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.net使用正则表达式校验、匹配字符工具类
开发程序离不开数据的校验,这里整理了一些数据的校验、匹配的方法:
1 /// <summary> 2 /// 字符(串)验证、匹配工具类 3 /// </summary> 4 public class ValidatorTools 5 { 6 #region 匹配方法 7 /// <summary> 8 /// 验证字符串是否匹配正则表达式描述的规则 9 /// </summary> 10 /// <param name="inputStr">待验证的字符串</param> 11 /// <param name="patternStr">正则表达式字符串</param> 12 /// <returns>是否匹配</returns> 13 public static bool IsMatch(string inputStr, string patternStr) 14 { 15 return IsMatch(inputStr, patternStr, false, false); 16 } 17 18 /// <summary> 19 /// 验证字符串是否匹配正则表达式描述的规则 20 /// </summary> 21 /// <param name="inputStr">待验证的字符串</param> 22 /// <param name="patternStr">正则表达式字符串</param> 23 /// <param name="ifIgnoreCase">匹配时是否不区分大小写</param> 24 /// <returns>是否匹配</returns> 25 public static bool IsMatch(string inputStr, string patternStr, bool ifIgnoreCase) 26 { 27 return IsMatch(inputStr, patternStr, ifIgnoreCase, false); 28 } 29 30 /// <summary> 31 /// 验证字符串是否匹配正则表达式描述的规则 32 /// </summary> 33 /// <param name="inputStr">待验证的字符串</param> 34 /// <param name="ifValidateWhiteSpace">是否验证空白字符串</param> 35 /// <param name="patternStr">正则表达式字符串</param> 36 /// <returns>是否匹配</returns> 37 public static bool IsMatch(string inputStr, bool ifValidateWhiteSpace, string patternStr) 38 { 39 return IsMatch(inputStr, patternStr, false, ifValidateWhiteSpace); 40 } 41 42 /// <summary> 43 /// 验证字符串是否匹配正则表达式描述的规则 44 /// </summary> 45 /// <param name="inputStr">待验证的字符串</param> 46 /// <param name="patternStr">正则表达式字符串</param> 47 /// <param name="ifIgnoreCase">匹配时是否不区分大小写</param> 48 /// <param name="ifValidateWhiteSpace">是否验证空白字符串</param> 49 /// <returns>是否匹配</returns> 50 public static bool IsMatch(string inputStr, string patternStr, bool ifIgnoreCase, bool ifValidateWhiteSpace) 51 { 52 if (!ifValidateWhiteSpace && string.IsNullOrWhiteSpace(inputStr))//.NET 4.0 新增IsNullOrWhiteSpace 方法,便于对用户做处理 53 return false;//如果不要求验证空白字符串而此时传入的待验证字符串为空白字符串,则不匹配 54 Regex regex = null; 55 if (ifIgnoreCase) 56 regex = new Regex(patternStr, RegexOptions.IgnoreCase);//指定不区分大小写的匹配 57 else 58 regex = new Regex(patternStr); 59 return regex.IsMatch(inputStr); 60 } 61 #endregion 62 63 #region 验证方法 64 /// <summary> 65 /// 验证数字(double类型) 66 /// [可以包含负号和小数点] 67 /// </summary> 68 /// <param name="input">待验证的字符串</param> 69 /// <returns>是否匹配</returns> 70 public static bool IsNumber(string input) 71 { 72 //string pattern = @"^-?\d+$|^(-?\d+)(\.\d+)?$"; 73 //return IsMatch(input, pattern); 74 double d = 0; 75 if (double.TryParse(input, out d)) 76 return true; 77 else 78 return false; 79 } 80 81 /// <summary> 82 /// 验证整数 83 /// </summary> 84 /// <param name="input">待验证的字符串</param> 85 /// <returns>是否匹配</returns> 86 public static bool IsInteger(string input) 87 { 88 //string pattern = @"^-?