pragma mark - 字符串處理 文字大小不同

• (NSMutableAttributedString *)changeStringType:(NSString *)typeString
  withPrice:(NSString *)priceStr
  withTypeFont:(UIFont *)typeFont
  withPriceFont:(UIFont *)priceFont
  withReturn:(BOOL)isEnter
  {
  NSString *centerString = isEnter ? @"\n" : @"";

  NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@%@%@", typeString, centerString, priceStr]];

  [attrString addAttribute:NSFontAttributeName value:typeFont range:NSMakeRange(0, typeString.length)];
  [attrString addAttribute:NSFontAttributeName value:priceFont range:NSMakeRange((isEnter ? (typeString.length+1) : (typeString.length)), priceStr.length)];

  return attrString;
  }