C# 正则表达式检查输入字符

public class Validator
  2         {
  3             #region 匹配方法
  4             /// <summary>  
  5             /// 验证字符串是否匹配正则表达式描述的规则  
  6             /// </summary>  
  7             /// <param name="inputStr">待验证的字符串</param>  
  8             /// <param name="patternStr">正则表达式字符串</param>  
  9             /// <returns>是否匹配</returns>  
 10             public static bool IsMatch(string inputStr, string patternStr)
 11             {
 12                 return IsMatch(inputStr, patternStr, false, false);
 13             }
 14 
 15             /// <summary>  
 16             /// 验证字符串是否匹配正则表达式描述的规则  
 17             /// </summary>  
 18             /// <param name="inputStr">待验证的字符串</param>  
 19             /// <param name="patternStr">正则表达式字符串</param>  
 20             /// <param name="ifIgnoreCase">匹配时是否不区分大小写</param>  
 21             /// <returns>是否匹配</returns>  
 22             public static bool IsMatch(string inputStr, string patternStr, bool ifIgnoreCase)
 23             {
 24                 return IsMatch(inputStr, patternStr, ifIgnoreCase, false);
 25             }
 26 
 27             /// <summary>  
 28             /// 验证字符串是否匹配正则表达式描述的规则  
 29             /// </summary>  
 30             /// <param name="inputStr">待验证的字符串</param>  
 31             /// <param name="patternStr">正则表达式字符串</param>  
 32             /// <param name="ifValidateWhiteSpace">是否验证空白字符串</param>  
 33             /// <returns>是否匹配</returns>  
 34             public static bool IsMatch(string inputStr, string patternStr, bool ifValidateWhiteSpace)
 35             {
 36                 return IsMatch(inputStr, patternStr, false, ifValidateWhiteSpace);
 37             }
 38 
 39             /// <summary>  
 40             /// 验证字符串是否匹配正则表达式描述的规则  
 41             /// </summary>  
 42             /// <param name="inputStr">待验证的字符串</param>  
 43             /// <param name="patternStr">正则表达式字符串</param>  
 44             /// <param name="ifIgnoreCase">匹配时是否不区分大小写</param>  
 45             /// <param name="ifValidateWhiteSpace">是否验证空白字符串</param>  
 46             /// <returns>是否匹配</returns>  
 47             public static bool IsMatch(string inputStr, string patternStr, bool ifIgnoreCase, bool ifValidateWhiteSpace)
 48             {
 49                 if (!ifValidateWhiteSpace && string.IsNullOrWhiteSpace(inputStr))//.NET 4.0 新增IsNullOrWhiteSpace 方法,便于对用户做处理
 50                     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  
 51                 Regex regex = null;
 52                 if (ifIgnoreCase)
 53                     regex = new Regex(patternStr, RegexOptions.IgnoreCase);//指定不区分大小写的匹配  
 54                 else
 55                     regex = new Regex(patternStr);
 56                 return regex.IsMatch(inputStr);
 57             }
 58             #endregion
 59 
 60             #region 验证方法
 61             /// <summary>  
 62             /// 验证数字(double类型)  
 63             /// [可以包含负号和小数点]  
 64             /// </summary>  
 65             /// <param name="input">待验证的字符串</param>  
 66             /// <returns>是否匹配</returns>  
 67             public static bool IsNumber(string input)
 68             {
 69                 //string pattern = @"^-?\d+$|^(-?\d+)(\.\d+)?$";  
 70                 //return IsMatch(input, pattern);  
 71                 double d = 0;
 72                 if (double.TryParse(input, out d))
 73                     return true;
 74                 else
 75                     return false;
 76             }
 77 
 78             /// <summary>  
 79             /// 验证整数  
 80             /// </summary>  
 81             /// <param name="input">待验证的字符串</param>  
 82             /// <returns>是否匹配</returns>  
 83             public static bool IsInteger(string input)
 84             {
 85                 //string pattern = @"^-?\d+$";  
 86                 //return IsMatch(input, pattern);  
 87                 int i = 0;
 88                 if (int.TryParse(input, out i))
 89                     return true;
 90                 else
 91                     return false;
 92             }
 93 
 94             /// <summary>  
 95             /// 验证非负整数  
 96             /// </summary>  
 97             /// <param name="input">待验证的字符串</param>  
 98             /// <returns>是否匹配</returns>  
 99             public static bool IsIntegerNotNagtive(string input)
100             {
101                 //string pattern = @"^\d+$";  
