柚子快報(bào)邀請(qǐng)碼778899分享：替換正則表達(dá)式c#

http://yzkb.51969.com/

1、替換最后一個(gè)字符

??? dto.ContactPerson = dto.ContactPerson.ReplaceName("*");

??? ///

??? /// 替換最后一個(gè)字符串 ??? ///

??? /// ??? /// ??? /// ??? public static string ReplaceName(this string oldStr, string newStr) ??? { ??????? string pattern = @"(.)$"; ??????? string result = Regex.Replace(oldStr, pattern, newStr);

??????? return result; ??? }

2、替換除第一字符外其他都替換成*

??????? 注意：new string('*', m.Groups[2].Length) 是表示根據(jù)第一個(gè)字符后又幾個(gè)字符來生成相應(yīng)得*號(hào)來替換

?dto.ContactPerson = dto.ContactPerson.ReplaceName();

??? ///

??? /// 替換第一個(gè)字符后得其他字符串 ??? ///

??? /// ??? /// ??? /// ??? public static string ReplaceStr(this string oldStr) ??? { ??????? // 正則表達(dá)式：匹配第一個(gè)字符之后的所有字符 ??????? string pattern = "(.)(.*)"; ??????? string result = Regex.Replace(oldStr, pattern, m => m.Groups[1].Value + new string('*', m.Groups[2].Length));

??????? return result; ??? }

或則自定義替換成你想要得字符

dto.ContactPerson = dto.ContactPerson.ReplaceStr('-');

??? ///

??? /// 替換第一個(gè)字符后得其他字符串 ??? ///

??? /// ??? /// ??? /// ??? public static string ReplaceStr(this string oldStr, char newStr) ??? { ??????? // 正則表達(dá)式：匹配第一個(gè)字符之后的所有字符 ??????? string pattern = "(.)(.*)"; ??????? string result = Regex.Replace(oldStr, pattern, m => m.Groups[1].Value + new string(newStr, m.Groups[2].Length));

??????? return result; ??? }

?

3、隱藏手機(jī)號(hào)

???????? dto.ContactNumber = PhoneExtensions.GetPhoneHidden(demand.ContactNumber);

???????? ///

??????? /// 獲取隱藏中間四位的手機(jī)號(hào)碼 ??????? ///

??????? /// ??????? /// ??????? public static string GetPhoneHidden(this string phone, bool isValidateTelePhone = true) ??????? { ??????????? //如果固化則不隱藏 ??????????? if (isValidateTelePhone && IsTelePhoneNumber(phone)) ??????????? { ??????????????? return phone; ??????????? } ??????????? return Regex.Replace(phone, "(\\d{3})\\d{4}(\\d{4})", "$1****$2"); ??????? }

??????? ///

? ??????? /// 驗(yàn)證固定電話號(hào)碼 ? ??????? /// [3位或4位區(qū)號(hào)；區(qū)號(hào)可以用小括號(hào)括起來；區(qū)號(hào)可以省略；區(qū)號(hào)與本地號(hào)間可以用減號(hào)或空格隔開；可以有3位數(shù)的分機(jī)號(hào)，分機(jī)號(hào)前要加減號(hào)] ? ??????? ///

? ??????? /// 待驗(yàn)證的字符串 ? ??????? /// 是否匹配 ? ??????? public static bool IsTelePhoneNumber(string input) ??????? { ??????????? string pattern = @"^(((0\d2|0\d{2})[- ]?)?\d{8}|((0\d3|0\d{3})[- ]?)?\d{7})(-\d{3})?$"; ??????????? return IsMatch(input, pattern); ??????? }

柚子快報(bào)邀請(qǐng)碼778899分享：替換正則表達(dá)式c#

http://yzkb.51969.com/

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