//獲得隨機字符串,格式("str"+xxxx)
public string getRandomString(string name)
{
Random rad = new Random();
int value = rad.Next(1000, 10000);
string res = value.ToString();
string result = name + (DateTime.Now.ToString("yyyyMMdd")) + res;
return result;
}
正則表達式(匹配整數+浮點數)
/^(0|[1-9]\d*|[1-9]\d*\.\d+|0\.\d*[1-9]\d*)$/