swift4.2 打印所有系统字体

 

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

func showAllFonts(){     let familyNames = UIFont.familyNames           var index:Int = 0           for familyName in familyNames {                   let fontNames = UIFont.fontNames(forFamilyName: familyName as String)         for fontName in fontNames         {             index += 1                           print("第 \(index) 个字体，字体font名称：\(fontName)")         }     } }