可提高学习
private void buttonClick(object sender, EventArgs e)
{
if (textBox1.Text == "0.0")
{
textBox1.Text = "";
}
textBox1.Text = textBox1.Text + ((Button)sender).Text;
}
private void buttonClick1(object sender, EventArgs e)
{
try
{
Par0 = Double.Parse(textBox1.Text);
}
catch
{
MessageBox.Show("请输入正确的数字,如:1547", "输入错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
FuH=((Button)sender).Text;
X = textBox1.Text;
textBox1.Text = "0.0";
}