遍历iOS所有字体

for (NSString * familyName in [UIFont familyNames]) {
        NSLog(@"-----Font FamilyName = %@-----",familyName); //*输出字体族科名字
        for (NSString * fontName in [UIFont fontNamesForFamilyName:familyName]) {
            NSLog(@"%@",fontName);
        }
    }