qt - Qml 项目无法编译，错误 'Expected token ` ，'

Question

Qt Creator 3.1.2 基于 Qt 5.3.1(MSVC 2010，32 位)。项目已导入 QmlProject 2.0这是我的程序，出现此错误。这个程序来自教程，它对他有用......所以我不确定那里有什么问题。

import QtQuick 2.0

Rectangle {
    id: rootTangle
    width: 360
    height: 360
    color: "red"
    hoverEnabled: true;


    Rectangle {
        id: blueRec
        color:  "blue"
        //opacity:    .50
        width: rootTangle.width/2
        height: rootTangle.width/6
        anchors.centerIn: rootTangle
        border.color: "black"
        border.width: 7
        rotation: 180
        radius: 20
        gradient: Gradient {
                GradientStop { position: 0.0; color: "#b0c5de" }
                GradientStop { position: 1.0; color: "blue" }
        }
    }

    Text {
        id: nazdarTxt
        anchors.centerIn: blueRec
        text: "Nazdar"
        clip: false
        visible: true
        font.family: "Times New Roman"
        font.bold: true
        //font.pixelSize: Math.round(blueRec.height/3)
        width: blueRec.width
        //wrapMode: Text.WordWrap

    }

    MouseArea {
        id: blueRecMouseArea
        hoverEnabled: true;
        onEntered: {
            blueRec.color: "brown"
        }

        anchors.rightMargin: 0
        anchors.bottomMargin: 0
        anchors.leftMargin: 1
        anchors.topMargin: 0
        anchors.fill: blueRec
        onClicked: {
            Qt.quit();

        }
    }

}

错误出现在第 46 行:onEntered: {
blueRec.color: "棕色"
}

Answer 1

问题出在颜色后面的冒号:

onEntered: {
    blueRec.color: "brown"
}

您应该更改为等号:

onEntered: {
    blueRec.color = "brown"
}

此外，矩形中没有 hoverEnabled，因此您需要将其删除或注释:

Rectangle {
    id: rootTangle
    width: 360
    height: 360
    color: "red"
    //hoverEnabled: true;

由于您已经为 blueRec 定义了渐变，因此更改其颜色没有任何效果，您应该更改渐变颜色:

onEntered: {
  blueRec.gradient.stops[0].color = "brown"
  blueRec.gradient.stops[1].color = "white"
}