正則表達式檢測IP地址與端口號是否合法,代碼如下:
正則表達式檢測IP地址
public static bool CheckAddress(string s)
{
bool isLegal = false;
Regex regex = new Regex(@"^((2[0-4]\d|25[0-5]|[1]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[1]?\d\d?)$");
Match match = regex.Match(s);//可以測試其他ip
//Match match = regex.Match("192.168.1.666");//可以測試其他ip
if (match.Success)
{
isLegal = true;
Console.WriteLine($"匹配");
Console.WriteLine($"match.Value:{match.Value}");
}
else
{
isLegal = false;
Console.WriteLine($"不匹配");
}
return isLegal;
}
正則表達式檢測端口號
public static bool CheckPort(string s)
{
bool isLegal = false;
Regex regex = new Regex(@"^[1-9]$|(^[1-9][0-9]$)|(^[1-9][0-9][0-9]$)|(^[1-9][0-9][0-9][0-9]$)|(^[1-6][0-5][0-5][0-3][0-5]$)");//CheckPort
//Match match = regex.Match("8087");//可以測試其他ip的端口0-65535
Match match = regex.Match(s);//可以測試其他ip
if (match.Success)
{
isLegal = true;
Console.WriteLine($"匹配");
Console.WriteLine($"match.Value:{match.Value}");
}
else
{
isLegal = false;
Console.WriteLine($"不匹配");
}
return isLegal;
}
正則表達式檢測IP地址與端口號是否合法
static bool CheckAddressPort(string s)
{
bool isLegal = false;
Regex regex = new Regex(@"^((2[0-4]\d|25[0-5]|[1]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[1]?\d\d?)\:([1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-6][0-5][0-5][0-3][0-5])$");//CheckAddressPort
Match match = regex.Match(s);
//Match match = regex.Match("192.168.1.2:33333"); //可以測試其他ip和端口
if (match.Success)
{
isLegal = true;
Console.WriteLine($"匹配");
Console.WriteLine($"match.Value:{match.Value}");
}
else
{
isLegal = false;
Console.WriteLine($"不匹配");
}
return isLegal;
}