最近公司要開個新專案。所以重新安裝下電腦上的Cocoapods。具體的執行步驟如下 ，希望對大家有所幫助。

首先，開啟終端輸入視窗。(本文中出現的$都不需要輸入，只是為了方便大家知道哪個是命令)

檢查當前的gem source.

$ gem sources -l

如果沒有 任何的ruby源 命令列反饋提示為：command not found;   //這種情況一般表現在之前電腦上沒裝過Cocoapods的情況。

如果電腦上之前安裝過Cocoapods,命令列反饋提示為：

*** CURRENT SOURCES ***

https://rubygems.org/

*** CURRENT SOURCES ***

https://taobao.org/                       //這裡 這兩個地址為兩個不同地址的映象檔案。一個是ruby的映象檔案 一個是淘寶的映象檔案。

如果 你曾經安裝的是第一種情況下的映象檔案的話 ，建議刪除，重新安裝淘寶的映象檔案 （因為第一個網址被我大天朝無情遮蔽了 你們懂的 當然如果你有可用的VPN 應該也可以下載第一種，這裡我下載的是第二種）。

如果命令列 反饋出的是第一種情況 ：輸入命令

$gem sources --remove https://rubygems.org/  //移除ruby映象檔案

正常的命令列反饋為：

https://rubygems.org/ removed from sources

$gem sources -a https://ruby.taobao.org/ //安裝淘寶映象檔案（這裡注意：如果 你電腦上沒裝過Cocoapods 從這一步開始）

正常的命令列反饋為：

https://ruby.taobao.org/ added to sources

命令列執行：

$sudo gem install cocoapods      //執行安裝下載Cocoapods命令

如果 你電腦上有密碼  會叫你輸入密碼 注意 你輸入的密碼 預設是不顯示的 直接輸入密碼 回車即可

輸入密碼會等待一段時間 命令列反饋為：

liuxhdeMBP:~ liuxh$ sudo gem install cocoapods

Password:

Fetching: i18n-0.7.0.gem (100%)

Successfully installed i18n-0.7.0

Fetching: thread_safe-0.3.5.gem (100%)

Successfully installed thread_safe-0.3.5

Fetching: tzinfo-1.2.2.gem (100%)

Successfully installed tzinfo-1.2.2

Fetching: minitest-5.8.4.gem (100%)

Successfully installed minitest-5.8.4

Fetching: activesupport-4.2.5.2.gem (100%)

Successfully installed activesupport-4.2.5.2

Fetching: nap-1.1.0.gem (100%)

Successfully installed nap-1.1.0

Fetching: fuzzy_match-2.0.4.gem (100%)

Successfully installed fuzzy_match-2.0.4

Fetching: cocoapods-core-0.39.0.gem (100%)

Successfully installed cocoapods-core-0.39.0

Fetching: claide-0.9.1.gem (100%)

Successfully installed claide-0.9.1

Fetching: colored-1.2.gem (100%)

Successfully installed colored-1.2

Fetching: xcodeproj-0.28.2.gem (100%)

Successfully installed xcodeproj-0.28.2

Fetching: cocoapods-downloader-0.9.3.gem (100%)

Successfully installed cocoapods-downloader-0.9.3

Fetching: cocoapods-plugins-0.4.2.gem (100%)

Successfully installed cocoapods-plugins-0.4.2

Fetching: cocoapods-search-0.1.0.gem (100%)

Successfully installed cocoapods-search-0.1.0

Fetching: cocoapods-stats-0.6.2.gem (100%)

Successfully installed cocoapods-stats-0.6.2

Fetching: cocoapods-try-0.5.1.gem (100%)

Successfully installed cocoapods-try-0.5.1

Fetching: netrc-0.7.8.gem (100%)

Successfully installed netrc-0.7.8

Fetching: cocoapods-trunk-0.6.4.gem (100%)

Successfully installed cocoapods-trunk-0.6.4

Fetching: molinillo-0.4.4.gem (100%)

Successfully installed molinillo-0.4.4

Fetching: escape-0.0.4.gem (100%)

Successfully installed escape-0.0.4

Fetching: cocoapods-0.39.0.gem (100%)

