Xcode Swift 2变量声明(类型视图控制器不能使用实例成员)

I am working on a project that sends some HTTP commands with an IP address that the user defines in a text field. The IP address is essentially piped into many different functions for my app. As I have done this I keep running into the "Instance member cannot be used on type" error. At the fundamentals of variable declaration, what would be the correct way to do the following? I will have about 40-50 different requests.I am working on a project that sends some HTTP