【C#】获取数据库字段默认值

/// 

/// 获取数据库字段默认值
/// 
/// 
/// 
public static string DbDefaultToCSharp(string v)
{
    string str = "";
    //取时间
    if (v.Contains("getdate()"))
    {
        str = " = DateTime.Now";
    }
    //取数字
    str = getRegexResult(@"\(\((\d+)\)\)", v, "num");
    //取字符串
    if (str == "")
    {
        str = getRegexResult(@"\(N?'(.+)'\)", v, "string");
    }
    return str;
}