花了2天时间研究iPhone中锁屏图片和墙纸到底存放在哪个文件夹，最终终于找到是这2个文件：

Library/SpringBoard/LockBackground.cpbitmap

Library/SpringBoard/HomeBackground.cpbitmap

在此列出一些系统文件夹中的文件及用途：

Accessibility settings

Settings > General > Accessibility

Library/Preferences/com.apple.Accessibility.plist

Airplane Mode, WiFi, and Bluetooth

Also memorized WiFi networks

Library/Preferences/com.apple.preferences.network

Library/Preferences/com.apple.network.eapclient.tls.TrustExceptions.plist

SystemConfiguration/com.apple.network.identification.plist

SystemConfiguration/com.apple.wifi.plist

SystemConfiguration/preferences.plist

Calendar

Library/Calendar/*

Library/Preferences/com.apple.mobilecal

Call History

Library/CallHistory/*

Clock

Includes the current timezone, and World cities, timers, alarms, stopwatches

Library/Preferences/com.apple.mobiletimer.plist

Library/Preferences.com.apple.preferences.datetime.plist

Contacts

Library/AddressBook/*

Device name

SystemConfiguration/com.apple.mobilegestalt

FaceTime

Library/Preferences/com.apple.conference*

Keyboard Shortcuts

Settings > General > Keyboard > Shortcuts

Library/Keyboard/*

Language/Keyboard languages

Library/Preferences/.GlobalPreferences.plist

Library/Preferences/com.apple.Preferences.plist

Library/Preferences/com.apple.purplebuddy.plist

Location Services

Settings > Location Services

Library/locationd/*

Library/Preferences/com.apple.locationd.plist

Maps

Library/Maps/*

Library/Preferences/com.apple.Maps.plist

Music settings

Library/Preferences/com.apple.mobileipod.plist

Notes

Library/Notes/*

Library/Preferences/com.apple.mobilenotes.plist

Notification Center/Push Notification settings

Settings > Notifications

Library/BullitenBoard/*

Library/SpringBoard/PushStore/*

Library/SpringBoard/applicationstate.plist

Library/Preferences/com.apple.springboard.plist

Camera Roll

When replacing, you should delete all files in the respected folders first

Media/DCIM/*

Media/PhotoData/*

Library/Preferences/com.apple.mobileslideshow.plist

Homescreen icon layout

Note that this will be a different file if using a tweak like InfiniFolders

Library/SpringBoard/IconState.plist

Restrictions settings

Settings > General > Restrictions.

NOTE: This declares what is allowed by restrictions. If you are trying to bypass restrictions that have been set on you, just turn certain things to

Library/ConfigurationProfiles/PublicInfo/EffectiveUserSettings.plist

Library/ConfigurationProfiles/UserSettings.plist

Library/Preferences/com.apple.springboard.plist

Safari

Cookies, history, bookmarks, settings

Library/Cookies/Cookies.binarycookies

Library/Safari/*

Library/Preferences/com.apple.WebFoundation.plist

Safari homescreen bookmarks

Library/WebClips/*

Siri

Library/Preferences/com.apple.assistant*

SMS, MMS, iMessages, and iMessage/FaceTime settings

Library/Preferences/com.apple.imservice*

Library/Preferences/com.apple.madrid.plist

Library/Preferences/com.apple.MobileSMS.plist

Library/SMS/*

Sounds

Settings > Sounds

Library/Preferences/com.apple.preferences.sounds.plist

Library/Preferences/com.apple.springboard.plist

Stocks

Library/Preferences/com.apple.stocks.plist

Voice Memos

Media/Recordings/*

Voicemail

Library/Voicemail/*

Wallpaper

The HomeBackground files only exist if different from the LockBackground. CPBitmaps can be converted to PNG or JPEG with this handy website:

http://cpbitmap.cleverbyte.com.au/

Library/SpringBoard/LockBackground.cpbitmap

Library/SpringBoard/LockBackgroundThumbnail.jpg

Library/SpringBoard/HomeBackground.cpbitmap

Library/SpringBoard/HomeBackgroundThumbnail.jpg

Weather

Celcius/Fahrenheit, current city

Library/Preferences/com.apple.weather.plist

Here is some slightly more detailed information on each file for those that are interested.

