1、银行卡号校验接口地址：
string url = "https://ccdcapi.alipay.com/validateAndCacheCardInfo.json?_input_charset=utf-8&cardNo=";
url += bankCardNo; //bankCardNo:银行卡号
url += "&cardBinCheck=true"; //是否检查银行
2、银行简称和名称对应关系：
Dictionary<string, string> dictBankCode = new Dictionary<string, string> { {"SRCB","深圳农村商业银行"}, {"BGB","广西北部湾银行"}, {"SHRCB","上海农村商业银行"}, {"BJBANK","北京银行"}, {"WHCCB","威海市商业银行"}, {"BOZK","周口银行"}, {"KORLABANK","库尔勒市商业银行"}, {"SPABANK","平安银行"}, {"SDEB","顺德农商银行"}, {"HURCB","湖北省农村信用社"}, {"WRCB","无锡农村商业银行"}, {"BOCY","朝阳银行"}, {"CZBANK","浙商银行"}, {"HDBANK","邯郸银行"}, {"BOC","中国银行"}, {"BOD","东莞银行"}, {"CCB","中国建设银行"}, {"ZYCBANK","遵义市商业银行"}, {"SXCB","绍兴银行"}, {"GZRCU","贵州省农村信用社"}, {"ZJKCCB","张家口市商业银行"}, {"BOJZ","锦州银行"}, {"BOP","平顶山银行"}, {"HKB","汉口银行"}, {"SPDB","上海浦东发展银行"}, {"NXRCU","宁夏黄河农村商业银行"}, {"NYNB","广东南粤银行"}, {"GRCB","广州农商银行"}, {"BOSZ","苏州银行"}, {"HZCB","杭州银行"}, {"HSBK","衡水银行"}, {"HBC","湖北银行"}, {"JXBANK","嘉兴银行"}, {"HRXJB","华融湘江银行"}, {"BODD","丹东银行"}, {"AYCB","安阳银行"}, {"EGBANK","恒丰银行"}, {"CDB","国家开发银行"}, {"TCRCB","江苏太仓农村商业银行"}, {"NJCB","南京银行"}, {"ZZBANK","郑州银行"}, {"DYCB","德阳商业银行"}, {"YBCCB","宜宾市商业银行"}, {"SCRCU","四川省农村信用"}, {"KLB","昆仑银行"}, {"LSBANK","莱商银行"}, {"YDRCB","尧都农商行"}, {"CCQTGB","重庆三峡银行"}, {"FDB","富滇银行"}, {"JSRCU","江苏省农村信用联合社"}, {"JNBANK","济宁银行"}, {"CMB","招商银行"}, {"JINCHB","晋城银行JCBANK"}, {"FXCB","阜新银行"}, {"WHRCB","武汉农村商业银行"}, {"HBYCBANK","湖北银行宜昌分行"}, {"TZCB","台州银行"}, {"TACCB","泰安市商业银行"}, {"XCYH","许昌银行"}, {"CEB","中国光大银行"}, {"NXBANK","宁夏银行"}, {"HSBANK","徽商银行"}, {"JJBANK","九江银行"}, {"NHQS","农信银清算中心"}, {"MTBANK","浙江民泰商业银行"}, {"LANGFB","廊坊银行"}, {"ASCB","鞍山银行"}, {"KSRB","昆山农村商业银行"}, {"YXCCB","玉溪市商业银行"}, {"DLB","大连银行"}, {"DRCBCL","东莞农村商业银行"}, {"GCB","广州银行"}, {"NBBANK","宁波银行"}, {"BOYK","营口银行"}, {"SXRCCU","陕西信合"}, {"GLBANK","桂林银行"}, {"BOQH","青海银行"}, {"CDRCB","成都农商银行"}, {"QDCCB","青岛银行"}, {"HKBEA","东亚银行"}, {"HBHSBANK","湖北银行黄石分行"}, {"WZCB","温州银行"}, {"TRCB","天津农商银行"}, {"QLBANK","齐鲁银行"}, {"GDRCC","广东省农村信用社联合社"}, {"ZJTLCB","浙江泰隆商业银行"}, {"GZB","赣州银行"}, {"GYCB","贵阳市商业银行"}, {"CQBANK","重庆银行"}, {"DAQINGB","龙江银行"}, {"CGNB","南充市商业银行"}, {"SCCB","三门峡银行"}, {"CSRCB","常熟农村商业银行"}, {"SHBANK","上海银行"}, {"JLBANK","吉林银行"}, {"CZRCB","常州农村信用联社"}, {"BANKWF","潍坊银行"}, {"ZRCBANK","张家港农村商业银行"}, {"FJHXBC","福建海峡银行"}, {"ZJNX","浙江省农村信用社联合社"}, {"LZYH","兰州银行"}, {"JSB","晋商银行"}, {"BOHAIB","渤海银行"}, {"CZCB","浙江稠州商业银行"}, {"YQCCB","阳泉银行"}, {"SJBANK","盛京银行"}, {"XABANK","西安银行"}, {"BSB","包商银行"}, {"JSBANK","江苏银行"}, {"FSCB","抚顺银行"}, {"HNRCU","河南省农村信用"}, {"COMM","交通银行"}, {"XTB","邢台银行"}, {"CITIC","中信银行"}, {"HXBANK","华夏银行"}, {"HNRCC","湖南省农村信用社"}, {"DYCCB","东营市商业银行"}, {"ORBANK","鄂尔多斯银行"}, {"BJRCB","北京农村商业银行"}, {"XYBANK","信阳银行"}, {"ZGCCB","自贡市商业银行"}, {"CDCB","成都银行"}, {"HANABANK","韩亚银行"}, {"CMBC","中国民生银行"}, {"LYBANK","洛阳银行"}, {"GDB","广东发展银行"}, {"ZBCB","齐商银行"}, {"CBKF","开封市商业银行"}, {"H3CB","内蒙古银行"}, {"CIB","兴业银行"}, {"CRCBANK","重庆农村商业银行"}, {"SZSBK","石嘴山银行"}, {"DZBANK","德州银行"}, {"SRBANK","上饶银行"}, {"LSCCB","乐山市商业银行"}, {"JXRCU","江西省农村信用"}, {"ICBC","中国工商银行"}, {"JZBANK","晋中市商业银行"}, {"HZCCB","湖州市商业银行"}, {"NHB","南海农村信用联社"}, {"XXBANK","新乡银行"}, {"JRCB","江苏江阴农村商业银行"}, {"YNRCC","云南省农村信用社"}, {"ABC","中国农业银行"}, {"GXRCU","广西省农村信用"}, {"PSBC","中国邮政储蓄银行"}, {"BZMD","驻马店银行"}, {"ARCU","安徽省农村信用社"}, {"GSRCU","甘肃省农村信用"}, {"LYCB","辽阳市商业银行"}, {"JLRCU","吉林农信"}, {"URMQCCB","乌鲁木齐市商业银行"}, {"XLBANK","中山小榄村镇银行"}, {"CSCB","长沙银行"}, {"JHBANK","金华银行"}, {"BHB","河北银行"}, {"NBYZ","鄞州银行"}, {"LSBC","临商银行"}, {"BOCD","承德银行"}, {"SDRCU","山东农信"}, {"NCB","南昌银行"}, {"TCCB","天津银行"}, {"WJRCB","吴江农商银行"}, {"CBBQS","城市商业银行资金清算中心"}, {"HBRCU","河北省农村信用社"}};