CLLocationDegrees初始化

Question

你如何制作CLLocationDegrees？它不是浮动的，它是什么？

Answer 1

根据CLLocation documentation，CLLocationDegrees只是一个双倍。所以要创建一个，你可以做一些简单的事情：

CLLocationDegrees degrees = 45;

Answer 2

CLLocationDegrees是typedefed double：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;