为了更好的适配不同系统与机型，ios开发环境的版本是怎样的？

Question

如题。
大家用的开发环境是怎样的？
XCODE版本和模拟器版本等。

Answer 1

Just use the latest Xcode version, and change the development target option of the project to choose which version of iOS to adapt to.

Answer 2

Just use the latest Xcode. Adaptation cannot be done by relying on a simulator. The simulator no longer supports iOS 7. It is best to buy all the real devices.