Multiple Mac computers using an Apple developer account

To export the private key directly from the installed machine, the method is as follows:

Xcode's organizer iphone development---Export and import operations from >developer profile

After successful export of the private key, copy the private key to the machine that needs to be installed and import the private key:

After you follow the steps, you can select the compiled certificate in Xcode for real-time online debugging

When your request a certificate from the IPhone Provisioning Portal, a public/private key pair is generated. The public key was included in your certificate. The private key is stored in your keychain. With these items, Xcode code-signs The applications your build with it. If you need to use another computer to develop IOS applications, you must transfer these digital-identification items to T He other computer. You can do this in the Xcode organizer.

To export your digital-identification items to a secure file, follow these steps:

Open the Xcode Organizer.
In the IPHONE development Group, select Developer profile.
Click Export Developer profile.
Name the file, select a location for it, enter a password to secure the file, and click Save.
Now if you need to develop IOS applications on another computer, import your digital-identification items into it by PE Rforming these steps:

Copy the Developer-profile archive to the second computer.
On the second computer, launch Xcode.
Open the Organizer.
In the IPHONE development Group, select Developer profile.
Click Import Developer profile.
Locate the archive, enter the password used to secure it, and click Open.

Transferred from: http://blog.csdn.net/jianxuanlu/article/details/7291035