102                 //return IsMatch(input, pattern);  
103                 int i = -1;
104                 if (int.TryParse(input, out i) && i >= 0)
105                     return true;
106                 else
107                     return false;
108             }
109 
110             /// <summary>  
111             /// 验证正整数  
112             /// </summary>  
113             /// <param name="input">待验证的字符串</param>  
114             /// <returns>是否匹配</returns>  
115             public static bool IsIntegerPositive(string input)
116             {
117                 //string pattern = @"^[0-9]*[1-9][0-9]*$";  
118                 //return IsMatch(input, pattern);  
119                 int i = 0;
120                 if (int.TryParse(input, out i) && i >= 1)
121                     return true;
122                 else
123                     return false;
124             }
125 
126             /// <summary>  
127             /// 验证小数  
128             /// </summary>  
129             /// <param name="input">待验证的字符串</param>  
130             /// <returns>是否匹配</returns>  
131             public static bool IsDecimal(string input)
132             {
133                 string pattern = @"^([-+]?[1-9]\d*\.\d+|-?0\.\d*[1-9]\d*)$";
134                 return IsMatch(input, pattern);
135             }
136 
137             /// <summary>  
138             /// 验证只包含英文字母  
139             /// </summary>  
140             /// <param name="input">待验证的字符串</param>  
141             /// <returns>是否匹配</returns>  
142             public static bool IsEnglishCharacter(string input)
143             {
144                 string pattern = @"^[A-Za-z]+$";
145                 return IsMatch(input, pattern);
146             }
147 
148             /// <summary>  
149             /// 验证只包含数字和英文字母  
150             /// </summary>  
151             /// <param name="input">待验证的字符串</param>  
152             /// <returns>是否匹配</returns>  
153             public static bool IsIntegerAndEnglishCharacter(string input)
154             {
155                 string pattern = @"^[0-9A-Za-z]+$";
156                 return IsMatch(input, pattern);
157             }
158 
159             /// <summary>  
160             /// 验证只包含汉字  
161             /// </summary>  
162             /// <param name="input">待验证的字符串</param>  
163             /// <returns>是否匹配</returns>  
164             public static bool IsChineseCharacter(string input)
165             {
166                 string pattern = @"^[\u4e00-\u9fa5]+$";
167                 return IsMatch(input, pattern);
168             }
169 
170             /// <summary>  
171             /// 验证数字长度范围(数字前端的0计长度)  
172             /// [若要验证固定长度,可传入相同的两个长度数值]  
173             /// </summary>  
174             /// <param name="input">待验证的字符串</param>  
175             /// <param name="lengthBegin">长度范围起始值(含)</param>  
176             /// <param name="lengthEnd">长度范围结束值(含)</param>  
177             /// <returns>是否匹配</returns>  
178             public static bool IsIntegerLength(string input, int lengthBegin, int lengthEnd)
179             {
180                 //string pattern = @"^\d{" + lengthBegin + "," + lengthEnd + "}$";  
181                 //return IsMatch(input, pattern);  
182                 if (input.Length >= lengthBegin && input.Length <= lengthEnd)
183                 {
184                     int i;
185                     if (int.TryParse(input, out i))
186                         return true;
187                     else
188                         return false;
189                 }
190                 else
191                     return false;
192             }
193 
194             /// <summary>  
195             /// 验证字符串包含内容  
196             /// </summary>  
197             /// <param name="input">待验证的字符串</param>  
198             /// <param name="withEnglishCharacter">是否包含英文字母</param>  
199             /// <param name="withNumber">是否包含数字</param>  
200             /// <param name="withChineseCharacter">是否包含汉字</param>  
201             /// <returns>是否匹配</returns>  
202             public static bool IsStringInclude(string input, bool withEnglishCharacter, bool withNumber, bool withChineseCharacter)
203             {
204                 if (!withEnglishCharacter && !withNumber && !withChineseCharacter)
205                     return false;//如果英文字母、数字和汉字都没有,则返回false  
206                 StringBuilder patternString = new StringBuilder();
