This needs to be a struct, not a class.

这需要是一个，而不是一个类。

First you create a separate struct that implements IJob, like this.

首先，您创建一个实现 IJob 单独，如下所示。

Groups of variables like these can be bundled together into a Struct.

像这样变量组可以捆绑在一起成一个。

Let's take a look at this struct that's called a " node" .

让我来看看这个称“节点”。

Each struct implements the logic in the execute method, as we've already mentioned.

正如我已经提到，每个体都实现了执行方法中逻辑。

We'll use this to initialize our struct and then give it the data it needs to do its work.

我将使用它来初始化我，其提供完成工作所需数据。

The 680 bytes is important, because this struct here is exactly 680 bytes.

680 字节很重要，因这里这个正好是 680 字节。

We can even make arrays of structs that we define, which are automatically bundled together in memory.

我甚至可以创建我定义数组，它会自动捆绑在内存中。

It's basically just a C struct, a binary blob that is being thrown over a bulk endpoint to the device.

它基本上只是一个 C ，一个二进制 blob，通过批量端点被抛到设备上。

In Swift, we use both value and reference types, and while NSCoding supports classes, it doesn't work at all with structs or enums.

在 Swift 里，我会用到值类型和引用类型虽 NSCoding 支持 类（class）但它对（struct） 或者 枚举型（enum） 就无能力了。

But, the struct data structure can be used for building more complicated data structures that avoid these restrictions.

但是，struct 数据可用于建更复杂数据，从而避免这些限制。

Let's imagine we have three node structs saved in memory, at locations 1000, 1002 and 1008.

假设我在内存中保存了三个节点，位置分别 1000、1002 和 1008。

Using this struct, we can create a linked list, which is a flexible data structure that can store many nodes.

使用这个，我可以创建一个链表，它是一种灵活数据，可以存储很多节点。

This array of structs, like any other array, gets created at a fixed size that can't be enlarged to add more items.

与任何其他数组一样，此数组以固定大小创建，无法扩大以添加更多项。

If it received more than 680 bytes at this point, we receive the header already, that big struct, and parts of the payload already.

如果此时它收到超过 680 个字节，我已经收到了标头、那个大和部分有效负载。

You'll see shortly that a translation is just a struct.

您很快就会发现翻译只是一个体。

And this struct contains all the important things that the RCM code needs to know to verify that message, the signature of that message, and what it's supposed to do.

此包含 RCM 代码验证该消息、该消息签名以及它应该执行操作所需知道所有重要内容。

If we access, for example, J index of 0, we get back the whole struct stored there, and we can pull the specific account number and balance data we want.

例如，如果我访问 0 J 索引，我会取回存储在那里整个，并且我可以提取我想要特定帐号和余额数据。

So, a word like 'deconstruct' for example, the original word is 'construct' and that has a stress on the second syllable, 'construct' therefore, we keep that 'struct' stressed and we get 'deconstruct', so, 'construct', 'deconstruct'.

例如，像“deconstruct”这个单词，原始单词是“construct”，它重读在第二个音节，“construct”，所以，在“deconstruct”中我重读还是在“struct”这里，所以，“construct”，“deconstruct”。