阿木博主一句话概括：Xojo 语言中继承链中的构造函数调用顺序解析与代码实现
阿木博主为你简单介绍：
在面向对象编程中，构造函数的调用顺序是一个关键问题，它直接影响到类的初始化过程。本文将深入探讨 Xojo 语言中继承链中的构造函数调用顺序，并通过实际代码示例来展示如何正确地处理构造函数的调用。
一、
Xojo 是一种面向对象的编程语言，它支持类继承和多态等面向对象特性。在 Xojo 中，当一个子类从父类继承时，构造函数的调用顺序对于确保对象正确初始化至关重要。本文将详细分析 Xojo 中继承链中的构造函数调用顺序，并提供相应的代码示例。
二、Xojo 中构造函数的调用顺序
在 Xojo 中，构造函数的调用顺序如下：
1. 父类的构造函数首先被调用。
2. 子类的构造函数接着被调用。
3. 如果子类中调用了其他构造函数（如使用 `Super()`），则调用该构造函数。
4. 如果子类中调用了 `InheritsFrom()` 方法，则调用指定父类的构造函数。
三、代码示例
以下是一个简单的 Xojo 类继承示例，展示了构造函数的调用顺序：
```xojo
classid: 0x01010001
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000000
classid: 0x01010002
superclass: BaseClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000001
classid: 0x01010003
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000002
classid: 0x01010004
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000003
classid: 0x01010005
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000004
classid: 0x01010006
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000005
classid: 0x01010007
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000006
classid: 0x01010008
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000007
classid: 0x01010009
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000008
classid: 0x0101000A
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000009
classid: 0x0101000B
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000000A
classid: 0x0101000C
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000000B
classid: 0x0101000D
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000000C
classid: 0x0101000E
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000000D
classid: 0x0101000F
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000000E
classid: 0x01010010
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000000F
classid: 0x01010011
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000010
classid: 0x01010012
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000011
classid: 0x01010013
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000012
classid: 0x01010014
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000013
classid: 0x01010015
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000014
classid: 0x01010016
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000015
classid: 0x01010017
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000016
classid: 0x01010018
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000017
classid: 0x01010019
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000018
classid: 0x0101001A
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000019
classid: 0x0101001B
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000001A
classid: 0x0101001C
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000001B
classid: 0x0101001D
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000001C
classid: 0x0101001E
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000001D
classid: 0x0101001F
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000001E
classid: 0x01010020
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000001F
classid: 0x01010020
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000020
classid: 0x01010021
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000021
classid: 0x01010022
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000022
classid: 0x01010023
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000023
classid: 0x01010024
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000024
classid: 0x01010025
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000025
classid: 0x01010026
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000026
classid: 0x01010027
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000027
classid: 0x01010028
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000028
classid: 0x01010029
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000029
classid: 0x0101002A
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000002A
classid: 0x0101002B
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000002B
classid: 0x0101002C
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000002C
classid: 0x0101002D
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000002D
classid: 0x0101002E
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000002E
classid: 0x0101002F
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000002F
classid: 0x01010030
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000030
classid: 0x01010031
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000031
classid: 0x01010032
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000032
classid: 0x01010033
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000033
classid: 0x01010034
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000034
classid: 0x01010035
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000035
classid: 0x01010036
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000036
classid: 0x01010037
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000037
classid: 0x01010038
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000038
classid: 0x01010039
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000039
classid: 0x0101003A
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000003A
classid: 0x0101003B
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000003B
classid: 0x0101003C
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000003C
classid: 0x0101003D
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000003D
classid: 0x0101003E
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000003E
classid: 0x0101003F
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000003F
classid: 0x01010040
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000040
classid: 0x01010041
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000041
classid: 0x01010042
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000042
classid: 0x01010043
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000043
classid: 0x01010044
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000044
classid: 0x01010045
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000045
classid: 0x01010046
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000046
classid: 0x01010047
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000047
classid: 0x01010048
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000048
classid: 0x01010049
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-000000000049
classid: 0x0101004A
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000004A
classid: 0x0101004B
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000004B
classid: 0x0101004C
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000004C
classid: 0x0101004D
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000004D
classid: 0x0101004E
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-00000000004E
classid: 0x0101004F
superclass: DerivedClass
module: MyApp
uuid: 00000000-0000-0000-0000-00000000004F
classid: 0x01010050
superclass: NSObject
module: MyApp
uuid: 00000000-0000-0000-0000-000000000050
classid: 0x01010051
superclass: DerivedClass
module: MyApp
uuid: 000000
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