Successfully installed cocoapods-0.39.0

Parsing documentation for i18n-0.7.0

Installing ri documentation for i18n-0.7.0

Parsing documentation for thread_safe-0.3.5

Installing ri documentation for thread_safe-0.3.5

Parsing documentation for tzinfo-1.2.2

Installing ri documentation for tzinfo-1.2.2

Parsing documentation for minitest-5.8.4

Installing ri documentation for minitest-5.8.4

Parsing documentation for activesupport-4.2.5.2

unable to convert "\x84" from ASCII-8BIT to UTF-8 for lib/active_support/values/unicode_tables.dat, skipping

Installing ri documentation for activesupport-4.2.5.2

Parsing documentation for nap-1.1.0

Installing ri documentation for nap-1.1.0

Parsing documentation for fuzzy_match-2.0.4

Installing ri documentation for fuzzy_match-2.0.4

Parsing documentation for cocoapods-core-0.39.0

Installing ri documentation for cocoapods-core-0.39.0

Parsing documentation for claide-0.9.1

Installing ri documentation for claide-0.9.1

Parsing documentation for colored-1.2

Installing ri documentation for colored-1.2

Parsing documentation for xcodeproj-0.28.2

Installing ri documentation for xcodeproj-0.28.2

Parsing documentation for cocoapods-downloader-0.9.3

Installing ri documentation for cocoapods-downloader-0.9.3

Parsing documentation for cocoapods-plugins-0.4.2

Installing ri documentation for cocoapods-plugins-0.4.2

Parsing documentation for cocoapods-search-0.1.0

Installing ri documentation for cocoapods-search-0.1.0

Parsing documentation for cocoapods-stats-0.6.2

Installing ri documentation for cocoapods-stats-0.6.2

Parsing documentation for cocoapods-try-0.5.1

Installing ri documentation for cocoapods-try-0.5.1

Parsing documentation for netrc-0.7.8

Installing ri documentation for netrc-0.7.8

Parsing documentation for cocoapods-trunk-0.6.4

Installing ri documentation for cocoapods-trunk-0.6.4

Parsing documentation for molinillo-0.4.4

Installing ri documentation for molinillo-0.4.4

Parsing documentation for escape-0.0.4

Installing ri documentation for escape-0.0.4

Parsing documentation for cocoapods-0.39.0

Installing ri documentation for cocoapods-0.39.0

21 gems installed                        //這一段程式碼 就是表示 你下載成功了 

$pod setup    //設定 cocoapods 

執行完這句 命令列提示為：

Setting up CocoaPods master repo  //這裡會停留一段時間 等待電腦設定完成即可。

當電腦設定完以後 會提示：

CocoaPods 1.0.0.beta.4 is available.

To update use: `gem install cocoapods --pre`

[!] This is a test version we'd love you to try.

For more information see http://blog.cocoapods.org

and the CHANGELOG for this version http://git.io/BaH8pQ.

Setup completed

如何使用CocoaPods：

1.在Xcode上新建一個工程，在終端中進入程式根目錄下，輸入：pod init

這裡會建立一個podfile檔案；

2.進入podfile檔案，可以利用命令，vi podfile ----> pod 'AFNetworking'-->esc --->shift + 雙擊Z ，這時退出並儲存了；（注:如果直接開啟檔案輸入pod ‘AFNetworking’可能會出錯,建議使用終端輸入）

3.輸入：pod install ,這時請耐心等待下載，等下載好。開啟工程 那麼這個庫就已經存在你的專案中了

5.啟動工程的時候選擇使用pod生成的那個工程名。

6.刪除cocoaPods中的某個類庫

如果自己不想使用某個類庫後，想刪除某個三方庫，那麼我們就需要重新配置podfile檔案，在podfile檔案中直接開啟，刪除對應的文字就可以解決掉，比如直接把pod ‘AFNetworking’刪除即可，然後執行pod install

7.刪除cocoaPods我如果覺得不想使用cocoaPods，我想刪除，那麼我需要刪除一下檔案

刪除工程資料夾下的Podfile、Podfile.lock和Pods資料夾。

刪除xcworkspace檔案。

開啟xcodeproj檔案，刪除專案中的libpods.a和Pods.xcconfig引用：