问题
I have a project in Xcode with a ton of NSLogs, that have always worked... in Xcode 5. I updated to Xcode 6 and my app doesn't want to log anything. I have the debug area up and both sides are showing, I've tried pushing all the buttons down there and it still doesn't show up.
It's really frustrating because I need the NSLogs so I can debug my app.
来源：https://stackoverflow.com/questions/26079914/where-do-the-nslogs-show-up-in-xcode-6