{"id":183988,"date":"2024-11-10T09:24:19","date_gmt":"2024-11-10T01:24:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183988\/"},"modified":"2024-11-10T09:24:21","modified_gmt":"2024-11-10T01:24:21","slug":"%e4%bd%bf%e7%94%a8qt%e6%97%a5%e6%9c%9f%e9%81%b8%e6%93%87%e6%8e%a7%e4%bb%b6%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab-qt%e6%97%a5%e6%9c%9f%e9%81%b8%e6%93%87%e6%8e%a7%e4%bb%b6%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183988\/","title":{"rendered":"\u4f7f\u7528QT\u65e5\u671f\u9078\u64c7\u63a7\u4ef6\u67e5\u8a62\u6578\u64da\u5eab (qt\u65e5\u671f\u9078\u64c7\u63a7\u4ef6\u67e5\u8a62\u6578\u64da\u5eab)"},"content":{"rendered":"

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QT\u65e5\u671f\u9078\u64c7\u63a7\u4ef6\u6982\u8ff0<\/h2>\n

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\n#include <QApplication>\n#include <QWidget>\n#include <QVBoxLayout>\n#include <QDateEdit>\n#include <QPushButton>\n#include <QMessageBox>\n\nint main(int argc, char *argv[]) {\n    QApplication app(argc, argv);\n    \n    QWidget window;\n    QVBoxLayout *layout = new QVBoxLayout(&window);\n    \n    QDateEdit *dateEdit = new QDateEdit();\n    dateEdit->setCalendarPopup(true);\n    layout->addWidget(dateEdit);\n    \n    QPushButton *button = new QPushButton(\"\u67e5\u8a62\u6578\u64da\");\n    layout->addWidget(button);\n    \n    QObject::connect(button, &QPushButton::clicked, [&]() {\n        QDate selectedDate = dateEdit->date();\n        QMessageBox::information(nullptr, \"\u9078\u64c7\u7684\u65e5\u671f\", selectedDate.toString());\n    });\n    \n    window.setLayout(layout);\n    window.show();\n    \n    return app.exec();\n}\n<\/code><\/pre>\n
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\n#include <QSqlDatabase>\n#include <QSqlQuery>\n\nvoid queryDatabase(QDate date) {\n    QSqlDatabase db = QSqlDatabase::addDatabase(\"QSQLITE\");\n    db.setDatabaseName(\"events.db\");\n    \n    if (!db.open()) {\n        qDebug() << \"\u7121\u6cd5\u6253\u958b\u6578\u64da\u5eab\";\n        return;\n    }\n    \n    QSqlQuery query;\n    query.prepare(\"SELECT * FROM events WHERE event_date = :date\");\n    query.bindValue(\":date\", date);\n    \n    if (query.exec()) {\n        while (query.next()) {\n            QString eventName = query.value(\"event_name\").toString();\n            qDebug() << \"\u4e8b\u4ef6\u540d\u7a31:\" << eventName;\n        }\n    } else {\n        qDebug() << \"\u67e5\u8a62\u5931\u6557:\" << query.lastError().text();\n    }\n    \n    db.close();\n}\n<\/code><\/pre>\n
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\u7e3d\u7d50<\/h2>\n
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