private void txtAlarmPhone_KeyPress(object sender, KeyPressEventArgs e)
{
if ((e.KeyChar < 48 || e.KeyChar > 57) && e.KeyChar != 8)
{
e.Handled = true;
}
}
设置只能输入数字
private void txtAlarmPhone_KeyPress(object sender, KeyPressEventArgs e)
{
if ((e.KeyChar < 48 || e.KeyChar > 57) && e.KeyChar != 8)
{
e.Handled = true;
}
}
设置只能输入数字