Regular Expression (1)

Regular Expression of phone number (mobile phone number, 3-4 area code, 7-8 live video number, 1-4 extension Code) (\ d {11 }) | ^ (\ d {7, 8}) | (\ d {4} | \ d {3})-(\ d {7, 8 }) | (\ d {4} | \ d {3})-(\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {1}) | (\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {1}) $) matching format: 11-digit mobile phone number, 3-4-digit area code, 7-8-bit live video number, 1-4 extension numbers such as: 12345678901, 1234-12345678-1234 "^ \ d + $" // non-negative integer (positive integer + 0) "^ [0-9] * [1-9] [0-9] * $" // positive integer "^ (-\ d +) | (0 + )) $ "// non-positive integer (negative integer + 0)" ^-[0-9] * [1-9] [0-9] * $ "// negative integer" ^ -? \ D + $ "// integer" ^ \ d + (\. \ d + )? $ "// Non-negative floating point number (Positive floating point number + 0)" ^ ([0-9] + \. [0-9] * [1-9] [0-9] *) | ([0-9] * [1-9] [0-9] * \. [0-9] +) | ([0-9] * [1-9] [0-9] *) $ "// Positive floating point number" ^ (-\ d + (\. \ d + )?) | (0 + (\. 0 + )?)) $ "// Non-Positive floating point number (negative floating point number + 0)" ^ (-([0-9] + \. [0-9] * [1-9] [0-9] *) | ([0-9] * [1-9] [0-9] * \. [0-9] +) | ([0-9] * [1-9] [0-9] *) $ "// negative floating point number" ^ (-? \ D +) (\. \ d + )? $ "// Floating point number" ^ [A-Za-z] + $ "// A string consisting of 26 English letters" ^ [A-Z] + $ "// consists of 26 a string consisting of uppercase letters "^ [a-z] + $" // a string consisting of lowercase letters 26 "^ [A-Za-z0-9] + $" // composed A string consisting of a number and 26 English letters "^ \ w + $" // a string consisting of a number, 26 English letters, or underscores "^ [\ w-] + (\. [\ w-] +) * @ [\ w-] + (\. [\ w-] +) + $ "// email address" ^ [a-zA-z] +: // (\ w + (-\ w + )*) (\. (\ w + (-\ w + )*))*(\? \ S *)? $ "// Url/^ 13 \ d {9} $/gi mobile phone number Regular Expression public static bool isvalid=eno (string inclueno) {const string regPattern = @ "^ (130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139) \ d {8} $"; return Regex. isMatch (regioneno, regPattern);} Regular Expression -- verify the mobile phone number: 13 [0-9] {9} www.2cto.com with 86 or + 86 before the mobile phone number: ^ (\ + 86) | (86 ))? (13) \ d {9} $ verify the phone number and mobile phone number at the same time :( ^ (\ d {3, 4 }-)? \ D {7, 8}) $ | (13 [0-9] {9}) extract the network link from the information: (h | H) (r | R) (e | E) (f | F) * = * ('| ")? (\ W | \/| \.) + ('| "| * |> )? Email Address in the extracted information: \ w + ([-+.] \ w +) * @ \ w + ([-.] \ w + )*\. \ w + ([-.] \ w +) * extract the image link in the information: (s | S) (r | R) (c | C) * = * ('| ")? (\ W | \/| \.) + ('| "| * |> )? Extract IP addresses from the information: (\ d + )\. (\ d + )\. (\ d + )\. (\ d +) extract the Chinese mobile phone number from the information: (86) * 0*13 \ d {9} extract the Chinese mobile phone number from the information: (\ d {3, 4 }\) | \ d {3, 4}-| \ s )? \ D {8} extract Chinese phone numbers (including mobile and landline phones) from the Information: (\ d {3, 4} \) | \ d {3, 4}-| \ s )? China zip code in \ d {7, 14} extracted information: [1-9] {1} (\ d +) {5} extracted Chinese ID card number: \ d {18} | \ d {15} extract the integer in the information: \ d + extract the floating point in the information (that is, the decimal point ):(-? \ D *)\.? \ D + extract any number in the information :(-? \ D *) (\. \ d + )? Extract Chinese strings from the information: [\ u4e00-\ u9fa5] * extract dual-byte strings (Chinese characters) in the Information: [^ \ x00-\ xff] *