207                 patternString.Append("^[");
208                 if (withEnglishCharacter)
209                     patternString.Append("a-zA-Z");
210                 if (withNumber)
211                     patternString.Append("0-9");
212                 if (withChineseCharacter)
213                     patternString.Append(@"\u4E00-\u9FA5");
214                 patternString.Append("]+$");
215                 return IsMatch(input, patternString.ToString());
216             }
217 
218             /// <summary>  
219             /// 验证字符串长度范围  
220             /// [若要验证固定长度,可传入相同的两个长度数值]  
221             /// </summary>  
222             /// <param name="input">待验证的字符串</param>  
223             /// <param name="lengthBegin">长度范围起始值(含)</param>  
224             /// <param name="lengthEnd">长度范围结束值(含)</param>  
225             /// <returns>是否匹配</returns>  
226             public static bool IsStringLength(string input, int lengthBegin, int lengthEnd)
227             {
228                 //string pattern = @"^.{" + lengthBegin + "," + lengthEnd + "}$";  
229                 //return IsMatch(input, pattern);  
230                 if (input.Length >= lengthBegin && input.Length <= lengthEnd)
231                     return true;
232                 else
233                     return false;
234             }
235 
236             /// <summary>  
237             /// 验证字符串长度范围(字符串内只包含数字和/或英文字母)  
238             /// [若要验证固定长度,可传入相同的两个长度数值]  
239             /// </summary>  
240             /// <param name="input">待验证的字符串</param>  
241             /// <param name="lengthBegin">长度范围起始值(含)</param>  
242             /// <param name="lengthEnd">长度范围结束值(含)</param>  
243             /// <returns>是否匹配</returns>  
244             public static bool IsStringLengthOnlyNumberAndEnglishCharacter(string input, int lengthBegin, int lengthEnd)
245             {
246                 string pattern = @"^[0-9a-zA-z]{" + lengthBegin + "," + lengthEnd + "}$";
247                 return IsMatch(input, pattern);
248             }
249 
250             /// <summary>  
251             /// 验证字符串长度范围  
252             /// [若要验证固定长度,可传入相同的两个长度数值]  
253             /// </summary>  
254             /// <param name="input">待验证的字符串</param>  
255             /// <param name="withEnglishCharacter">是否包含英文字母</param>  
256             /// <param name="withNumber">是否包含数字</param>  
257             /// <param name="withChineseCharacter">是否包含汉字</param>  
258             /// <param name="lengthBegin">长度范围起始值(含)</param>  
259             /// <param name="lengthEnd">长度范围结束值(含)</param>  
260             /// <returns>是否匹配</returns>  
261             public static bool IsStringLengthByInclude(string input, bool withEnglishCharacter, bool withNumber, bool withChineseCharacter, int lengthBegin, int lengthEnd)
262             {
263                 if (!withEnglishCharacter && !withNumber && !withChineseCharacter)
264                     return false;//如果英文字母、数字和汉字都没有,则返回false  
265                 StringBuilder patternString = new StringBuilder();
266                 patternString.Append("^[");
267                 if (withEnglishCharacter)
268                     patternString.Append("a-zA-Z");
269                 if (withNumber)
270                     patternString.Append("0-9");
271                 if (withChineseCharacter)
272                     patternString.Append(@"\u4E00-\u9FA5");
273                 patternString.Append("]{" + lengthBegin + "," + lengthEnd + "}$");
274                 return IsMatch(input, patternString.ToString());
275             }
276 
277             /// <summary>  
278             /// 验证字符串字节数长度范围  
279             /// [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]  
280             /// </summary>  
281             /// <param name="input">待验证的字符串</param>  
282             /// <param name="lengthBegin">长度范围起始值(含)</param>  
283             /// <param name="lengthEnd">长度范围结束值(含)</param>  
284             /// <returns></returns>  
285             public static bool IsStringByteLength(string input, int lengthBegin, int lengthEnd)
286             {
287                 //int byteLength = Regex.Replace(input, @"[^\x00-\xff]", "ok").Length;  
288                 //if (byteLength >= lengthBegin && byteLength <= lengthEnd)  
289                 //{  
290                 //    return true;  
291                 //}  
292                 //return false;  
293                 int byteLength = Encoding.Default.GetByteCount(input);
