static void Main(string[] args)
{
try
{
Console.Write("请输入数字A：");
string strNumberA = Console.ReadLine();
Console.Write("请选择运算符号(+、-、*、/)：");
string strOperate = Console.ReadLine();
Operation oper;
oper = OperationFactory.createOperate(strOperate);
Console.Write("请输入数字B：");
string strNumberB = Console.ReadLine();
string strResult = "";
oper.NumberA = Convert.ToDouble(strNumberA);
oper.NumberB = Convert.ToDouble(strNumberB);
strResult = oper.GetResult().ToString();
Console.WriteLine("结果是：" + strResult);
//Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("您的输入有错：" + ex.Message);
}
}
private void button_Operation_Click(object sender, EventArgs e)
{
string strOperator;
try
{
strOperator = textBox_Operator.Text.Trim();
//if (strOperator != "+" && strOperator != "-" && strOperator != "*" && strOperator != "/")
// throw new Exception("操作符输入错误");
Operation Opr = OperationFactory.CreateOperation(strOperator);
Opr.NumberA = Convert.ToDouble(textBox_NumberA.Text.Trim());
Opr.NumberB = Convert.ToDouble(textBox_NumberB.Text.Trim());
textBox_Result.Text = Opr.GetResult().ToString();
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
textBox_Result.Text = "";
throw;
}
//finally
//{
// MessageBox.Show("欢迎！");
//}
}
/// <summary>
/// 根据运算符和两个数字计算结果
/// 调用简单工厂模式生成的类
/// </summary>
private void Evaluate()
{
Operation oper;
//根据不同的对象生成不同的类，多态!
switch (currentOperator)
{
case EnumOperator.None:
break;
//加
case EnumOperator.Add:
oper = OperationFactory.createOpeate(EnumOperator.Add);
oper.NumberA = numSum;
oper.NumnberB = currentValue;
numSum = oper.GetResult();
break;
//减
case EnumOperator.Minus:
oper = OperationFactory.createOpeate(EnumOperator.Minus);
oper.NumberA = numSum;
oper.NumnberB = currentValue;
numSum = oper.GetResult();
break;
//乘
case EnumOperator.Multiply:
oper = OperationFactory.createOpeate(EnumOperator.Multiply);
oper.NumberA = numSum;
oper.NumnberB = currentValue;
numSum = oper.GetResult();
break;
//除
case EnumOperator.Divide:
//判断结果
if (currentValue != 0)
{
oper = OperationFactory.createOpeate(EnumOperator.Divide);
oper.NumberA = numSum;
oper.NumnberB = currentValue;
numSum = oper.GetResult();
}
else
{
MessageBox.Show("除数不能为0哦，亲~", "出错了~");
}
break;
}
currentValue = 0;
currentOperator = EnumOperator.None;
}
private void button1_Click(object sender, EventArgs e)
{
//this.label1.Text = this.textBox1.Text + comboBox1.SelectedItem + this.textBox2.Text;
String str = comboBox1.GetItemText(comboBox1.SelectedItem);
Operation oper = OperationFactory.createOperation(str);
try
{
oper.num1 = Convert.ToDouble(this.textBox1.Text);
oper.num2 = Convert.ToDouble(this.textBox2.Text);
}catch (Exception)
{
throw;
}
double result = oper.getResult();
this.label1.Text = Convert.ToString("result =" + result);
}
private void button_Operation_Click(object sender, EventArgs e)
{
string strOperator;
//try
//{
strOperator = textBox_Operator.Text.Trim();
Operation Opr = OperationFactory.CreateOperation(strOperator);
Opr.NumberA = Convert.ToDouble(textBox_NumberA.Text.Trim());
Opr.NumberB = Convert.ToDouble(textBox_NumberB.Text.Trim());
textBox_Result.Text = Opr.GetResult().ToString();
//}
//catch (System.Exception ex)
//{
// MessageBox.Show(ex.Message);
// textBox_Result.Text = "";
//}
}
static void Main(string[] args)
{
List <string> listopersign = new List <string>();
listopersign.Add("+");
listopersign.Add("-");
listopersign.Add("*");
listopersign.Add("/");
OperationFactory fac = new OperationFactory();
foreach (var item in listopersign)
{
Operation oper = fac.createOperate(item);
oper.NumberA = 88.8f;
oper.NumberB = 11.1f;
double result = oper.GetResult();
Console.WriteLine("{0:#.###} {1} {2:#.###} = {3:#.###}", oper.NumberA, item, oper.NumberB, result);
}
Console.Read();
}
private void btnResult_Click(object sender, EventArgs e)
{
try
{
string strNumberA = TextNum1.Text;
