为什么gridlayouts超边界？？ - QTCN开发网

Window {
    visible: true
    width: 360
    height: 640
    title: qsTr("Hello World")

    GridLayout{

        anchors.left: parent.left

        columns: 9
        rows:16
        columnSpacing: 1
        rowSpacing: 1
        Label {
            text: qsTr("Type  :")
            Layout.column: 0
            Layout.row: 0
            Layout.columnSpan: 1
        }
        ComboBox{
            id:linearchoose
            Layout.row:0
            Layout.column: 1
            Layout.columnSpan: 8
            Layout.fillWidth: true

            textRole :"com_text"
            model: ListModel{
                ListElement{com_text:"default";min_scale:"0";max_scale:"100"}
                ListElement{com_text:"s7-200(0~32000)";min_scale:"0";max_scale:"32000"}

            }
            onActivated: {
                linearchoose.currentIndex=index

                text_inmin.text=model.get(index).min_scale
                text_inmax.text=model.get(index).max_scale

            }
        }

        Label {
            text: qsTr("Input :")
            Layout.row: 1
            Layout.column: 0
        }
        TextField {
            id:text_inmin
            placeholderText: "0"
            Layout.row: 1
            Layout.column: 1
            Layout.columnSpan: 3
        }
        TextField {
            id:text_inmax
            placeholderText: "100"
            Layout.row: 1
            Layout.column: 4
            Layout.columnSpan: 3
        }

        Label {
            text: qsTr("Output:")
            Layout.row: 2
            Layout.column: 0
        }
        TextField {
            id:text_outmin
            placeholderText: "0"
            Layout.row: 2
          Layout.column: 1
            Layout.columnSpan: 3
        }
        TextField {
            id:text_outmax
            placeholderText: "100"
            Layout.row: 2
            Layout.column: 4
            Layout.columnSpan: 3

        }

        Button{

            id:changebutton
            Layout.row: 1
            Layout.column: 7
            Layout.rowSpan: 2
            Layout.columnSpan: 2
            Layout.fillHeight: true
            Layout.fillWidth: true

        }

}
}