最近在开发一个引导页面，而现在UI图是使用蓝湖蓝湖进行标注的，如下图：
引导图
图中的1和3是不同字体不同字重的，而我是把它们放在一个Label里面展示出来的，技术点是通过设置其富文本属性实现的，代码如下：
//设置indicationLB的字体
NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"1/3"];
[str addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:22.f] range:NSMakeRange(0, 1)];
self.indicationLB.attributedText = str;
可是上面的方法已经经过多次换方法仍然达不到UI设计的标准，换成字体PingFang SC字重Medium的要求，所以我们就继续探索！终于功夫不负有心人，方法如下：
//设置indicationLB的字体
NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"1/3"];
[str addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"PingFangSC-Medium" size:22.f] range:NSMakeRange(0, 1)];
self.indicationLB.attributedText = str;
要注意的是，字体名称的大小写以及中间的横杠，同理如果需要更改其他的字体和字重方法也一样，下面附录一份字体名称，方便大家使用，同时欢迎大家和我交流，QQ：834537795。
字体名称附录：
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 72
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 72 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 72 Oldstyle
Font: BodoniSvtyTwoOSITCTT-Book
Font: BodoniSvtyTwoOSITCTT-Bold
Font: BodoniSvtyTwoOSITCTT-BookIt
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