/**
* Generated from @assert (7,3) == 4.
*
* @covers Calculator::sub
*/
public function testSub()
{
$this->assertEquals(4, $this->object->sub(7, 3));
}
}
function div()
{
$this->result = $this->fristnumb / $this->nextnumb;
echo $this->result;
}
}
$num1 = $_POST['num1'];
$num2 = $_POST['num2'];
$char = $_POST['char'];
switch ($char) {
case '+':
$add = new Calculator($num1, $num2);
$add->add();
break;
case '-':
$sub = new Calculator($num1, $num2);
$sub->sub();
break;
case '*':
$mul = new Calculator($num1, $num2);
$mul->mul();
break;
case '/':
$div = new Calculator($num1, $num2);
$div->div();
break;
default:
echo "输入有误";
break;
}
<form method="post">
<input type="number" name="number1">
<input type="text" name="operator">
<input type="number" name="number2">
<input type="submit" name="calculator" value="Calculate">
</form>
<?php
$calculator1 = new Calculator();
if (isset($_POST['calculator'])) {
$number1 = $_POST['number1'];
$number2 = $_POST['number2'];
$operator = $_POST["operator"];
if ($operator == "+") {
$calculator1->add($number1, $number2);
echo $calculator1->getResult();
} elseif ($operator == "-") {
$calculator1->sub($number1, $number2);
echo $calculator1->getResult();
} elseif ($operator == "/") {
$calculator1->div($number1, $number2);
echo $calculator1->getResult();
} elseif ($operator == "*") {
$calculator1->mul($number1, $number2);
echo $calculator1->getResult();
} else {
echo "Invalid operator";
}
}
?>
</body>
</html>