iOS遍历系统字体

    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] );        }    }