hslinux的专栏

备案用，免得用到的时候又四处fan

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. NSDictionary *dicDe

#ifndef Nil # if __has_feature(cxx_nullptr) # define Nil nullptr # else # define Nil __DARWIN_NULL # endif #endif #ifndef nil # if __has_feature(cxx_nullptr) # define nil nullptr # else # def