NSDate Class Reference
| Inherits from | |
| Conforms to | |
| Framework |
/System/Library/Frameworks/Foundation.framework
|
| Availability |
Available in iOS 2.0 and later.
|
| Declared in |
NSDate.h
|
| Companion guides | |
| Related sample code |
Creating and Initializing Date Objects
-
+ date -
+ dateWithTimeIntervalSinceNow: -
+ dateWithTimeInterval:sinceDate: -
+ dateWithTimeIntervalSinceReferenceDate: -
+ dateWithTimeIntervalSince1970: -
– init -
– initWithTimeIntervalSinceNow: -
– initWithTimeInterval:sinceDate: -
– initWithTimeIntervalSinceReferenceDate: -
– initWithTimeIntervalSince1970:
Getting Temporal Boundaries
Comparing Dates
Getting Time Intervals
-
– timeIntervalSinceDate: -
– timeIntervalSinceNow -
+ timeIntervalSinceReferenceDate -
– timeIntervalSinceReferenceDate -
– timeIntervalSince1970
Adding a Time Interval
-
– dateByAddingTimeInterval: -
– addTimeInterval:Deprecated in iOS 4.0
Representing Dates as Strings
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原文：http://blog.csdn.net/opengl_es/article/details/24863095
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