前段時間mac重裝系統，所有軟件都清除了，下載從商店里面安裝Xcode 12.5.1版本，直接提示“要求mac os 11.0或更高版本，于是乎開始升級mac os，檢查更新并更新之后，最新版本就是macOS Catalina10.15.7，再也升不上去了，商店里面查看歷史版本均找不到下載或獲取的入口。折騰一番之后在官網下載了一個11.7版本的xcode。

官方下載地址導航

• 建議從官方導航里面去尋找需要的工具，需要登錄

https://developer.apple.com/download/all/?q=xcode

選擇下面地址進行下載

• 下載地址有可能存在官方刪除調整導致如下具體的下載地址無效或無法訪問，下面僅列出幾個

Command Line Tools for Xcode 13 beta 2 下載

This package enables UNIX-style development via Terminal by installing command line developer tools, as well as macOS SDK frameworks and headers. Many useful tools are included, such as the Apple LLVM compiler, linker, and Make. If you use Xcode, these tools are also embedded within the Xcode IDE.

Xcode 12.5.1 下載

This is the complete Xcode developer toolset for Apple Watch, Apple TV, iPhone, iPad, and Mac. It includes the Xcode IDE, iOS Simulator, and all required tools and frameworks for building iOS, watchOS, tvOS, and macOS apps.

Command Line Tools for Xcode 12.5.1 下載

This package enables UNIX-style development via Terminal by installing command line developer tools, as well as macOS SDK frameworks and headers. Many useful tools are included, such as the Apple LLVM compiler, linker, and Make. If you use Xcode, these tools are also embedded within the Xcode IDE.

Xcode 12.5 下載

This is the complete Xcode developer toolset for Apple Watch, Apple TV, iPhone, iPad, and Mac. It includes the Xcode IDE, iOS Simulator, and all required tools and frameworks for building iOS, watchOS, tvOS, and macOS apps.

Additional Tools for Xcode 12.5 下載

This package includes audio, graphics, hardware I/O, and other auxiliary tools. These tools include AU Lab, OpenGL Driver Monitor, OpenGL Profiler, Pixie, Quartz Debug, HomeKit Accessory Simulator, IO Registry Explorer, Network Link Conditioner, PacketLogger, Printer Simulator, 64BitConversion, Clipboard Viewer, Crash Reporter Prefs, Dictionary Development Kit, Help Indexer, and Modem Scripts.

Command Line Tools for Xcode 12.5 下載

This package enables UNIX-style development via Terminal by installing command line developer tools, as well as macOS SDK frameworks and headers. Many useful tools are included, such as the Apple LLVM compiler, linker, and Make. If you use Xcode, these tools are also embedded within the Xcode IDE.

Xcode 11.7 下載

This is the complete Xcode developer toolset for Apple Watch, Apple TV, iPhone, iPad, and Mac. It includes the Xcode IDE, iOS Simulator, and all required tools and frameworks for building iOS, watchOS, tvOS and macOS apps.

總結

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