xcode view in how class structure diagram, similar to the eclipse of the ctrl + T shortcut key

Such as the title: xcode view of how the class structure diagram, similar to the eclipse of the ctrl + T shortcut key
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If only simple inheritance relationship or interface, you can use the following method:
Is xcode4.2 above, xcode3 may not be the same:


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Specific Screenshot following address:
http://my.csdn.net/my/album/detail/1170890
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command + 2
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Class structure in the above document navigation bar, tap to open the file came out.