\d+$"; 89 //return IsMatch(input, pattern); 90 int i = 0; 91 if (int.TryParse(input, out i)) 92 return true; 93 else 94 return false; 95 } 96 97 /// <summary> 98 /// 验证非负整数 99 /// </summary> 100 /// <param name="input">待验证的字符串</param> 101 /// <returns>是否匹配</returns> 102 public static bool IsIntegerNotNagtive(string input)103 {104 //string pattern = @"^\d+$"; 105 //return IsMatch(input, pattern); 106 int i = -1;107 if (int.TryParse(input, out i) && i >= 0)108 return true;109 else110 return false;111 }112 113 /// <summary> 114 /// 验证正整数 115 /// </summary> 116 /// <param name="input">待验证的字符串</param> 117 /// <returns>是否匹配</returns> 118 public static bool IsIntegerPositive(string input)119 {120 //string pattern = @"^[0-9]*[1-9][0-9]*$"; 121 //return IsMatch(input, pattern); 122 int i = 0;123 if (int.TryParse(input, out i) && i >= 1)124 return true;125 else126 return false;127 }128 129 /// <summary> 130 /// 验证小数 131 /// </summary> 132 /// <param name="input">待验证的字符串</param> 133 /// <returns>是否匹配</returns> 134 public static bool IsDecimal(string input)135 {136 string pattern = @"^([-+]?[1-9]\d*\.\d+|-?0\.\d*[1-9]\d*)$";137 return IsMatch(input, pattern);138 }139 140 /// <summary> 141 /// 验证只包含英文字母 142 /// </summary> 143 /// <param name="input">待验证的字符串</param> 144 /// <returns>是否匹配</returns> 145 public static bool IsEnglishCharacter(string input)146 {147 string pattern = @"^[A-Za-z]+$";148 return IsMatch(input, pattern);149 }150 151 /// <summary> 152 /// 验证只包含数字和英文字母 153 /// </summary> 154 /// <param name="input">待验证的字符串</param> 155 /// <returns>是否匹配</returns> 156 public static bool IsIntegerAndEnglishCharacter(string input)157 {158 string pattern = @"^[0-9A-Za-z]+$";159 return IsMatch(input, pattern);160 }161 162 /// <summary> 163 /// 验证只包含汉字 164 /// </summary> 165 /// <param name="input">待验证的字符串</param> 166 /// <returns>是否匹配</returns> 167 public static bool IsChineseCharacter(string input)168 {169 string pattern = @"^[\u4e00-\u9fa5]+$";170 return IsMatch(input, pattern);171 }172 173 /// <summary> 174 /// 验证数字长度范围(数字前端的0计长度) 175 /// [若要验证固定长度,可传入相同的两个长度数值] 176 /// </summary> 177 /// <param name="input">待验证的字符串</param> 178 /// <param name="lengthBegin">长度范围起始值(含)</param> 179 /// <param name="lengthEnd">长度范围结束值(含)</param> 180 /// <returns>是否匹配</returns> 181 public static bool IsIntegerLength(string input, int lengthBegin, int lengthEnd)182 {183 //string pattern = @"^\d{" + lengthBegin + "," + lengthEnd + "}$"; 184 //return IsMatch(input, pattern); 185 if (input.Length >= lengthBegin && input.Length <= lengthEnd)186 {187 int i;188 if (int.TryParse(input, out i))189 return true;190 else191 return false;192 }193 else194 return false;195 }196 197 /// <summary> 198 /// 验证字符串包含内容 199 /// </summary> 200 /// <param name="input">待验证的字符串</param> 201 /// <param name="withEnglishCharacter">是否包含英文字母</param> 202 /// <param name="withNumber">是否包含数字</param> 203 /// <param name="withChineseCharacter">是否包含汉字</param> 204 /// <returns>是否匹配</returns> 205 public static bool IsStringInclude(string input, bool withEnglishCharacter, bool withNumber, bool withChineseCharacter)206 {207 if (!withEnglishCharacter && !withNumber && !withChineseCharacter)208 return false;//如果英文字母、数字和汉字都没有,则返回false 209 StringBuilder patternString = new StringBuilder();210 patternString.Append("^[");211 if (withEnglishCharacter)212 