iOS: 字体样式

获取iOS内置所有的字体如下：

 NSArray *familyNames = [UIFont familyNames];
    for( NSString *familyName in familyNames ){
        printf( "Family: %s \n", [familyName UTF8String] );
        NSArray *fontNames = [UIFont fontNamesForFamilyName:familyName];
        for( NSString *fontName in fontNames ){
            printf( "\tFont: %s \n", [fontName UTF8String] );
        }
    }

打印结果：

Family: Copperplate
    Font: Copperplate-Light
    Font: Copperplate
    Font: Copperplate-Bold
Family: Heiti SC
Family: Iowan Old Style
    Font: IowanOldStyle-Italic
    Font: IowanOldStyle-Roman
    Font: IowanOldStyle-BoldItalic
    Font: IowanOldStyle-Bold
Family: Kohinoor Telugu
    Font: KohinoorTelugu-Regular
    Font: KohinoorTelugu-Medium
    Font: KohinoorTelugu-Light
Family: Thonburi
    Font: Thonburi
    Font: Thonburi-Bold
    Font: Thonburi-Light
Family: Heiti TC
Family: Courier New
    Font: CourierNewPS-BoldMT
    Font: CourierNewPS-ItalicMT
    Font: CourierNewPSMT
    Font: CourierNewPS-BoldItalicMT
Family: Gill Sans
    Font: GillSans-Italic
    Font: GillSans-Bold
    Font: GillSans-BoldItalic
    Font: GillSans-LightItalic
    Font: GillSans
    Font: GillSans-Light
    Font: GillSans-SemiBold
    Font: GillSans-SemiBoldItalic
    Font: GillSans-UltraBold
Family: Apple SD Gothic Neo
    Font: AppleSDGothicNeo-Bold
    Font: AppleSDGothicNeo-Thin
    Font: AppleSDGothicNeo-UltraLight
    Font: AppleSDGothicNeo-Regular
    Font: AppleSDGothicNeo-Light
    Font: AppleSDGothicNeo-Medium
    Font: AppleSDGothicNeo-SemiBold
Family: Marker Felt
    Font: MarkerFelt-Thin
    Font: MarkerFelt-Wide
Family: Avenir Next Condensed
    Font: AvenirNextCondensed-BoldItalic
    Font: AvenirNextCondensed-Heavy
    Font: AvenirNextCondensed-Medium
    Font: AvenirNextCondensed-Regular
    Font: AvenirNextCondensed-HeavyItalic
    Font: AvenirNextCondensed-MediumItalic
    Font: AvenirNextCondensed-Italic
    Font: AvenirNextCondensed-UltraLightItalic
    Font: AvenirNextCondensed-UltraLight
    Font: AvenirNextCondensed-DemiBold
    Font: AvenirNextCondensed-Bold
    Font: AvenirNextCondensed-DemiBoldItalic
Family: Tamil Sangam MN
    Font: TamilSangamMN
    Font: TamilSangamMN-Bold
Family: Helvetica Neue
    Font: HelveticaNeue-Italic
    Font: HelveticaNeue-Bold
    Font: HelveticaNeue-UltraLight
    Font: HelveticaNeue-CondensedBlack
    Font: HelveticaNeue-BoldItalic
    Font: HelveticaNeue-CondensedBold
    Font: HelveticaNeue-Medium
    Font: HelveticaNeue-Light
    Font: HelveticaNeue-Thin
    Font: HelveticaNeue-ThinItalic
    Font: HelveticaNeue-LightItalic
    Font: HelveticaNeue-UltraLightItalic
    Font: HelveticaNeue-MediumItalic
    Font: HelveticaNeue
Family: Gurmukhi MN
    Font: GurmukhiMN-Bold
    Font: GurmukhiMN
Family: Times New Roman
    Font: TimesNewRomanPSMT
    Font: TimesNewRomanPS-BoldItalicMT
    Font: TimesNewRomanPS-ItalicMT
    Font: TimesNewRomanPS-BoldMT
Family: Georgia
    Font: Georgia-BoldItalic
    Font: Georgia
    Font: Georgia-Italic
    Font: Georgia-Bold
