lin2491的专栏

[] private string GetLocalIp() { string hostname; IPHostEntry localhost; IPAddress localaddr; hostname = System.Net.Dns.GetHostName(); localhost = System.Net.Dns.GetHostByName(hostname); loca

string patternname = @"^[A-Za-z0-9_\u4E00-\u9FA5]{"+需要检查的字符长度+"}";             System.Text.RegularExpressions.Match m = System.Text.RegularExpressions.Regex.Match(需要检查的字符, patternname);