patternString.Append("a-zA-Z");213 if (withNumber)214 patternString.Append("0-9");215 if (withChineseCharacter)216 patternString.Append(@"\u4E00-\u9FA5");217 patternString.Append("]+$");218 return IsMatch(input, patternString.ToString());219 }220 221 /// <summary> 222 /// 验证字符串长度范围 223 /// [若要验证固定长度,可传入相同的两个长度数值] 224 /// </summary> 225 /// <param name="input">待验证的字符串</param> 226 /// <param name="lengthBegin">长度范围起始值(含)</param> 227 /// <param name="lengthEnd">长度范围结束值(含)</param> 228 /// <returns>是否匹配</returns> 229 public static bool IsStringLength(string input, int lengthBegin, int lengthEnd)230 {231 //string pattern = @"^.{" + lengthBegin + "," + lengthEnd + "}$"; 232 //return IsMatch(input, pattern); 233 if (input.Length >= lengthBegin && input.Length <= lengthEnd)234 return true;235 else236 return false;237 }238 239 /// <summary> 240 /// 验证字符串长度范围(字符串内只包含数字和/或英文字母) 241 /// [若要验证固定长度,可传入相同的两个长度数值] 242 /// </summary> 243 /// <param name="input">待验证的字符串</param> 244 /// <param name="lengthBegin">长度范围起始值(含)</param> 245 /// <param name="lengthEnd">长度范围结束值(含)</param> 246 /// <returns>是否匹配</returns> 247 public static bool IsStringLengthOnlyNumberAndEnglishCharacter(string input, int lengthBegin, int lengthEnd)248 {249 string pattern = @"^[0-9a-zA-z]{" + lengthBegin + "," + lengthEnd + "}$";250 return IsMatch(input, pattern);251 }252 253 /// <summary> 254 /// 验证字符串长度范围 255 /// [若要验证固定长度,可传入相同的两个长度数值] 256 /// </summary> 257 /// <param name="input">待验证的字符串</param> 258 /// <param name="withEnglishCharacter">是否包含英文字母</param> 259 /// <param name="withNumber">是否包含数字</param> 260 /// <param name="withChineseCharacter">是否包含汉字</param> 261 /// <param name="lengthBegin">长度范围起始值(含)</param> 262 /// <param name="lengthEnd">长度范围结束值(含)</param> 263 /// <returns>是否匹配</returns> 264 public static bool IsStringLengthByInclude(string input, bool withEnglishCharacter, bool withNumber, bool withChineseCharacter, int lengthBegin, int lengthEnd)265 {266 if (!withEnglishCharacter && !withNumber && !withChineseCharacter)267 return false;//如果英文字母、数字和汉字都没有,则返回false 268 StringBuilder patternString = new StringBuilder();269 patternString.Append("^[");270 if (withEnglishCharacter)271 patternString.Append("a-zA-Z");272 if (withNumber)273 patternString.Append("0-9");274 if (withChineseCharacter)275 patternString.Append(@"\u4E00-\u9FA5");276 patternString.Append("]{" + lengthBegin + "," + lengthEnd + "}$");277 return IsMatch(input, patternString.ToString());278 }279 280 /// <summary> 281 /// 验证字符串字节数长度范围 282 /// [若要验证固定长度,可传入相同的两个长度数值;每个汉字为两个字节长度] 283 /// </summary> 284 /// <param name="input">待验证的字符串</param> 285 /// <param name="lengthBegin">长度范围起始值(含)</param> 286 /// <param name="lengthEnd">长度范围结束值(含)</param> 287 /// <returns></returns> 288 public static bool IsStringByteLength(string input, int lengthBegin, int lengthEnd)289 {290 //int byteLength = Regex.Replace(input, @"[^\x00-\xff]", "ok").Length; 291 //if (byteLength >= lengthBegin && byteLength <= lengthEnd) 292 //{ 293 // return true; 294 //} 295 //return false; 296 int