PHP简单计算器
';
$result = 0.0;
switch($_POST["opt"]){
case '+':
$result = $_POST["num1"] + $_POST["num2"];
break;
case '-':
$result = $_POST["num1"] - $_POST["num2"];
break;
case '*':
$result = $_POST["num1"] * $_POST["num2"];
break;
case '/':
if($_POST["num2"] != "0"){
$result = $_POST["num1"] / $_POST["num2"];
}
break;
case '%':
if($_POST["num2"] != "0"){
$result = $_POST["num1"] % $_POST["num2"];
}
break;
}
if(!$message){
echo ''."计算结果:".$_POST["num1"]." ".$_POST["opt"]." ".$_POST["num2"]." = ".$result."";
}else{
echo '错误:'.$message."";
}
echo ' | ';
}
?>
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