private void btnadd_Click(object sender, EventArgs e)
{
//加号场景,四种吧?
//1.计算器加载完后开始就点击(最开始点击)
switch (operateProcess)
{
//2.输入完左操作数后点击
case OperateProcess.LeftNum:
operateSign = "+";
tbOperateNumEditing.Text = "";
operateProcess = OperateProcess.RightNum;
break;
//3.输入完右操作数后点击
case OperateProcess.RightNum:
switch (operateSign)
{
case "+":
jsResult = leftNum + rightNum;
break;
}
tbOperateNumEditing.Text = jsResult.ToString();
leftNum = jsResult;
operateProcess = OperateProcess.Result;
break;
//4.多次重复点击
case OperateProcess.Result:
break;
}
}
private void btnac_Click(object sender, EventArgs e)
{
tbOperateNumEditing.Text = "";
leftNum = 0;
rightNum = 0;
jsResult = 0;
operateProcess = OperateProcess.LeftNum;
}
private void btn0_Click(object sender, EventArgs e)
{
//所有的数字都调用该方法,具体思路如下
Button b = (Button)sender;
if (tbOperateNumEditing.Text != "0")
{
switch (operateProcess)
{
//1.若正在编辑,则将后面输入的值累加到第一操作数后
case OperateProcess.LeftNum:
tbOperateNumEditing.Text += b.Text;
tbOperateNumRecord.Text += b.Text;
leftNum = double.Parse(tbOperateNumEditing.Text);
break;
//2.否则,将后面输入的值依序累加到第二操作数
case OperateProcess.RightNum:
tbOperateNumEditing.Text += b.Text;
tbOperateNumRecord.Text += b.Text;
rightNum = double.Parse(tbOperateNumEditing.Text);
break;
//3.若现在是点完=号出来结果了,这次再点击数字,应该是什么操作呢?
case OperateProcess.Result:
if (!string.IsNullOrEmpty(tbOperateNumRecord.Text))
{
tbOperateNumEditing.Text = b.Text;
tbOperateNumRecord.Text += b.Text;
rightNum = double.Parse(tbOperateNumEditing.Text);
operateProcess = OperateProcess.RightNum;
}
else
{
tbOperateNumEditing.Text = b.Text;
tbOperateNumRecord.Text += b.Text;
leftNum = double.Parse(tbOperateNumEditing.Text);
operateProcess = OperateProcess.LeftNum;
}
break;
}
}
else
{
return;
}
}
private void btn0_Click(object sender, EventArgs e)
{
//就比如这里
//所有的数字都调用该方法,具体思路如下
Button b = (Button)sender;
//0.这里其实还有场景呢
switch (operateProcess)
{
//1.若正在编辑,则将后面输入的值累加到第一操作数后
case OperateProcess.LeftNum:
tbOperateNumEditing.Text += b.Text;
leftNum = double.Parse(tbOperateNumEditing.Text);
break;
//2.否则,将后面输入的值依序累加到第二操作数
case OperateProcess.RightNum:
tbOperateNumEditing.Text += b.Text;
rightNum = double.Parse(tbOperateNumEditing.Text);
break;
//3.若现在是点完=号出来结果了,这次再点击数字,应该是什么操作呢?
case OperateProcess.Result:
tbOperateNumEditing.Text = b.Text;
rightNum = double.Parse(tbOperateNumEditing.Text);
operateProcess = OperateProcess.RightNum;
break;
}
//1.如果文本框中第一位是"0"只能输入"0.";
//2.如果文本框中第一位是"0"不能在输入"0";
//3.如果文本框中第一位是"0"输入其他数字"0"自动删除
if (tbOperateNumEditing.Text == "0")
{
tbOperateNumEditing.Text = "0.";
}
//1.检测第一操作数(左操作数)是否正在编辑中
}
private void btnequal_Click(object sender, EventArgs e)
{
operateProcess = OperateProcess.Result;
switch (operateSign)
{
case "+":
jsResult = leftNum + rightNum;
break;
case "-":
jsResult = leftNum - rightNum;
break;
case "*":
jsResult = leftNum * rightNum;
break;
case "/":
jsResult = leftNum / rightNum;
break;
}
leftNum = jsResult;
tbOperateNumEditing.Text = jsResult.ToString();
}
private void btnequal_Click(object sender, EventArgs e)
{
//通过开关进行判断;
switch (operateProcess)
{
//1.检测为左操作数后清空文本框;
case OperateProcess.LeftNum:
break;
//2.检测为右操作数后的运算;
case OperateProcess.RightNum:
switch (operateSign)
{
case "+":
jsResult = leftNum + rightNum;
break;
case "-":
jsResult = leftNum - rightNum;
break;
case "*":
jsResult = leftNum * rightNum;
break;
case "/":
jsResult = leftNum / rightNum;
break;
}
tbOperateNumEditing.Text = jsResult.ToString();
operateProcess = OperateProcess.Result;
leftNum = jsResult;
tbOperateNumRecord.Text = "";
break;
//3.检测为结果操作数后的运算;
case OperateProcess.Result:
switch (operateSign)
{
case "+":
jsResult += rightNum;
break;
case "-":
jsResult -= rightNum;
break;
case "*":
jsResult *= rightNum;
break;
case "/":
jsResult /= rightNum;
break;
}
tbOperateNumEditing.Text = jsResult.ToString();
operateProcess = OperateProcess.Result;
leftNum = jsResult;
tbOperateNumRecord.Text = "";
break;
}
}
private void btnadd_Click(object sender, EventArgs e)
{
//1.计算器加载完后开始就点击(最开始点击)
switch (operateProcess)
{
//2.输入完左操作数后点击
case OperateProcess.LeftNum:
operateSign = ((Button)sender).Text;
tbOperateNumEditing.Text = "";
tbOperateNumRecord.Text += " " + ((Button)sender).Text + " ";
operateProcess = OperateProcess.RightNum;
rightNum = leftNum;
break;
//3.输入完右操作数后点击
case OperateProcess.RightNum:
if (!string.IsNullOrEmpty(tbOperateNumEditing.Text))
{
switch (operateSign)
{
case "+":
jsResult = leftNum + rightNum;
break;
case "-":
jsResult = leftNum - rightNum;
break;
case "*":
jsResult = leftNum * rightNum;
break;
case "/":
jsResult = leftNum / rightNum;
break;
}
tbOperateNumEditing.Text = jsResult.ToString();
operateProcess = OperateProcess.Result;
leftNum = jsResult;
rightNum = jsResult;
operateSign = ((Button)sender).Text;
tbOperateNumRecord.Text += " " + ((Button)sender).Text + " ";
break;
}
else
{
operateSign = ((Button)sender).Text;
tbOperateNumRecord.Text = tbOperateNumRecord.Text.Remove(tbOperateNumRecord.Text.Length - 3);
tbOperateNumRecord.Text += " " + ((Button)sender).Text + " ";
break;
}
//4.多次重复点击
case OperateProcess.Result:
operateSign = ((Button)sender).Text;
if (!string.IsNullOrEmpty(tbOperateNumRecord.Text))
{
tbOperateNumRecord.Text = tbOperateNumRecord.Text.Remove(tbOperateNumRecord.Text.Length - 3);
tbOperateNumRecord.Text += " " + ((Button)sender).Text + " ";
}
else
{
tbOperateNumRecord.Text = tbOperateNumEditing.Text;
tbOperateNumEditing.Text = "";
tbOperateNumRecord.Text += " " + ((Button)sender).Text + " ";
rightNum = leftNum;
}
break;
}
}
