string test = "adc123&&&";
bool te = false;
//字母
Regex reg = new Regex("[a-zA-Z]*");
if (reg.Match(test).Success)
{
te = true;
}
//数字
reg = new Regex("[0-9]*");
if (reg.Match(test).Success)
{
te = true;
}
bool te = false;
//字母
Regex reg = new Regex("[a-zA-Z]*");
if (reg.Match(test).Success)
{
te = true;
}
//数字
reg = new Regex("[0-9]*");
if (reg.Match(test).Success)
{
te = true;
}
Match m1= Regex.Match(str, @"[a-zA-Z]");
Match m2 =Regex.Match(str,@"[^\w]");
Match m3= Regex.Match(str,@"[\d]");
if (m1.Success && m2.Success && m3.Success)
{
Console.Write("Succeed!");
}
else
{
Console.Write("Failure!");
}