技術標籤：qt

//main.qml

import QtQuick 2.12
import QtQuick.Window 2.12

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")
    property double version: 1.2

    Text {
        id: m_txt
        width: 100
        height: 100
        text: qsTr("text" + " " + version)
    }
}
 

//main.qml

import QtQuick 2.12
import QtQuick.Window 2.12

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")
    property double version: 1.2

    Text {
        id: m_txt
        width: 100
        height: 100
        text: qsTr("text" + " " + version)
    }

//最後執行的程式碼段在omponent.onCompleted執行
    Component.onCompleted: {
        version = 2.3
    }
}