byteLength = Encoding.Default.GetByteCount(input);297 if (byteLength >= lengthBegin && byteLength <= lengthEnd)298 return true;299 else300 return false;301 }302 303 /// <summary> 304 /// 验证日期 305 /// </summary> 306 /// <param name="input">待验证的字符串</param> 307 /// <returns>是否匹配</returns> 308 public static bool IsDateTime(string input)309 {310 DateTime dt;311 if (DateTime.TryParse(input, out dt))312 return true;313 else314 return false;315 }316 317 /// <summary> 318 /// 验证固定电话号码 319 /// [3位或4位区号;区号可以用小括号括起来;区号可以省略;区号与本地号间可以用减号或空格隔开;可以有3位数的分机号,分机号前要加减号] 320 /// </summary> 321 /// <param name="input">待验证的字符串</param> 322 /// <returns>是否匹配</returns> 323 public static bool IsTelePhoneNumber(string input)324 {325 string pattern = @"^(((0\d2|0\d{2})[- ]?)?\d{8}|((0\d3|0\d{3})[- ]?)?\d{7})(-\d{3})?$";326 return IsMatch(input, pattern);327 }328 329 /// <summary> 330 /// 验证手机号码 331 /// [可匹配"(+86)013325656352",括号可以省略,+号可以省略,(+86)可以省略,11位手机号前的0可以省略;11位手机号第二位数可以是3、4、5、8中的任意一个] 332 /// </summary> 333 /// <param name="input">待验证的字符串</param> 334 /// <returns>是否匹配</returns> 335 public static bool IsMobilePhoneNumber(string input)336 {337 string pattern = @"^((\+)?86|((\+)?86)?)0?1[3458]\d{9}$";338 return IsMatch(input, pattern);339 }340 341 /// <summary> 342 /// 验证电话号码(可以是固定电话号码或手机号码) 343 /// [固定电话:[3位或4位区号;区号可以用小括号括起来;区号可以省略;区号与本地号间可以用减号或空格隔开;可以有3位数的分机号,分机号前要加减号]] 344 /// [手机号码:[可匹配"(+86)013325656352",括号可以省略,+号可以省略,(+86)可以省略,手机号前的0可以省略;手机号第二位数可以是3、4、5、8中的任意一个]] 345 /// </summary> 346 /// <param name="input">待验证的字符串</param> 347 /// <returns>是否匹配</returns> 348 public static bool IsPhoneNumber(string input)349 {350 string pattern = @"^((\+)?86|((\+)?86)?)0?1[3458]\d{9}$|^(((0\d2|0\d{2})[- ]?)?\d{8}|((0\d3|0\d{3})[- ]?)?\d{7})(-\d{3})?$";351 return IsMatch(input, pattern);352 }353 354 /// <summary> 355 /// 验证邮政编码 356 /// </summary> 357 /// <param name="input">待验证的字符串</param> 358 /// <returns>是否匹配</returns> 359 public static bool IsZipCode(string input)360 {361 //string pattern = @"^\d{6}$"; 362 //return IsMatch(input, pattern); 363 if (input.Length != 6)364 return false;365 int i;366 if (int.TryParse(input, out i))367 return true;368 else369 return false;370 }371 372 /// <summary> 373 /// 验证电子邮箱 374 /// [@字符前可以包含字母、数字、下划线和点号;@字符后可以包含字母、数字、下划线和点号;@字符后至少包含一个点号且点号不能是最后一个字符;最后一个点号后只能是字母或数字] 375 /// </summary> 376 /// <param name="input">待验证的字符串</param> 377 /// <returns>是否匹配</returns> 378 public static bool IsEmail(string input)379 {380 ////邮箱名以数字或字母开头;邮箱名可由字母、数字、点号、减号、下划线组成;邮箱名(@前的字符)长度为3~18个字符;邮箱名不能以点号、减号或下划线结尾;不能出现连续两个或两个以上的点号、减号。 381 //string pattern = @"^[a-zA-Z0-9]((?<!(\.\.|--))[a-zA-Z0-9\._-]){1,16}[a-zA-Z0-9]@([0-9a-zA-Z][0-9a-zA-Z-]{0,62}\.)+([0-9a-zA-Z][0-9a-zA-Z-]{0,62})\.?|((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$"; 382 string pattern = @"^([\w-\.]+)@([\w-\.]+)(\.[a-zA-Z0-9]+)$";383 return IsMatch(input, pattern);384 }385 386 /// <summary> 387 /// 验证网址(可以匹配IPv4地址但没对IPv4地址进行格式验证;IPv6暂时没做匹配) 388 /// [允许省略"://";可以添加端口号;允许层级;允许传参;域名中至少一个点号且此点号前要有内容] 389 /// </summary> 390 /// <param name="input">待验证的字符串</param> 391 /// <returns>是否匹配</returns> 392 public static bool IsURL(string input)393 {394 ////每级域名由字母、数字和减号构成(第一个字母不能是减号),不区分大小写,单个域长度不超过63,完整的域名全长不超过256个字符。