问题
How do you make a CLLocationDegrees? It's not a float, so what is it?
回答1:
According to the CLLocation documentation, CLLocationDegrees is simply a double. So to create one, you could do something as simple as this:
CLLocationDegrees degrees = 45;
回答2:
CLLocationDegrees are typedefed doubles: http://developer.apple.com/iphone/library/documentation/CoreLocation/Reference/CLLocation_Class/CLLocation/CLLocation.html#//apple_ref/doc/uid/TP40007126-CH3-SW19
ex: CLLocationDegrees myDegrees = 2.313224;
来源：https://stackoverflow.com/questions/2497137/cllocationdegrees-initialization