一、pod安装

macOS环境

 1、$ sudo gem install cocoapods   ||| 、$ sudo gem uninstall cocoapods

2、podfile文件

pod init  或 vim podfile

workspace  '../XXX.xcworkspace'

project    '../XXX.xcodeproj'

platform :ios,'9.0'

inhibit_all_warnings!

source 'https://github.com/CocoaPods/Specs.git'

source 'https://github.com/aliyun/aliyun-specs.git'

target 'DDYMarket' do

  pod'AFNetworking','4.0.1'

  pod'OpenUDID', '1.0.0'

  pod'FCUUID', '1.3.1'

  pod'Masonry', '1.1.0'

  pod'MJExtension'

  pod'UICKeyChainStore'

  pod'MJRefresh'

  pod'SDWebImage'

  pod'WebViewJavascriptBridge','6.0.3'

  pod'FMDB', '~> 2.7.5'

  pod'Toast', '~> 4.0.0'

end

i

esc 

:wq

3、pod install

4、$ open App.xcworkspace

5、#import <Reachability/Reachability.h>

二、绝对路径、相对路径

"$(SRCROOT)/当前工程名字/需要包含头文件所在文件夹"

“$(SRCROOT)”：替代当前工程所以的目录