在DNS系统中,全名是以一个点“.”来结束的,例如“www.nit.edu.cn.”。没有最后的那个点则表示一个相对地址。 395 ////没有例如"http://"的前缀,没有传参的匹配 396 //string pattern = @"^([0-9a-zA-Z][0-9a-zA-Z-]{0,62}\.)+([0-9a-zA-Z][0-9a-zA-Z-]{0,62})\.?$"; 397 398 //string pattern = @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?$"; 399 string pattern = @"^([a-zA-Z]+://)?([\w-\.]+)(\.[a-zA-Z0-9]+)(:\d{0,5})?/?([\w-/]*)\.?([a-zA-Z]*)\??(([\w-]*=[\w%]*&?)*)$";400 return IsMatch(input, pattern);401 }402 403 /// <summary> 404 /// 验证IPv4地址 405 /// [第一位和最后一位数字不能是0或255;允许用0补位] 406 /// </summary> 407 /// <param name="input">待验证的字符串</param> 408 /// <returns>是否匹配</returns> 409 public static bool IsIPv4(string input)410 {411 //string pattern = @"^(25[0-4]|2[0-4]\d]|[01]?\d{2}|[1-9])\.(25[0-5]|2[0-4]\d]|[01]?\d?\d)\.(25[0-5]|2[0-4]\d]|[01]?\d?\d)\.(25[0-4]|2[0-4]\d]|[01]?\d{2}|[1-9])$"; 412 //return IsMatch(input, pattern); 413 string[] IPs = input.Split(‘.‘);414 if (IPs.Length != 4)415 return false;416 int n = -1;417 for (int i = 0; i < IPs.Length; i++)418 {419 if (i == 0 || i == 3)420 {421 if (int.TryParse(IPs[i], out n) && n > 0 && n < 255)422 continue;423 else424 return false;425 }426 else427 {428 if (int.TryParse(IPs[i], out n) && n >= 0 && n <= 255)429 continue;430 else431 return false;432 }433 }434 return true;435 }436 437 /// <summary> 438 /// 验证IPv6地址 439 /// [可用于匹配任何一个合法的IPv6地址] 440 /// </summary> 441 /// <param name="input">待验证的字符串</param> 442 /// <returns>是否匹配</returns> 443 public static bool IsIPv6(string input)444 {445 string pattern = @"^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$";446 return IsMatch(input, pattern);447 }448 449 /// <summary> 450 /// 身份证上数字对应的地址 451 /// </summary> 452 //enum IDAddress 453 //{ 454 // 北京 = 11, 天津 = 12, 河北 = 13, 山西 = 14, 内蒙古 = 15, 辽宁 = 21, 吉林 = 22, 黑龙江 = 23, 上海 = 31, 江苏 = 32, 浙江 = 33, 455 // 安徽 = 34, 福建 = 35, 江西 = 36, 山东 = 37, 河南 = 41, 湖北 = 42, 湖南 = 43, 广东 = 44, 广西 = 45, 海南 = 46, 重庆 = 50, 四川 = 51, 456 // 贵州 = 52, 云南 = 53, 西藏 = 54, 陕西 = 61, 甘肃 = 62, 青海 = 63, 宁夏 = 64, 新疆 = 65, 台湾 = 71, 香港 = 81, 澳门 = 82, 国外 = 91 457 //} 458 459 /// <summary> 460 /// 验证一代身份证号(15位数) 461 /// [长度为15位的数字;匹配对应省份地址;生日能正确匹配] 462 /// </summary> 463 /// <param name="input">待验证的字符串</param> 464 /// <returns>是否匹配</returns> 465 public static bool IsIDCard15(string input)466 {467 //验证是否可以转换为15位整数 468 long l = 0;469 if (!long.TryParse(input, out l) || l.ToString().Length != 15)470 {471 return false;472 }473 //验证省份是否匹配 474 //1~6位为地区代码,其中1、2位数为各省级政府的代码,3、4位数为地、市级政府的代码,5、6位数为县、区级政府代码。 