294                 if (byteLength >= lengthBegin && byteLength <= lengthEnd)
295                     return true;
296                 else
297                     return false;
298             }
299 
300             /// <summary>  
301             /// 验证日期  
302             /// </summary>  
303             /// <param name="input">待验证的字符串</param>  
304             /// <returns>是否匹配</returns>  
305             public static bool IsDateTime(string input)
306             {
307                 DateTime dt;
308                 if (DateTime.TryParse(input, out dt))
309                     return true;
310                 else
311                     return false;
312             }
313 
314             /// <summary>  
315             /// 验证固定电话号码  
316             /// [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]  
317             /// </summary>  
318             /// <param name="input">待验证的字符串</param>  
319             /// <returns>是否匹配</returns>  
320             public static bool IsTelePhoneNumber(string input)
321             {
322                 string pattern = @"^(((0\d2|0\d{2})[- ]?)?\d{8}|((0\d3|0\d{3})[- ]?)?\d{7})(-\d{3})?$";
323                 return IsMatch(input, pattern);
324             }
325 
326             /// <summary>  
327             /// 验证手机号码  
328             /// [可匹配"(+86)013325656352",括号可以省略,+号可以省略,(+86)可以省略,11位手机号前的0可以省略;11位手机号第二位数可以是3、4、5、8中的任意一个]  
329             /// </summary>  
330             /// <param name="input">待验证的字符串</param>  
331             /// <returns>是否匹配</returns>  
332             public static bool IsMobilePhoneNumber(string input)
333             {
334                 string pattern = @"^((\+)?86|((\+)?86)?)0?1[3458]\d{9}$";
335                 return IsMatch(input, pattern);
336             }
337 
338             /// <summary>  
339             /// 验证电话号码(可以是固定电话号码或手机号码)  
340             /// [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]]  
341             /// [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]]  
342             /// </summary>  
343             /// <param name="input">待验证的字符串</param>  
344             /// <returns>是否匹配</returns>  
345             public static bool IsPhoneNumber(string input)
346             {
347                 string pattern = @"^((\+)?86|((\+)?86)?)0?1[3458]\d{9}$|^(((0\d2|0\d{2})[- ]?)?\d{8}|((0\d3|0\d{3})[- ]?)?\d{7})(-\d{3})?$";
348                 return IsMatch(input, pattern);
349             }
350 
351             /// <summary>  
352             /// 验证邮政编码  
353             /// </summary>  
354             /// <param name="input">待验证的字符串</param>  
355             /// <returns>是否匹配</returns>  
356             public static bool IsZipCode(string input)
357             {
358                 //string pattern = @"^\d{6}$";  
359                 //return IsMatch(input, pattern);  
360                 if (input.Length != 6)
361                     return false;
362                 int i;
363                 if (int.TryParse(input, out i))
364                     return true;
365                 else
366                     return false;
367             }
368 
369             /// <summary>  
370             /// 验证电子邮箱  
371             /// [@字符前可以包含字母、数字、下划线和点号;@字符后可以包含字母、数字、下划线和点号;@字符后至少包含一个点号且点号不能是最后一个字符;最后一个点号后只能是字母或数字]  
372             /// </summary>  
373             /// <param name="input">待验证的字符串</param>  
374             /// <returns>是否匹配</returns>  
375             public static bool IsEmail(string input)
376             {
377                 ////邮箱名以数字或字母开头;邮箱名可由字母、数字、点号、减号、下划线组成;邮箱名(@前的字符)长度为3~18个字符;邮箱名不能以点号、减号或下划线结尾;不能出现连续两个或两个以上的点号、减号。  
378                 //string pattern = @"^[a-zA-Z0-9]((?<!(\.\.|--))[a-zA-Z0-9\._-]){1,16}[a-zA-Z0-9]@([0-9a-zA-Z][0-9a-zA-Z-]{0,62}\.)+([0-9a-zA-Z][0-9a-zA-Z-]{0,62})\.?|((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$";  
379                 string pattern = @"^([\w-\.]+)@([\w-\.]+)(\.[a-zA-Z0-9]+)$";
380                 return IsMatch(input, pattern);
381             }
382 
383             /// <summary>  
384             /// 验证网址(可以匹配IPv4地址但没对IPv4地址进行格式验证;IPv6暂时没做匹配)  
385             /// [允许省略"://";可以添加端口号;允许层级;允许传参;域名中至少一个点号且此点号前要有内容]  
386             /// </summary>  
387             /// <param name="input">待验证的字符串</param>  
388             /// <returns>是否匹配</returns>  
389             public static bool IsURL(string input)
390             {