string strOperate = OperatorBox.Text;
Operation oper;
oper = OperationFactory.createOperate(strOperate);
string strNumberB = TextNum2.Text;
string strResult = "";
oper.NumberA = Convert.ToDouble(strNumberA);
oper.NumberB = Convert.ToDouble(strNumberB);
strResult = oper.GetResult().ToString();
TextResult.Text = strResult;
}
catch (Exception ex)
{
TextResult.Text = ex.Message;
}
}
private void btnOperation_Click(object sender, EventArgs e)
{
Button btn = sender as Button;
Operation oper;
switch (btn.Name)
{
case "btnAdd":
equalStatus = false;
multiDeal();
calShow += "+";
txtResual.Text = calShow;
setBtnEnableMethon(false);
break;
case "btnSub":
equalStatus = false;
multiDeal();
calShow += "-";
txtResual.Text = calShow;
setBtnEnableMethon(false);
break;
case "btnMul":
equalStatus = false;
multiDeal();
calShow += "*";
txtResual.Text = calShow;
setBtnEnableMethon(false);
break;
case "btnDiv":
equalStatus = false;
multiDeal();
calShow += "/";
txtResual.Text = calShow;
setBtnEnableMethon(false);
break;
case "btnEqual":
equalStatus = true;
multiDeal();
break;
case "btnPoint":
if (equalStatus) //等于号按过之后点数字则直接清除原来的结果
{
equalStatus = false;
calShow = "";
resultDouble = 0.0;
txtResual.Text = "";
}
oper = OperationFactory.createOperation(".");
calShow = oper.addPoint(calShow);
txtResual.Text = calShow;
setBtnEnableMethon(true);
break;
case "btnDel":
if (calShow.Length != 0)
{
calShow = calShow.Substring(0, calShow.Length - 1); //删除最后一个字符
}
txtResual.Text = calShow;
setBtnEnableMethon(true);
break;
case "btnClear":
calShow = "";
resultDouble = 0;
txtResual.Text = "";
break;
case "btnSquareRoot":
multiDeal(); //先得出前面表达式的值
oper = OperationFactory.createOperation("SquareRoot");
resultDouble = oper.getResult();
calShow = resultDouble.ToString();
txtResual.Text = calShow;
break;
case "btnPosAndNeg":
multiDeal(); //先计算结果，再来加正负号
oper = OperationFactory.createOperation("+/-");
calShow = oper.posAndNeg(calShow);
txtResual.Text = calShow;
break;
default:
break;
}
}
private void multiDeal()
{
try
{
//将前面的表达式的值计算出来
Regex reg = new Regex(@"(\+|\-)?(\d+)(\.\d+)?(\+|\-|\*|\/)(\+|\-)?(\d+)(\.\d+)?");
var res = reg.Match(calShow).Groups;
//res[0] 整个匹配的表达式
//res[1] 第一个操作数的符号
//res[2] 第一个操作数的整数部分
//res[3] 第一个操作数的小数部分
//res[4] 操作符
//res[5] 第二个操作数的符号
//res[6] 第二个操作数的整数部分
//res[7] 第而个操作数的小数部分
Operation oper;
switch (res[4].ToString())
{
case "+":
oper = OperationFactory.createOperation("+");
oper.NumberA = Convert.ToDouble(res[1].ToString() + res[2].ToString() + res[3].ToString());
oper.NumberB = Convert.ToDouble(res[5].ToString() + res[6].ToString() + res[7].ToString());
resultDouble = oper.getResult();
calShow = resultDouble.ToString();
break;
case "-":
oper = OperationFactory.createOperation("-");
oper.NumberA = Convert.ToDouble(res[1].ToString() + res[2].ToString() + res[3].ToString());
oper.NumberB = Convert.ToDouble(res[5].ToString() + res[6].ToString() + res[7].ToString());
resultDouble = oper.getResult();
calShow = resultDouble.ToString();
break;
case "*":
oper = OperationFactory.createOperation("*");
oper.NumberA = Convert.ToDouble(res[1].ToString() + res[2].ToString() + res[3].ToString());
oper.NumberB = Convert.ToDouble(res[5].ToString() + res[6].ToString() + res[7].ToString());
resultDouble = oper.getResult();
calShow = resultDouble.ToString();
break;
case "/":
oper = OperationFactory.createOperation("/");
oper.NumberA = Convert.ToDouble(res[1].ToString() + res[2].ToString() + res[3].ToString());
oper.NumberB = Convert.ToDouble(res[5].ToString() + res[6].ToString() + res[7].ToString());
if (oper.NumberB == 0)
{
throw new Exception("除数不能为0！");
}
resultDouble = oper.getResult();
calShow = resultDouble.ToString();
break;
default:
break;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "警告");
}
txtResual.Text = calShow;
}
public Operation SetOperation(string type)
{
return(OperationFactory.CreateOperation(type));
}