Unity InputField输入框时间校验

public static class InputFiledDateTimeFormat
{

    /// <summary>
    /// 输入框时间校验
    /// </summary>
    /// <param name="input"></param>
    public static void DateTimeCkeck(this InputField input)
    {
        //监听输入字符
        input.onValueChanged.AddListener(e =>
        {
            if (e.Length == 5)
            {
                if (System.Text.RegularExpressions.Regex.IsMatch(e.Substring(4, 1), @"([0-9]\d*\.?\d*)|(0\.\d*[1-9])"))
                {
                    input.text = e.Substring(0, 4) + "-" + e.Substring(4);
                    input.MoveTextEnd(false);
                }
                else
                {
                    input.text = e.Substring(0, 4);
                    input.MoveTextEnd(false);
                }
            }
            else if (e.Length == 8)
            {
                if (System.Text.RegularExpressions.Regex.IsMatch(e.Substring(7, 1), @"([0-9]\d*\.?\d*)|(0\.\d*[1-9])"))
                {
                    input.text = e.Substring(0, 7) + "-" + e.Substring(7);
                    input.MoveTextEnd(false);
                }
                else
                {
                    input.text = e.Substring(0, 7);
                    input.MoveTextEnd(false);
                }
            }
            else
            {
                if (!System.Text.RegularExpressions.Regex.IsMatch(e, @"([0-9]\d*\.?\d*)|(0\.\d*[1-9])"))
                {
                    input.text = "";
                }
            }
        });

        //编辑结束后校验
        input.onEndEdit.AddListener(e =>
        {
            if (e.Length < 6)
            {
                MsgBox.instance.Show(true, "请输入完整时间", 1);
                input.ActivateInputField();
                return;
            }

        });

    }

}