391                 ////每级域名由字母、数字和减号构成(第一个字母不能是减号),不区分大小写,单个域长度不超过63,完整的域名全长不超过256个字符。在DNS系统中,全名是以一个点“.”来结束的,例如“www.nit.edu.cn.”。没有最后的那个点则表示一个相对地址。   
392                 ////没有例如"http://"的前缀,没有传参的匹配  
393                 //string pattern = @"^([0-9a-zA-Z][0-9a-zA-Z-]{0,62}\.)+([0-9a-zA-Z][0-9a-zA-Z-]{0,62})\.?$";  
394 
395                 //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\&%_\./-~-]*)?$";  
396                 string pattern = @"^([a-zA-Z]+://)?([\w-\.]+)(\.[a-zA-Z0-9]+)(:\d{0,5})?/?([\w-/]*)\.?([a-zA-Z]*)\??(([\w-]*=[\w%]*&?)*)$";
397                 return IsMatch(input, pattern);
398             }
399 
400             /// <summary>  
401             /// 验证IPv4地址  
402             /// [第一位和最后一位数字不能是0或255;允许用0补位]  
403             /// </summary>  
404             /// <param name="input">待验证的字符串</param>  
405             /// <returns>是否匹配</returns>  
406             public static bool IsIPv4(string input)
407             {
408                 //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])$";  
409                 //return IsMatch(input, pattern);  
410                 string[] IPs = input.Split('.');
411                 if (IPs.Length != 4)
412                     return false;
413                 int n = -1;
414                 for (int i = 0; i < IPs.Length; i++)
415                 {
416                     if (i == 0 || i == 3)
417                     {
418                         if (int.TryParse(IPs[i], out n) && n > 0 && n < 255)
419                             continue;
420                         else
421                             return false;
422                     }
423                     else
424                     {
425                         if (int.TryParse(IPs[i], out n) && n >= 0 && n <= 255)
426                             continue;
427                         else
428                             return false;
429                     }
430                 }
431                 return true;
432             }
433 
434             /// <summary>  
435             /// 验证IPv6地址  
436             /// [可用于匹配任何一个合法的IPv6地址]  
437             /// </summary>  
438             /// <param name="input">待验证的字符串</param>  
439             /// <returns>是否匹配</returns>  
440             public static bool IsIPv6(string input)
441             {
442                 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*$";
443                 return IsMatch(input, pattern);
444             }
445 
446             /// <summary>  
447             /// 身份证上数字对应的地址  
448             /// </summary>  
449             //enum IDAddress  
450             //{  
451             //    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,  
452             //    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,  
453             //    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  
454             //}  
455 
456             /// <summary>  
457             /// 验证一代身份证号(15位数)  
458             /// [长度为15位的数字;匹配对应省份地址;生日能正确匹配]  
459             /// </summary>  
460             /// <param name="input">待验证的字符串</param>  
461             /// <returns>是否匹配</returns>  
462             public static bool IsIDCard15(string input)
463             {
464                 //验证是否可以转换为15位整数  
465                 long l = 0;
466                 if (!long.TryParse(input, out l) || l.ToString().Length != 15)
467                 {
468                     return false;
469                 }
470                 //验证省份是否匹配  
471                 //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。  
472                 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,";
473                 if (!address.Contains(input.Remove(2) + ","))
474                 {
475                     return false;
476                 }
477                 //验证生日是否匹配  
478                 string birthdate = input.Substring(6, 6).Insert(4, "/").Insert(2, "/");
479                 DateTime dt;
480                 if (!DateTime.TryParse(birthdate, out dt))
481                 {
482                     return false;
483                 }
484                 return true;
485             }
486 
487             /// <summary>  
488             /// 验证二代身份证号(18位数,GB11643-1999标准)  
489             /// [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]  
490             /// </summary>  
491             /// <param name="input">待验证的字符串</param>  
492             /// <returns>是否匹配</returns>  