475 string address = "11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,63,64,65,71,81,82,91,";476 if (!address.Contains(input.Remove(2) + ","))477 {478 return false;479 }480 //验证生日是否匹配 481 string birthdate = input.Substring(6, 6).Insert(4, "/").Insert(2, "/");482 DateTime dt;483 if (!DateTime.TryParse(birthdate, out dt))484 {485 return false;486 }487 return true;488 }489 490 /// <summary> 491 /// 验证二代身份证号(18位数,GB11643-1999标准) 492 /// [长度为18位;前17位为数字,最后一位(校验码)可以为大小写x;匹配对应省份地址;生日能正确匹配;校验码能正确匹配] 493 /// </summary> 494 /// <param name="input">待验证的字符串</param> 495 /// <returns>是否匹配</returns> 496 public static bool IsIDCard18(string input)497 {498 //验证是否可以转换为正确的整数 499 long l = 0;500 if (!long.TryParse(input.Remove(17), out l) || l.ToString().Length != 17 || !long.TryParse(input.Replace(‘x‘, ‘0‘).Replace(‘X‘, ‘0‘), out l))501 {502 return false;503 }504 //验证省份是否匹配 505 //1~6位为地区代码,其中1、2位数为各省级政府的代码,3、4位数为地、市级政府的代码,5、6位数为县、区级政府代码。 506 string address = "11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,63,64,65,71,81,82,91,";507 if (!address.Contains(input.Remove(2) + ","))508 {509 return false;510 }511 //验证生日是否匹配 512 string birthdate = input.Substring(6, 8).Insert(6, "/").Insert(4, "/");513 DateTime dt;514 if (!DateTime.TryParse(birthdate, out dt))515 {516 return false;517 }518 //校验码验证 519 //校验码: 520 //(1)十七位数字本体码加权求和公式 521 //S = Sum(Ai * Wi), i = 0, ... , 16 ,先对前17位数字的权求和 522 //Ai:表示第i位置上的身份证号码数字值 523 //Wi:表示第i位置上的加权因子 524 //Wi: 7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2 525 //(2)计算模 526 //Y = mod(S, 11) 527 //(3)通过模得到对应的校验码 528 //Y: 0 1 2 3 4 5 6 7 8 9 10 529 //校验码: 1 0 X 9 8 7 6 5 4 3 2 530 string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(‘,‘);531 string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(‘,‘);532 char[] Ai = input.Remove(17).ToCharArray();533 int sum = 0;534 for (int i = 0; i < 17; i++)535 {536 sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString());537 }538 int y = -1;539 Math.DivRem(sum, 11, out y);540 if (arrVarifyCode[y] != input.Substring(17, 1).ToLower())541 {542 return false;543 }544 return true;545 }546 547 /// <summary> 548 /// 验证身份证号(不区分一二代身份证号) 549 /// </summary> 550 /// <param name="input">待验证的字符串</param> 551 /// <returns>是否匹配</returns> 552 public static bool IsIDCard(string input)553 {554 if (input.Length == 18)555 return IsIDCard18(input);556 else if (input.Length == 15)557 return IsIDCard15(input);558 else559 return false;560 }561 562 /// <summary> 563 /// 验证经度 564 /// </summary> 565 /// <param name="input">待验证的字符串</param> 566 /// <returns>是否匹配</returns> 567 public static bool IsLongitude(string input)568 {569 ////范围为-180~180,小数位数必须是1到5位 570 //string pattern = @"^[-\+]?((1[0-7]\d{1}|0?\d{1,2})\.\d{1,5}|180\.0{1,5})$"; 571 //return IsMatch(input, pattern); 572 float lon;573 if (float.TryParse(input, out lon) && lon >= -180 && lon <= 180)574 return true;575 else576 return false;577 }578 579 /// <summary> 580 /// 验证纬度 581 /// </summary> 582 /// <param name="input">待验证的字符串</param> 583 /// <returns>是否匹配</returns> 584 public static bool IsLatitude(string input)585 {586 ////范围为-90~90,小数位数必须是1到5位 587 //string pattern = @"^[-\+]?([0-8]?\d{1}\.\d{1,5}|90\.0{1,5})$"; 588 //return IsMatch(input, pattern); 589 float lat;590 if (float.TryParse(input, out lat) && lat >= -90 && lat <= 90)591 return true;592 else593 return false;594 }595 #endregion596 }
.net使用正则表达式校验、匹配字符工具类
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