kotlin中繼承父屬性使用構(gòu)造方法

1. 定義父類，給它兩個屬性：

abstract class AbstractResponseMessage {private var success = trueprivate var reason: String? = nullconstructor() {}constructor(success: Boolean, reason: String?) {this.success = successthis.reason = reason}
}

2. 子類繼承該父類，其中 success和reason為父類屬性：

class ChatResponseMessage : AbstractResponseMessage {var from: String = ""var content: String = ""constructor(from: String, content: String)constructor(success: Boolean, reason: String, from: String, content: String) : super(success, reason){this.from = fromthis.content = content}
}

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