- (NSString *)getVCardString {  UserInfo *userInfo = [PublicInfomation getUserInfo];  NSString *vCardString = [NSString      stringWithFormat:          @"BEGIN:VCARD VERSION:3.0 FN:%@ TEL:%@ ORG:%@ TITLE:%@ END:VCARD",          userInfo.fullName, userInfo.mobilePhone, userInfo.company,          userInfo.title];  return vCardString;}