國立暨南國際大學無紙化會議系統

歡迎資管同學下載 檔案為系學會版手冊

Love was spring
when feelings bloomed
as we first said hello
and looked into each other's eyes.

Love became summer
when passions rose
as we held hands
and said our vows.

Love turned to autumn
when we fell apart
as things went sour
and we just can't stay together.

Love changed to winter
when the nights grew cold
as we traveled life's road
without each other.

virtual abstract

override new

base.X();

static

protected public private

try{} catch(Exception ex){}

int dog2;
public int dog1 { set { dog2 = value; } get { return dog2; } }

int a, b;
CallRef(ref a, ref b);
public static void CallRef(ref int x, ref int y){...}

class Employee
{
private string info; //Private屬性，其他繼承的類別無法改變它的值
public string id, name, sex, position; //其他繼承的類別可以使用這些屬性
public int age, days, salary; //其他繼承的類別可以使用這些屬性

public void ShowPrivateInfo() //透過繼承類別呼叫ShowPrivateInfo()
{
info = "This is a program about class inheritance.";

Console.WriteLine(info);
}

public void ShowBaseInfo() //透過繼承類別呼叫ShowBaseInfo()
{
Console.WriteLine(position + "的基本資訊：") ;
Console.WriteLine("編號：[" + id + "]");
Console.WriteLine("姓名：[" + name + "]");
Console.WriteLine("性別：[" + sex + "]");
Console.WriteLine("年齡：[" + age+ "]");
Console.WriteLine("本月工作天數：[" + days + "]");
}
}

//-----------------------------------------------------------------------------------------

class Manager : Employee //Manager繼承Employee，但薪水算法不同
{
public void CountSalary() //Manager的薪水計算方式：將工作天數帶入薪水計算公式
{
salary = 60000 + days * 1000;

Console.WriteLine(position + "的本月薪水：[" + salary + "]");
}
}

class Normal : Employee //Normal繼承Employee，但薪水算法不同
{
public void CountSalary() //Normal的薪水計算方式：將工作天數帶入薪水計算公式
{
salary = days * 1500;

Console.WriteLine(position + "的本月薪水：[" + salary + "]");
}
}

class HourCount : Employee //HourCount繼承Employee，但薪水算法不同
{
public void CountSalary() //HourCount的薪水計算方式：將工作天數帶入薪水計算公式
{
salary = days * 100 * 8 ;

Console.WriteLine(position + "的本月薪水：[" + salary + "]");
}
}

//-----------------------------------------------------------------------------------------

class Program
{
static void Main(string[] args)
{
string choice;
bool exit = false;

Console.Write("請選擇要輸的的員工資訊：(a)經理 (b)一般員工 (c)時薪人員 (d)離開程式：");
choice = Console.ReadLine();

while (exit == false)
{
if (choice == "a")
{
Manager mm = new Manager(); //宣告一個Manager類別

mm.position = "經理";
mm.ShowPrivateInfo();

//輸入經理的各項資訊
Console.WriteLine("請輸入" + mm.position + "訊息");
Console.Write("編號：");
mm.id = Console.ReadLine();
Console.Write("姓名：");
mm.name = Console.ReadLine();
Console.Write("性別：");
mm.sex = Console.ReadLine();
Console.Write("年齡：");
mm.age = Int32.Parse(Console.ReadLine());
Console.Write("本月工作天數：");
mm.days = Int32.Parse(Console.ReadLine());

Console.WriteLine("-----------------------------------------------------");

//顯示經理的基本訊息與該月薪水
mm.ShowBaseInfo();
mm.CountSalary();
}
else if (choice == "b")
{
Normal nn = new Normal();

nn.position = "一般員工";
nn.ShowPrivateInfo();

