How to Set Up ARC in the new version of Xcode and the new version of arc in xcode

How to Set Up ARC in the new version of Xcode and the new version of arc in xcode
When you are just learning IOS development, it is best not to enable ARC to help you learn memory management. However, many users who are new to Xcode may find that when you use the latest version of Xcode, an error is reported when you type the Code such as release. This is because the system uses automatic memory management by default. The following describes how to set this ARC.

Note: after IOS 5.0 and xcode4.2

// ARC (auto reference count)-Automatic reference count,

// The Compiler automatically calculates the reference counter for us. The editor will know when to perform [stu release],

// Student * stu = [[Student alloc] init] autorelease]; tool/Raw Material

• Latest Version of Xcode

Method/step
1. Now, xcode version 5.1.1 Member of my iMAC. a new Project, you can't Release Memory directorily.