//獲取得到輸入的身份證號碼
                string identityCard = textBox_IdentityCard.Text.Trim();

                if (string.IsNullOrEmpty(identityCard))
                {
                    //身份證號碼不能為空，如果為空返回
                    MessageBox.Show("身份證號碼不能為空！");
                    if (textBox_IdentityCard.CanFocus)
                    {
                        textBox_IdentityCard.Focus();
 
//設定當前輸入焦點為textBox_IdentityCard
                    }
                    return;
                }
                else
                {
                    //身份證號碼只能為15位或18位其它不合法
                    if (identityCard.Length != 15 && identityCard.Length != 18)
                    {
                        MessageBox.Show(
 
"身份證號碼為15位或18位，請檢查！");
                        if (textBox_IdentityCard.CanFocus)
                        {
                            textBox_IdentityCard.Focus();
                        }
                        return;
                    }
                }

                string birthday = ""
 
;
                string sex = "";

                //處理18位的身份證號碼從號碼中得到生日和性別程式碼
                if (identityCard.Length == 18)
                {
                    birthday = identityCard.Substring(6, 4) + "-" + identityCard.Substring(10, 2) + "-" + identityCard.Substring(12, 2);
                    sex = identityCard.Substring(14, 3);
                }
                //處理15位的身份證號碼從號碼中得到生日和性別程式碼
                if (identityCard.Length == 15)
                {
                    birthday = "19" + identityCard.Substring(6, 2) + "-" + identityCard.Substring(8, 2) + "-" + identityCard.Substring(10, 2);
                    sex = identityCard.Substring(12, 3);
                }
                textBox_Birthday.Text = birthday;
                //性別程式碼為偶數是女性奇數為男性
                if (int.Parse(sex) % 2 == 0)
                {
                    this.comboBox_Sex.Text = "女";
                }
                else
                {
                    this.comboBox_Sex.Text = "男";
                }