private void BtnMemorySub_Click(object sender, EventArgs e)
{
double Num2, Num3;
Num2 = Double.Parse(txtShow.Text);
Num3 = calc.Memory - Num2;
txtMemory.Text = Num3.ToString();
}
private void button22_Click(object sender, EventArgs e)
{
double Num2, Num3;
Num2 = Double.Parse(textBox1.Text);
Num3 = memory - Num2;
textBox2.Text = Num3.ToString();
}
private void memory_add_Click(object sender, EventArgs e)
{
double Num2, Num3;
Num2 = Double.Parse(textBox.Text);
Num3 = memory + Num2;
textBox2.Text = Num3.ToString();
}
/// <summary>
/// 100以内3个数的加减法运算
/// </summary>
/// <returns>算式</returns>
public string Expression1003()
{
if (CaseNum1 == 0)
{
if (CaseNum2 == 0)
{
if (this.Num1 + this.Num2 + this.Num3 <= 100)
{
return(Num1.ToString() + "+" + Num2.ToString() + "+" + Num3.ToString());
}
else
{
return(null);
}
}
else
{
if (this.Num1 + this.Num2 - this.Num3 <= 100 && this.Num1 + this.Num2 - this.Num3 >= 0)
{
return(Num1.ToString() + "+" + Num2.ToString() + "-" + Num3.ToString());
}
else
{
return(null);
}
}
}
else
{
if (CaseNum2 == 0)
{
if (this.Num1 - this.Num2 >= 0 && this.Num1 - this.Num2 + this.Num3 <= 100)
{
return(Num1.ToString() + "-" + Num2.ToString() + "+" + Num3.ToString());
}
else
{
return(null);
}
}
else
{
if (this.Num1 - this.Num2 - this.Num3 >= 0)
{
return(Num1.ToString() + "-" + Num2.ToString() + "-" + Num3.ToString());
}
else
{
return(null);
}
}
}
}
private void button6_Click(object sender, EventArgs e)
{
double Num1, Num2;
if (double.TryParse(textNum1.Text, out Num1) && (double.TryParse(textNum2.Text, out Num2)))
{
double Num3;
Num3 = Num1 / Num2;
textNum3.Text = Num3.ToString("N2");
}
else
{
MessageBox.Show("Valores Invalidos");
}
}
