只读属性

此警告类别由 qmllint 拼写[read-only-property] 。

无法为只读属性赋值

发生了什么？

写入了一个只读属性。

为什么会这样？

当 QML 引擎看到写入只读属性时，会抛出 Type Error（类型错误）。

示例

import QtQuick

Item {
    id: root
    readonly property int someNumber: 10

    Component.onCompleted: {
        someNumber = 20  // not ok: TypeError: Cannot assign to read-only property
    }
}

要修复此警告，请移除对只读属性的写入，写入另一个非只读属性，或者移除只读修饰符（如果你是属性定义的作者）。

另请参阅 " 只读属性"。

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