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56 lines
1.4 KiB
56 lines
1.4 KiB
#include "number_of_car.h"
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#include "ui_number_of_car.h"
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#include <QSqlQuery>
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#include <QNetworkRequest>
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#include <QDebug>
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#include <QMessageBox>
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#include <QMovie> // 包含QMovie的头文件
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number_of_car::number_of_car(QWidget *parent) : QDialog(parent),
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ui(new Ui::number_of_car)
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{
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ui->setupUi(this);
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this->setWindowTitle("车场信息");
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//动图
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QMovie *movie = new QMovie(":/car.png");
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ui->label_3->setMovie(movie);
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movie->start();
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this->setWindowFlags(Qt::WindowCloseButtonHint | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint);
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}
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number_of_car::~number_of_car()
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{
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delete ui;
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}
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void number_of_car::on_pushButton_clicked()
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{
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this->close();
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}
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void number_of_car::cnt_slot()
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{
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// 使用在 main 中创建的数据库连接，获取当前车场内车辆数
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QSqlDatabase db = QSqlDatabase::database("text01");
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if (!db.isOpen()) {
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QMessageBox::warning(this, tr("警告！"), tr("数据库未打开！"), QMessageBox::Yes);
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return;
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}
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QString str = QString("select * from cnt where number='%1' ").arg("number_of_c");
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QSqlQuery query(db);
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query.exec(str);
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query.next();
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int cnt = query.value(1).toInt();
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QString cnt_str_1 = QString::number(cnt);
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QString cnt_str_2 = QString::number(100 - cnt);
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// 显示信息
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ui->textBrowser->setText(cnt_str_1);
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ui->textBrowser_2->setText(cnt_str_2);
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}
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