Family: Apple Color Emoji
    Font: AppleColorEmoji
Family: Arial Rounded MT Bold
    Font: ArialRoundedMTBold
Family: Kailasa
    Font: Kailasa-Bold
    Font: Kailasa
Family: Kohinoor Devanagari
    Font: KohinoorDevanagari-Light
    Font: KohinoorDevanagari-Regular
    Font: KohinoorDevanagari-Semibold
Family: Kohinoor Bangla
    Font: KohinoorBangla-Semibold
    Font: KohinoorBangla-Regular
    Font: KohinoorBangla-Light
Family: Chalkboard SE
    Font: ChalkboardSE-Bold
    Font: ChalkboardSE-Light
    Font: ChalkboardSE-Regular
Family: Sinhala Sangam MN
    Font: SinhalaSangamMN-Bold
    Font: SinhalaSangamMN
Family: PingFang TC
    Font: PingFangTC-Medium
    Font: PingFangTC-Regular
    Font: PingFangTC-Light
    Font: PingFangTC-Ultralight
    Font: PingFangTC-Semibold
    Font: PingFangTC-Thin
Family: Gujarati Sangam MN
    Font: GujaratiSangamMN-Bold
    Font: GujaratiSangamMN
Family: Damascus
    Font: DamascusLight
    Font: DamascusBold
    Font: DamascusSemiBold
    Font: DamascusMedium
    Font: Damascus
Family: Noteworthy
    Font: Noteworthy-Light
    Font: Noteworthy-Bold
Family: Geeza Pro
    Font: GeezaPro
    Font: GeezaPro-Bold
Family: Avenir
    Font: Avenir-Medium
    Font: Avenir-HeavyOblique
    Font: Avenir-Book
    Font: Avenir-Light
    Font: Avenir-Roman
    Font: Avenir-BookOblique
    Font: Avenir-Black
    Font: Avenir-MediumOblique
    Font: Avenir-BlackOblique
    Font: Avenir-Heavy
    Font: Avenir-LightOblique
    Font: Avenir-Oblique
Family: Academy Engraved LET
    Font: AcademyEngravedLetPlain
Family: Mishafi
    Font: DiwanMishafi
Family: Futura
    Font: Futura-CondensedMedium
    Font: Futura-CondensedExtraBold
    Font: Futura-Medium
    Font: Futura-MediumItalic
Family: Farah
    Font: Farah
Family: Kannada Sangam MN
    Font: KannadaSangamMN
    Font: KannadaSangamMN-Bold
Family: Arial Hebrew
    Font: ArialHebrew-Bold
    Font: ArialHebrew-Light
    Font: ArialHebrew
Family: Arial
    Font: ArialMT
    Font: Arial-BoldItalicMT
    Font: Arial-BoldMT
    Font: Arial-ItalicMT
Family: Party LET
    Font: PartyLetPlain
Family: Chalkduster
    Font: Chalkduster
Family: Hoefler Text
    Font: HoeflerText-Italic
    Font: HoeflerText-Regular
    Font: HoeflerText-Black
    Font: HoeflerText-BlackItalic
Family: Optima
    Font: Optima-Regular
    Font: Optima-ExtraBlack
    Font: Optima-BoldItalic
    Font: Optima-Italic
    Font: Optima-Bold
Family: Palatino
    Font: Palatino-Bold
    Font: Palatino-Roman
    Font: Palatino-BoldItalic
    Font: Palatino-Italic
Family: Lao Sangam MN
    Font: LaoSangamMN
Family: Malayalam Sangam MN
    Font: MalayalamSangamMN-Bold
    Font: MalayalamSangamMN
Family: Al Nile
    Font: AlNile-Bold
    Font: AlNile
Family: Bradley Hand
    Font: BradleyHandITCTT-Bold
Family: PingFang HK
    Font: PingFangHK-Ultralight
    Font: PingFangHK-Semibold
    Font: PingFangHK-Thin
    Font: PingFangHK-Light
    Font: PingFangHK-Regular
    Font: PingFangHK-Medium
Family: Trebuchet MS
    Font: Trebuchet-BoldItalic
