Swift 包和模块有什么区别？
What is the difference between a Swift package and a module?
Swift有模块化代码，可以整理成模块
但是您可以使用 Swift 包管理器来获取和安装模块。
"Swift package"和"Swift module"有区别吗？我应该什么时候使用一个短语或另一个短语？
所述
Modules: Swift organizes code into modules. Each module specifies a namespace and enforces access controls on which parts of that code
can be used outside of the module.
A program may have all of its code in a single module, or it may
import other modules as dependencies. Aside from the handful of
system-provided modules, such as Darwin on macOS or Glibc on Linux,
most dependencies require code to be downloaded and built in order to
be used.
When you use a separate module for code that solves a particular
problem, that code can be reused in other situations. For example, a
module that provides functionality for making network requests can be
shared between a photo sharing app and a weather app. Using modules
lets you build on top of other developers’ code rather than
reimplementing the same functionality yourself.
Packages: A package consists of Swift source files and a manifest file. The manifest file, called Package.swift, defines the
package’s name and its contents using the PackageDescription module.
A package has one or more targets. Each target specifies a product and
may declare one or more dependencies.
Swift 包是源代码的集合...您可以将其视为一个独立的项目，它有自己的版本和存储库。 Swift 语言本身目前不了解包，它是仅由 Swift 包管理器使用的概念。
一个Swift包可以包含一个或多个Swift模块——每个Swift模块是语言所知道的东西，并且例如，Swift 模块定义了诸如访问控制 (public、internal、private) 之类的范围。 Swift 包还可以包含其他类型的目标或模块，例如它可以包含 C 源代码主体以构建到库中。
Swift 包在某种意义上类似于 Xcode 项目，Swift 模块类似于 Xcode 目标。
举个具体的例子https://github.com/apple/example-package-fisheryates
是一个 Swift 包 （由顶层的 Package.swift 表示），由其 URL 标识，它包含一个 Swift 模块有两个来源：
https://github.com/apple/example-package-fisheryates/tree/master/Sources.
Swift有模块化代码，可以整理成模块
但是您可以使用 Swift 包管理器来获取和安装模块。
"Swift package"和"Swift module"有区别吗？我应该什么时候使用一个短语或另一个短语？
Modules: Swift organizes code into modules. Each module specifies a namespace and enforces access controls on which parts of that code can be used outside of the module.
A program may have all of its code in a single module, or it may import other modules as dependencies. Aside from the handful of system-provided modules, such as Darwin on macOS or Glibc on Linux, most dependencies require code to be downloaded and built in order to be used.
When you use a separate module for code that solves a particular problem, that code can be reused in other situations. For example, a module that provides functionality for making network requests can be shared between a photo sharing app and a weather app. Using modules lets you build on top of other developers’ code rather than reimplementing the same functionality yourself.
Packages: A package consists of Swift source files and a manifest file. The manifest file, called Package.swift, defines the package’s name and its contents using the PackageDescription module.
A package has one or more targets. Each target specifies a product and may declare one or more dependencies.
Swift 包是源代码的集合...您可以将其视为一个独立的项目，它有自己的版本和存储库。 Swift 语言本身目前不了解包，它是仅由 Swift 包管理器使用的概念。
一个Swift包可以包含一个或多个Swift模块——每个Swift模块是语言所知道的东西，并且例如，Swift 模块定义了诸如访问控制 (public、internal、private) 之类的范围。 Swift 包还可以包含其他类型的目标或模块，例如它可以包含 C 源代码主体以构建到库中。
Swift 包在某种意义上类似于 Xcode 项目，Swift 模块类似于 Xcode 目标。
举个具体的例子https://github.com/apple/example-package-fisheryates
是一个 Swift 包 （由顶层的 Package.swift 表示），由其 URL 标识，它包含一个 Swift 模块有两个来源：
https://github.com/apple/example-package-fisheryates/tree/master/Sources.