Property list types and their various representations

iOS下Property list能够存储的数据类型

 Property list types and their various representations 

Abstract type	XML element	Cocoa class	Core Foundation type
array	<array>	NSArray	CFArray (CFArrayRef)
dictionary	<dict>	NSDictionary	CFDictionary (CFDictionaryRef)
string	<string>	NSString	CFString (CFStringRef)
data	<data>	NSData	CFData (CFDataRef)
date	<date>	NSDate	CFDate (CFDateRef)
number - integer	<integer>	NSNumber (intValue)	CFNumber (CFNumberRef, integer value)
number - floating point	<real>	NSNumber (floatValue)	CFNumber (CFNumberRef, floating-point value)
Boolean	<true/> or <false/>	NSNumber (boolValue == YES or boolValue == NO)	CFBoolean (CFBooleanRef ; kCFBooleanTrue or kCFBooleanFalse)