官网地址:

http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Miscellaneous/Foundation_Constants/Reference/reference.html

NSError codes in the Cocoa error domain.

enum {

NSFileNoSuchFileError = 4,

NSFileLockingError = 255,

NSFileReadUnknownError = 256,

NSFileReadNoPermissionError = 257,

NSFileReadInvalidFileNameError = 258,

NSFileReadCorruptFileError = 259,

NSFileReadNoSuchFileError = 260,

NSFileReadInapplicableStringEncodingError = 261,

NSFileReadUnsupportedSchemeError = 262,

NSFileReadTooLargeError = 263,

NSFileReadUnknownStringEncodingError = 264,

NSFileWriteUnknownError = 512,

NSFileWriteNoPermissionError = 513,

NSFileWriteInvalidFileNameError = 514,

NSFileWriteInapplicableStringEncodingError = 517,

NSFileWriteUnsupportedSchemeError = 518,

NSFileWriteOutOfSpaceError = 640,

NSFileWriteVolumeReadOnlyError = 642m

NSKeyValueValidationError = 1024,

NSFormattingError = 2048,

NSUserCancelledError = 3072,

NSFileErrorMinimum = 0,

NSFileErrorMaximum = 1023,

NSValidationErrorMinimum = 1024,

NSValidationErrorMaximum = 2047,

NSFormattingErrorMinimum = 2048,

NSFormattingErrorMaximum = 2559,

NSPropertyListReadCorruptError = 3840,

NSPropertyListReadUnknownVersionError = 3841,

NSPropertyListReadStreamError = 3842,

NSPropertyListWriteStreamError = 3851,

NSPropertyListErrorMinimum = 3840,

NSPropertyListErrorMaximum = 4095

NSExecutableErrorMinimum = 3584,

NSExecutableNotLoadableError = 3584,

NSExecutableArchitectureMismatchError = 3585,

NSExecutableRuntimeMismatchError = 3586,

NSExecutableLoadError = 3587,

NSExecutableLinkError = 3588,

NSExecutableErrorMaximum = 3839,

}

typedef enum

{

NSURLErrorUnknown = -1,

NSURLErrorCancelled = -999,

NSURLErrorBadURL = -1000,

NSURLErrorTimedOut = -1001,

NSURLErrorUnsupportedURL = -1002,

NSURLErrorCannotFindHost = -1003,

NSURLErrorCannotConnectToHost = -1004,

NSURLErrorDataLengthExceedsMaximum = -1103,

NSURLErrorNetworkConnectionLost = -1005,

NSURLErrorDNSLookupFailed = -1006,

NSURLErrorHTTPTooManyRedirects = -1007,

NSURLErrorResourceUnavailable = -1008,

NSURLErrorNotConnectedToInternet = -1009,

NSURLErrorRedirectToNonExistentLocation = -1010,

NSURLErrorBadServerResponse = -1011,

NSURLErrorUserCancelledAuthentication = -1012,

NSURLErrorUserAuthenticationRequired = -1013,

NSURLErrorZeroByteResource = -1014,

NSURLErrorCannotDecodeRawData = -1015,

NSURLErrorCannotDecodeContentData = -1016,

NSURLErrorCannotParseResponse = -1017,

NSURLErrorFileDoesNotExist = -1100,

NSURLErrorFileIsDirectory = -1101,

NSURLErrorNoPermissionsToReadFile = -1102,

NSURLErrorSecureConnectionFailed = -1200,

NSURLErrorServerCertificateHasBadDate = -1201,

NSURLErrorServerCertificateUntrusted = -1202,

NSURLErrorServerCertificateHasUnknownRoot = -1203,

NSURLErrorServerCertificateNotYetValid = -1204,

NSURLErrorClientCertificateRejected = -1205,

NSURLErrorClientCertificateRequired = -1206,

NSURLErrorCannotLoadFromNetwork = -2000,

NSURLErrorCannotCreateFile = -3000,

NSURLErrorCannotOpenFile = -3001,

NSURLErrorCannotCloseFile = -3002,

NSURLErrorCannotWriteToFile = -3003,

NSURLErrorCannotRemoveFile = -3004,

NSURLErrorCannotMoveFile = -3005,

NSURLErrorDownloadDecodingFailedMidStream = -3006,

NSURLErrorDownloadDecodingFailedToComplete = -3007

}