在协同开发iOS项目时，一般要忽略以下文件
# Xcode
#
# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore

# Build generated
build/
DerivedData

# Various settings
*.pbxuser
!default.pbxuser
*.mode1v3
!default.mode1v3
*.mode2v3
!default.mode2v3
*.perspectivev3
!default.perspectivev3
xcuserdata

# Other
*.xccheckout
*.moved-aside
*.xcuserstate
*.xcscmblueprint

# Obj-C/Swift specific
*.hmap
*.ipa

# CocoaPods
#
# We recommend against adding the Pods directory to your .gitignore. However
# you should judge for yourself, the pros and cons are mentioned at:
# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
#
# Pods/

# Carthage
#
# Add this line if you want to avoid checking in source code from Carthage dependencies.
# Carthage/Checkouts

Carthage/Build

# fastlane
#
# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 
# screenshots whenever they are needed.
# For more information about the recommended setup visit:
# https://github.com/fastlane/fastlane/blob/master/docs/Gitignore.md

fastlane/report.xml
fastlane/screenshots

# OSX hidden files
.DS_Store

# Windows hidden files
Thumbs.db

如果是在OSX系统下开发，还要忽略.DS_Store文件（如果开启了显示隐藏文件选项），同理Windows下也要忽略一些常见的隐藏文件，如Thumbs.db等