1.cd进项目所在文件夹，并生成.gitignore文件

touch .gitignore

2.open .gitignore添加以下内容

# Xcode

#

# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore

# Mac OS X Finder and whatnot

.DS_Store

## Build generated

build/

DerivedData/

## Various settings

*.pbxuser

!default.pbxuser

*.mode1v3

!default.mode1v3

*.mode2v3

!default.mode2v3

*.perspectivev3

!default.perspectivev3

xcuserdata/

## Other

*.moved-aside

*.xcuserstate

*.xccheckout

## Obj-C/Swift specific

*.hmap

*.ipa

*.dSYM.zip

*.dSYM

#CocoaPods

Pods/

最后面的

#CocoaPods

Pods/是我们指定忽略pod文件