What is the key in Xcode template to define Directory in a target?

问题

What is the key in Xcode template to define Directory in a Target ?

In Target,

• key BuildToolArgsString defines Arguments,
• key BuildToolPath defines Built Tool.

来源：https://stackoverflow.com/questions/9240258/what-is-the-key-in-xcode-template-to-define-directory-in-a-target