493             public static bool IsIDCard18(string input)
494             {
495                 //验证是否可以转换为正确的整数  
496                 long l = 0;
497                 if (!long.TryParse(input.Remove(17), out l) || l.ToString().Length != 17 || !long.TryParse(input.Replace('x', '0').Replace('X', '0'), out l))
498                 {
499                     return false;
500                 }
501                 //验证省份是否匹配  
502                 //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。  
503                 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,";
504                 if (!address.Contains(input.Remove(2) + ","))
505                 {
506                     return false;
507                 }
508                 //验证生日是否匹配  
509                 string birthdate = input.Substring(6, 8).Insert(6, "/").Insert(4, "/");
510                 DateTime dt;
511                 if (!DateTime.TryParse(birthdate, out dt))
512                 {
513                     return false;
514                 }
515                 //校验码验证  
516                 //校验码:  
517                 //(1)十七位数字本体码加权求和公式   
518                 //S = Sum(Ai * Wi), i = 0, ... , 16 ,先对前17位数字的权求和   
519                 //Ai:表示第i位置上的身份证号码数字值   
520                 //Wi:表示第i位置上的加权因子   
521                 //Wi: 7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2   
522                 //(2)计算模   
523                 //Y = mod(S, 11)   
524                 //(3)通过模得到对应的校验码   
525                 //Y: 0 1 2 3 4 5 6 7 8 9 10   
526                 //校验码: 1 0 X 9 8 7 6 5 4 3 2   
527                 string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');
528                 string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');
529                 char[] Ai = input.Remove(17).ToCharArray();
530                 int sum = 0;
531                 for (int i = 0; i < 17; i++)
532                 {
533                     sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString());
534                 }
535                 int y = -1;
536                 Math.DivRem(sum, 11, out y);
537                 if (arrVarifyCode[y] != input.Substring(17, 1).ToLower())
538                 {
539                     return false;
540                 }
541                 return true;
542             }
543 
544             /// <summary>  
545             /// 验证身份证号(不区分一二代身份证号)  
546             /// </summary>  
547             /// <param name="input">待验证的字符串</param>  
548             /// <returns>是否匹配</returns>  
549             public static bool IsIDCard(string input)
550             {
551                 if (input.Length == 18)
552                     return IsIDCard18(input);
553                 else if (input.Length == 15)
554                     return IsIDCard15(input);
555                 else
556                     return false;
557             }
558 
559             /// <summary>  
560             /// 验证经度  
561             /// </summary>  
562             /// <param name="input">待验证的字符串</param>  
563             /// <returns>是否匹配</returns>  
564             public static bool IsLongitude(string input)
565             {
566                 ////范围为-180~180,小数位数必须是1到5位  
567                 //string pattern = @"^[-\+]?((1[0-7]\d{1}|0?\d{1,2})\.\d{1,5}|180\.0{1,5})$";  
568                 //return IsMatch(input, pattern);  
569                 float lon;
570                 if (float.TryParse(input, out lon) && lon >= -180 && lon <= 180)
571                     return true;
572                 else
573                     return false;
574             }
575 
576             /// <summary>  
577             /// 验证纬度  
578             /// </summary>  
579             /// <param name="input">待验证的字符串</param>  
580             /// <returns>是否匹配</returns>  
581             public static bool IsLatitude(string input)
582             {
583                 ////范围为-90~90,小数位数必须是1到5位  
584                 //string pattern = @"^[-\+]?([0-8]?\d{1}\.\d{1,5}|90\.0{1,5})$";  
585                 //return IsMatch(input, pattern);  
586                 float lat;
587                 if (float.TryParse(input, out lat) && lat >= -90 && lat <= 90)
588                     return true;
589                 else
590                     return false;
591             }
592             #endregion
593         }

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转载自blog.csdn.net/qq_38350514/article/details/83820938