UIFont

如果我们多处要对字体进行设置，我们可以用宏来做，这样方便我们管理和扩展。 

// For text, messages, etc

#define DEFAULT_FONTSIZE    15

#define DEFAULT_FONT(s)     [UIFont fontWithName:@"ArialMT" size:s]

#define DEFAULT_BOLDFONT(s) [UIFont fontWithName:@"Arial-BoldMT" size:s]

  

// For table cells

#define CELL_FONTSIZE    16

#define CELL_FONT(s)     [UIFont fontWithName:@"Helvetica-Oblique" size:s]

#define CELL_BOLDFONT(s) [UIFont fontWithName:@"Helvetica-BoldOblique" size:s]

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正常：Helvetica

加粗：

"Helvetica-Bold"

"TimesNewRomanPS-BoldMT"

"Arial-BoldMT"

"CourierNewPS-BoldMT"

"Georgia-Bold"