CLLocationDegrees初始化

Question

你如何制作CLLocationDegrees？这不是一个浮动，所以它是什么？

Answer 1

按照CLLocation documentation，CLLocationDegrees简直就是一个双。所以要创建一个，你可以做这样简单的事情：

CLLocationDegrees degrees = 45; 

Answer 2

CLLocationDegrees是通过typedef双打：http://developer.apple.com/iphone/library/documentation/CoreLocation/Reference/CLLocation_Class/CLLocation/CLLocation.html#//apple_ref/doc/uid/TP40007126-CH3-SW19

例如：CLLocationDegrees myDegrees = 2.313224;