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第一步：Project ► (Select Your Project Target) ► Build Settings ► (Type 'swift' in Searchbar) Swift Compiler Language ► Swift Language Version ► Click on Language list to open it 第二步：Xcode -> Edit -> Convert -> To Current Swift Syntax... ...

获取UUID的方法有很多，但是都会因为各种原因改变 /** 卸载应用重新安装后会不一致*/ + (NSString *)getUUID{ CFUUIDRef uuid = CFUUIDCreate(NULL); NSString *UUID = (__bridge_transfer NSString *)CFUUIDCreateString(NULL, uuid); ...

//检查是否开启相册 class func checkPhotoLibraryPermission() -> Bool{ if #available(iOS 9.0, *){ // iOS 9 及其以上系统运行 let status = PHPhotoLibrary.authorizationStatus() swi...