iphone multilanguage support

hello all i am new to iphone development i want to use multilanguage application in iphone please gui开发者_如何转开发de me how can i do it i dont know anything that how can i use multilanguage in iphone

Search for the keywords of localization, internatialization, iphone, ...

Here is a good tutorial http://www.switchonthecode.com/tutorials/a-simple-localization-example-for-the-iphone

and check out the iPhone Dev Center and its samples, like this one http://developer.apple.com/iphone/library/samplecode/InternationalMountains/Introduction/Intro.html

You'll find plenty of other tutorials around the net.