { info_of_student temp = this->temp_dialog->get_newinput(); bool is_exist = false; for(int i = 0; i < this->stus.size(); i++) { if(this->stus[i]._Id == temp._Id) { is_exist = true; } //学号相同无法添加 } if(is_exist == false) { this->insertRow(stu_number); this->setItem(stu_number,0,new QTableWidgetItem(temp._Id)); this->setItem(stu_number,1,new QTableWidgetItem(temp._Name)); this->setItem(stu_number,2,new QTableWidgetItem(temp._Sex)); this->setItem(stu_number,3,new QTableWidgetItem(temp._Birth)); this->setItem(stu_number,4,new QTableWidgetItem(temp._Birthplace)); this->setItem(stu_number,5,new QTableWidgetItem(temp._Address)); this->stus.push_back(temp); //存进入temp //增加一行 stu_number++; qDebug()<<stu_number<<" "<<this->rowCount(); is_modify = true; //被修改了 } else { QMessageBox::warning(nullptr,tr("警告"),tr("学号相同无法添加!"),QMessageBox::Ok); } } } void myTableView::delete_info(int cur) { auto a = stus.begin(); for(int i = 0; i < this->stus.size(); i++) { if(this->item(cur,0)->text() == stus[i]._Id) { break; } a++; } this->stus.erase(a); //清除这一行数据 this->removeRow(cur); if(stu_number >= 1) { is_modify = true; //被修改了 stu_number--; } } void myTableView::modify_info(int cur) //修改信息 { this->temp_dialog = new Dialog(); //获取当前信息 info_of_student temp; temp._Id = this->item(cur,0)->text(); temp._Name = this->item(cur,1)->text(); temp._Sex = this->item(cur,2)->text(); temp._Birth = this->item(cur,3)->text(); temp._Birthplace = this->item(cur,4)->text(); temp._Address = this->item(cur,5)->text(); QString save_ID = temp._Id; //保存下来的save this->temp_dialog->set_info(temp); this->temp_dialog->exec(); if(this->temp_dialog->is_ok_toadd() == true)//可以增加 { info_of_student temp = this->temp_dialog->get_newinput(); if(temp._Id == save_ID) //没有改变学号 { this->setItem(cur,0,new QTableWidgetItem(temp._Id)); this->setItem(cur,1,new QTableWidgetItem(temp._Name)); this->setItem(cur,2,new QTableWidgetItem(temp._Sex)); this->setItem(cur,3,new QTableWidgetItem(temp._Birth)); this->setItem(cur,4,new QTableWidgetItem(temp._Birthplace)); this->setItem(cur,5,new QTableWidgetItem(temp._Address)); auto a = stus.begin(); for(int i = 0; i < this->stus.size(); i++) { if(this->item(cur,0)->text() == stus[i]._Id) { break; } a++; } *a = temp; } else //改变了学号 { bool is_exist = false; for(int i = 0; i < this->stus.size(); i++) { if(this->stus[i]._Id == temp._Id && temp._Id != save_ID) { is_exist = true; } //学号相同无法添加 } if(is_exist == false) { this->setItem(cur,0,new QTableWidgetItem(temp._Id)); this->setItem(cur,1,new QTableWidgetItem(temp._Name)); this->setItem(cur,2,new QTableWidgetItem(temp._Sex)); this->setItem(cur,3,new QTableWidgetItem(temp._Birth)); this->setItem(cur,4,new QTableWidgetItem(temp._Birthplace)); this->setItem(cur,5,new QTableWidgetItem(temp._Address)); auto a = stus.begin(); for(int i = 0; i < this->stus.size(); i++) { if(this->item(cur,0)->text() == stus[i]._Id) { break; } a++; } *a = temp; } else { QMessageBox::warning(nullptr,tr("警告"),tr("学号相同无法修改!"),QMessageBox::Ok); } } is_modify = true; //被修改了 } } void myTableView::sort_table(int row_num) { is_modify = true; //被修改了 if(row_num == 0) { this->sortItems(row_num); } else if(row_num == 1) { this->sortItems(row_num,Qt::SortOrder::AscendingOrder); } } void myTableView::saveTable(int way) { QString fileName; if(way == 0) //表示保存 { if(this->loaded_file.isEmpty() == true) { fileName = QFileDialog::getSaveFileName(nullptr,tr("保存文件"), tr("/root/Projects/product/bin/config/未命名.txt"), tr("file(*.txt )")); loaded_file = fileName; //记录下表格所存在的地址 } else { fileName = loaded_file; } } else if(way == 1) //表示另存为 { fileName = QFileDialog::getSaveFileName(nullptr,tr("保存文件"), tr("/root/Projects/product/bin/config/未命名.txt"), tr("file(*.txt )")); if(this->loaded_file.isEmpty() == true) loaded_file = fileName; //记录下表格所存在的地址 } if(!fileName.isEmpty()) { //将表格数据写入文件 if(QFileInfo(fileName).suffix().isEmpty()) { fileName.append(".xls"); } QFile file; file.setFileName(fileName); //打开文件 if(!file.open(QIODevice::WriteOnly | QIODevice::Text)) { QMessageBox msg; msg.setText("打开文件失败!"); msg.exec(); } else { this->is_modify = false; qDebug("open file success:::"); QTextStream out(&file); int rowCount = this->rowCount(); int colCount = this->columnCount(); //将表头写入文件 qDebug("saveTable start:::"); //读取单元格的数据并写入文件 qDebug()<<"row count:::"<<rowCount<<"col count:::"<<colCount; for(int row = 0; row < rowCount; row++) { for(int col = 0; col < colCount; col++) { QString text = this->item(row,col)->text(); qDebug()<<"text:::"<<text; if(text.isEmpty()) { out << "null" << "\t"; } else