Cocoapods

sudo bash < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )(安装rvm)

rvm install 2.0.0

rvm use 2.0.0 --default

sudo gem install cocoapods

pod setup

pod search JSONKit

cd xxx

sudo touch Podfile

sudo vi Podfile

platform :ios
pod 'JSONKit'

(按A开始编辑,保存先按esc,然后再按住shift同时按两次Z,保存退出.不想保存,按过esc后,输入quit!.然后回车)

pod install