//輸入一般員工的各項資訊
Console.WriteLine("請輸入" + nn.position + "訊息");
Console.Write("編號：");
nn.id = Console.ReadLine();
Console.Write("姓名：");
nn.name = Console.ReadLine();
Console.Write("性別：");
nn.sex = Console.ReadLine();
Console.Write("年齡：");
nn.age = Int32.Parse(Console.ReadLine());
Console.Write("本月工作天數：");
nn.days = Int32.Parse(Console.ReadLine());

Console.WriteLine("-----------------------------------------------------");

//顯示一般員工的基本訊息與該月薪水
nn.ShowBaseInfo();
nn.CountSalary();
}
else if (choice == "c")
{
HourCount hh = new HourCount();

hh.position = "時薪人員";
hh.ShowPrivateInfo();

//輸入時薪人員的各項資訊
Console.WriteLine("請輸入" + hh.position + "訊息");
Console.Write("編號：");
hh.id = Console.ReadLine();
Console.Write("姓名：");
hh.name = Console.ReadLine();
Console.Write("性別：");
hh.sex = Console.ReadLine();
Console.Write("年齡：");
hh.age = Int32.Parse(Console.ReadLine());
Console.Write("本月工作天數：");
hh.days = Int32.Parse(Console.ReadLine());

Console.WriteLine("-----------------------------------------------------");

//顯示時薪人員的基本訊息與該月薪水
hh.ShowBaseInfo();
hh.CountSalary();
}
else if (choice == "d") //按 d 離開程式
{
exit = true;
break;
}
else //輸入錯誤時顯示錯誤訊息
{
Console.WriteLine("-----------------------------------------------------");
Console.WriteLine("請輸入正確的選項或是按(d)離開程式!!");
}

Console.WriteLine("-----------------------------------------------------");
Console.Write("請選擇要輸的的員工資訊：(a)經理 (b)一般員工 (c)時薪人員 (d)離開程式：");
choice = Console.ReadLine();
}
}
}

data:
Employee 阿狗 15.5
Manager 阿貓 40
code:

using System;
using System.IO;
class Employee
{

private string name;
protected float billingRate;
protected float salary;

public Employee(string name, float billingRate)
{
this.name = name;
this.billingRate = billingRate;
}

public float CalculateCharge(float hours)
{
return (salary = hours * billingRate);
}
public float GetSalary()
{
return salary;
}
public string TypeName()
{
return ("Employee");
}
}

class Manager : Employee
{
private float allowance;

public Manager(string name, float billingRate): base(name, billingRate)
{
allowance = 1000;
}
public new float CalculateCharge(float hours)
{
if (hours < 1.0F)
hours = 1.0F;
return (salary = hours * billingRate+allowance);
}

public new string TypeName()
{
return ("Civil Employee");
}
}
class Test
{
public static void Main()
{
Console.Write("請輸入檔案位置：");
string path2 = Console.ReadLine();
StreamReader sr = new StreamReader(@path2,System.Text.Encoding.Default);
string str = sr.ReadToEnd();
string[] s = str.Split('\n');
Employee[] e = new Employee[s.Length];
for (int i = 0; i < s.Length; i++)
{
string[] tmp = s[i].Split(' ');
if (tmp[0] == "Manager")
e[i] = new Manager(tmp[1], float.Parse(tmp[2]));
else if (tmp[0] == "Employee")
e[i] = new Employee(tmp[1], float.Parse(tmp[2]));
}
for (int i = 0; i < e.Length; i++)
{
e[i].CalculateCharge(i * 1.0F + 20.0F);
Console.WriteLine("{0} charge = {1}", e[i].TypeName(), e[i].GetSalary());
}

}
}

select dog.Provider_no from provider dog
where dog.Provider_no not in



(select distinct Provider.Provider_no from



(
SELECT Provider.Provider_no,p1.Item_No
FROM Provide p1,Provider
where p1.Provider_no='001' and Provider.Provider_no not in
(SELECT provide.Provider_no FROM Provider INNER JOIN provide ON Provider.Provider_no = provide.Provider_no where p1.Item_no = provide.Item_no)
)



)

http://studentweb.ncnu.edu.tw/97213529/SQL.aspx