keychain-backup.plist

Probably a backup of data stored in keychains-2.db, which stores various passwords such as WiFi, Passcode Lock, etc. (encrypted)

Library/AddressBook/AddressBook.sqlitedb

Contacts. These are the contacts which are in the "On my i[Pad/Phone/Pod touch]" group and are synced with iCloud, and are independent from contacts synced from mail accounts

Library/AddressBook/AddressBookImages.sqlitedb

-Contact images

Library/Accounts/Accounts3.sqlite

-Account info for the Calendars, Contacts,

App Store, and iTunes apps

Library/BullitenBoard/ClearedSections.plist

Logs the sections in Notification Center that have been recently "Clear"ed

Library/BullitenBoard/SectionInfo.plist

Notification settings for individual apps (Settings app > Notifications > [app name])

Library/BullitenBoard/SectionOrder.plist

The order of the items in Notification Center (Settings > Notifications)

Library/Caches/com.apple.WebAppCache/ApplicationCache.db

Related to data cached by websites

Library/Caches/locationd/clients.plist

Location settings for apps and System Services (Settings > Location Services)

Library/Caches/locationd/GyroCal.db

Gyroscope calibration

Library/Calendar/Calendar.sqlitedb

Calendar in its entirety

Library/Calendar/Extras.db

Extras for calendar

Library/CallHistory/call_history.db

Call history, including Phone and FaceTime

Library/ConfigurationProfiles/PublicInfo/EffectiveUserSettings.plist

Restrictions settings, such as which abilities are enabled (if restrictions are on)

Library/ConfigurationProfiles/UserSettings.plist

Appears to mirror EffectiveUserSettings.plist

Library/Cookies/com.apple.dataaccessd.[random string associated with an email account].binarycookies

Binary cookies for a specific email account

Library/Cookies/com.apple.itunesstored.2.sqlitedb

iTunes/App Store

cookies

Library/Cookies/Cookies.binarycookies

Safari's binary cookies

Library/DataAccess/AccountInformation.plist

Email data sync info

Library/DataAccess/ASFolders-[random string associated with an email account]

Plist containing folder info for a specific email account

Library/DataAccess/iCloud-[iCloud email account name]/.mboxCache.plist

iCloud email info

Library/DataAccess/iCloud-[iCloud email account name]/.OfflineCache/[number]

iCloud emails cached for offline

Library/itunesstored/itunesstored2.sqlitedb

iTunes/App Store

payment and download info

Library/itunesstored/itunesstored_private.sqlitedb

iTunes/App Store

info

Library/Keyboard/dynamic-text.dat

Appears to be a keylog, and then an alphabetical list of full words.

Library/Keyboard/UserDictionary.sqlite

User-managed autocorrections (Settings > General > Keyboard > Shortcuts)

Library/Keyboard/UserDictionaryWordKeyPairs.plist

Mirrors UserDictionary.sqlite in a different format and as a plist

Library/Mail/AutoFetchEnabled

Plist containing one true/false value of whether Fetch is enabled for Mail

Library/Maps/Bookmarks.plist

Maps bookmarks

Library/Maps/History.plist

Maps history

Library/Notes/notes.idx

Notes

Library/Notes/notes.sqlite

Notes

Library/Preferences/.GlobalPreferences.plist

International settings

Library/Preferences/AppBackup/

Created by AppBackup (a Cydia app for backing upp app data) if you use it, and contains app data backed up by it

Library/Preferences/com.[name of company].[name of service].plist

Settings for that service. These range from preferences in the Settings app to Cydia apps.

Library/Safari/Bookmarks.db

Safari bookmarks

Library/Safari/History.plist

Safari history

Library/Safari/SuspendState.plist

Suspended state of Safari, its multitasking is handled differently from most apps

Library/SMS/Attachments/[random string associated with an MMS]/[MMS file name].[extension]

An MMS file

Library/SMS/Attachments/[random string associated with an MMS]/[MMS file name]-preview-left.jpg

A preview/thumbnail of an MMS file

Library/SMS/sms.db

Messages, be they iMessages or texts

Library/SpringBoard/applicationstate.plist

App settings

Library/SpringBoard/DesiredIconState.plist

The

current

organization state of the icons on the home screen

Library/SpringBoard/IconState.plist

The last organization state of the home screen since boot, and is affected by DesiredIconState.plist and whatever is contained in /Applications and /var/mobile/Applications at boot

Library/SpringBoard/IconSupportState.plist

Acts as IconState.plist if you have IconSupport installed

Library/SpringBoard/LockBackground.cpbitmap

The lockscreen background, in the form of CPBitmap. Also used for the homescreen background if they are the same.