    Font: TrebuchetMS
    Font: TrebuchetMS-Bold
    Font: TrebuchetMS-Italic
Family: Helvetica
    Font: Helvetica-Bold
    Font: Helvetica
    Font: Helvetica-LightOblique
    Font: Helvetica-Oblique
    Font: Helvetica-BoldOblique
    Font: Helvetica-Light
Family: Courier
    Font: Courier-BoldOblique
    Font: Courier
    Font: Courier-Bold
    Font: Courier-Oblique
Family: Cochin
    Font: Cochin-Bold
    Font: Cochin
    Font: Cochin-Italic
    Font: Cochin-BoldItalic
Family: Hiragino Mincho ProN
    Font: HiraMinProN-W6
    Font: HiraMinProN-W3
Family: Devanagari Sangam MN
    Font: DevanagariSangamMN
    Font: DevanagariSangamMN-Bold
Family: Oriya Sangam MN
    Font: OriyaSangamMN
    Font: OriyaSangamMN-Bold
Family: Snell Roundhand
    Font: SnellRoundhand-Bold
    Font: SnellRoundhand
    Font: SnellRoundhand-Black
Family: Zapf Dingbats
    Font: ZapfDingbatsITC
Family: Bodoni
    Font: BodoniSvtyTwoITCTT-Bold
    Font: BodoniSvtyTwoITCTT-Book
    Font: BodoniSvtyTwoITCTT-BookIta
Family: Verdana
    Font: Verdana-Italic
    Font: Verdana-BoldItalic
    Font: Verdana
    Font: Verdana-Bold
Family: American Typewriter
    Font: AmericanTypewriter-CondensedLight
    Font: AmericanTypewriter
    Font: AmericanTypewriter-CondensedBold
    Font: AmericanTypewriter-Light
    Font: AmericanTypewriter-Bold
    Font: AmericanTypewriter-Condensed
Family: Avenir Next
    Font: AvenirNext-UltraLight
    Font: AvenirNext-UltraLightItalic
    Font: AvenirNext-Bold
    Font: AvenirNext-BoldItalic
    Font: AvenirNext-DemiBold
    Font: AvenirNext-DemiBoldItalic
    Font: AvenirNext-Medium
    Font: AvenirNext-HeavyItalic
    Font: AvenirNext-Heavy
    Font: AvenirNext-Italic
    Font: AvenirNext-Regular
    Font: AvenirNext-MediumItalic
Family: Baskerville
    Font: Baskerville-Italic
    Font: Baskerville-SemiBold
    Font: Baskerville-BoldItalic
    Font: Baskerville-SemiBoldItalic
    Font: Baskerville-Bold
    Font: Baskerville
Family: Khmer Sangam MN
    Font: KhmerSangamMN
Family: Didot
    Font: Didot-Italic
    Font: Didot-Bold
    Font: Didot
Family: Savoye LET
    Font: SavoyeLetPlain
Family: Bodoni Ornaments
    Font: BodoniOrnamentsITCTT
Family: Symbol
    Font: Symbol
Family: Menlo
    Font: Menlo-Italic
    Font: Menlo-Bold
    Font: Menlo-Regular
    Font: Menlo-BoldItalic
Family: Bodoni  Smallcaps
    Font: BodoniSvtyTwoSCITCTT-Book
Family: Papyrus
    Font: Papyrus
    Font: Papyrus-Condensed
Family: Hiragino Sans
    Font: HiraginoSans-W3
    Font: HiraginoSans-W6
Family: PingFang SC
    Font: PingFangSC-Ultralight
    Font: PingFangSC-Regular
    Font: PingFangSC-Semibold
    Font: PingFangSC-Thin
    Font: PingFangSC-Light
    Font: PingFangSC-Medium
Family: Euphemia UCAS
    Font: EuphemiaUCAS-Italic
    Font: EuphemiaUCAS
    Font: EuphemiaUCAS-Bold
Family: Telugu Sangam MN
Family: Bangla Sangam MN
Family: Zapfino
    Font: Zapfino
Family: Bodoni  Oldstyle
    Font: BodoniSvtyTwoOSITCTT-Book
    Font: BodoniSvtyTwoOSITCTT-Bold
    Font: BodoniSvtyTwoOSITCTT-BookIt 

字体样式形状：