Swift 包管理器 - Swift 4 语法

使用 Swift 包管理器是一种方便、高效的方式来管理和组织 Swift 项目中的依赖关系。Swift 包管理器是 Swift 语言的官方依赖管理工具，自 Swift 3.0 版本开始引入，它提供了一种统一的方式来创建、共享和管理 Swift 代码库。

mkdir MyPackage
cd MyPackage

swift package init

swift
// swift-tools-version:5.3
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription
let package = Package(
    name: "MyPackage",
    platforms: [
        .macOS(.v10_15),
        .iOS(.v13),
    ],
    products: [
        .library(
            name: "MyLibrary",
            targets: ["MyLibrary"]),
    ],
    dependencies: [
        .package(url: "https://github.com/Alamofire/Alamofire.git", from: "5.4.3"),
    ],
    targets: [
        .target(
            name: "MyLibrary",
            dependencies: ["Alamofire"]),
        .testTarget(
            name: "MyLibraryTests",
            dependencies: ["MyLibrary"]),
    ]
)

swift
dependencies: [
    .package(url: "https://github.com/Alamofire/Alamofire.git", from: "5.4.3"),
]

swift build

swift test

swift
dependencies: [
    .package(url: "https://github.com/YourUsername/MyPackage.git", from: "1.0.0"),
]

swift
import Alamofire
func fetchData() {
    AF.request("https://api.example.com/data").responseJSON { response in
        switch response.result {
        case .success(let data):
            print(data)
        case .failure(let error):
            print(error)
        }
    }
}