Library/SpringBoard/LockBackgroundThumbnail.jpg

Thumbnail of the lockscreen background, used in Settings > Wallpaper. Also used for the homescreen background thumbnail if they are the same.

Library/SpringBoard/HomeBackground.cpbitmap

The homescreen background, in the form of CPBitmap. Only exists if it is different from the lockscreen background.

Library/SpringBoard/HomeBackgroundThumbnail.jpg

Thumbnail of the homescreen background, used in Settings > Wallpaper. Only exists if HomeBackground.cpbitmap exists.

Library/SpringBoard/PushStore/com.[name of company].[name of app].pushstore

Plist containing push notification data for that app

Library/Voicemail/voicemail.db

Voicemail data

Library/WebClips/[random string associated with a homescreen bookmark].webclip/icon.png

Icon for a homescreen bookmark

Library/WebClips/[random string associated with a homescreen bookmark].webclip/Info.plist

Properties of a homescreen bookmark

Library/WebClips/[random string associated with a homescreen bookmark].webclip/startup.png

Splashscreen of a homescreen bookmark

Media/DCIM/[number1]APPLE/IMG_[number2].[extension]

Media file in the Camera Roll, be it photo, screenshot, video, or saved from elsewhere. Number1 is the number of the Camera Roll, which depends on how many Camera Rolls you've had and ranges from 100-999. Number2 is the chronological number of the file in the Camera Roll, which ranges from 0001-9999.

Media/PhotoData/Metadata/DCIM/[number >= 100]APPLE/IMG_[number of video in Camera Roll].JPG

Preview image of a video in the Camera Roll before you press the play button

Media/PhotoData/Metadata/DCIM/[number >= 100]APPLE/IMG_[number of video in Camera Roll].THM

Thumbnail of a video in the Camera Roll

Media/PhotoData/Metadata/PhotoData/Sync/[number >= 100]SYNCD/IMG_[number of video in Camera Roll].JPG

Corresponds to its parallel in Media/PhotoData/Metadata/DCIM/[number >= 100]APPLE/IMG_number of video in Camera Roll].JPG

Media/PhotoData/Metadata/PhotoData/Sync/[number >= 100]SYNCD/IMG_[number of video in Camera Roll].THM

Corresponds to its parallel in Media/PhotoData/Metadata/DCIM/[number >= 100]APPLE/IMG_number of video in Camera Roll].THM

Media/PhotoData/MISC/DCIM_APPLE.plist

States the current Camera Roll number and the number of the last media placed into the Camera Roll

Media/PhotoData/MISC/PreviewWellImage.tiff

Thumbnail of the Camera Roll when in the root of the Photos app

Media/PhotoData/Photos.sqlite

Photo data

Media/PhotoData/Photos.sqlite.aside

Appears to be some sort of backup of Photos.sqlite

Media/Recordings/[date] [time].m4a

Voice Memo, named YYYYMMDD HHMMSS.m4a

Media/Recordings/AssetManifest.plist

Manifest of Voice Memo data

Media/Recordings/Recordings.db

Voice Memo data

Media/Recprdings/SyncedAssets.plist

Sync info of Voice Memos

SystemConfiguration/com.apple.accounts.exists.plist

List of accounts that are enabled/disabled on your device

SystemConfiguration/com.apple.AutoWake.plist

List of times that the device is scheduled to automatically connect to WiFi (persistent Wifi for ya)

SystemConfiguration/com.apple.mobilegestalt

Contains the device name

SystemConfiguration/com.apple.network.identification.plist

Network info, such as memorized SSID's to automatically connect to

com.apple.radios.plist - Airplane Mode toggle

SystemConfiguration/com.apple.wifi.plist

Network info, such as memorized SSID's to automatically connect to

SystemConfiguration/preferences.plist

Network info