cocoapods

官网地址：https://cocoapods.org

sudo gem update –system  //首先更新gem,一般都很慢，毕竟服务器在国外
sudo gem install cocoapods // 安装cocoapods，此命令亦可用于升级cocoapods的版本
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platform :ios, '8.0'
use_frameworks!

target 'MyApp' do
  pod 'AFNetworking', '~> 2.6'
  pod 'ORStackView', '~> 3.0'
  pod 'SwiftyJSON', '~> 2.3'
end
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pod install