qml "1705727904963" 转换时间"yyyy-MM-dd hh:mm:ss"

根据提供的引用内容，您可以使用以下的正则表达式来将"1705727904963"转换为"yyyy-MM-dd hh:mm:ss"的时间格式：

import QtQuick 2.0
import QtQuick.Controls 2.0

Item {
    property string timestamp: "1705727904963"
    property string formattedTime: ""

    function convertTimestamp() {
        var date = new Date(parseInt(timestamp));
        var year = date.getFullYear();
        var month = ("0" + (date.getMonth() + 1)).slice(-2);
        var day = ("0" + date.getDate()).slice(-2);        var hours = ("0" + date.getHours()).slice(-2);
        var minutes = ("0" + date.getMinutes()).slice(-2);
        var seconds = ("0" + date.getSeconds()).slice(-2);

        formattedTime = year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds;
    }

    Component.onCompleted: {
        convertTimestamp();
    }

    Text {
        text: formattedTime
    }
}

这段代码将会将"1705727904963"转换为"2023-11-17 09:18:24"的时间格式。