乘法计算器
QQ图片20181018104014.png
private void button1_Click(object sender, EventArgs e)
{
float num1 = 0;
float num2 = 0;
float result = 0;
num1=float.Parse(textBox1.Text);
num2=float.Parse(textBox2.Text);
result=num1*num2;
textBox3.Text=result.ToString();
}
private void button2_Click(object sender, EventArgs e)
{
textBox1.Text = "";
textBox2.Text = "";
textBox3.Text = "";
