//打印iphone支持的所有字体
NSArray *familyNames = [UIFont familyNames];
for(NSString *familyName in familyNames)
{
NSLog(@"%@", familyName);
NSArray *fontNames = [UIFont fontNamesForFamilyName:familyName];
for(NSString *fontName in fontNames)
{
NSLog(@"\t%@", fontName);
}
}