我找不到第23行的错误代码

问题描述

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解决方法

您在
\"the remains of\"
$_POST[\'num1\']
之间缺少
.
    ,几个小语法错误 缺少几个 放错了地方。 这是完整的代码:
<html>
<head><title>cw5</title></head>
<body> 
<form method=post>
Please enter 2 numbers: <br>
The first number: <input type=\"text\" name=\"num1\"><br>
The second number: <input type=\"text\" name=\"num2\"><br>
<input type=\"submit\" value=\"Submit\"></form><hr>
<?php 
   $num=$_POST[\"num1\"]+$_POST[\"num2\"];
   echo $_POST[\'num1\'].\"+\".$_POST[\'num2\'].\"=\" .$num. \"<br>\";

   $num2=$_POST[\"num1\"]-$_POST[\"num2\"];
   echo $_POST[\'num1\'].\"-\".$_POST[\'num2\'].\"=\" .$num2. \"<br>\";

   $num3=$_POST[\"num1\"]*$_POST[\"num2\"];
   echo $_POST[\'num1\'].\"x\".$_POST[\'num2\'].\"=\" .$num3. \"<br>\";

   $num4=$_POST[\"num1\"]/$_POST[\"num2\"];
   echo $_POST[\'num1\'].\"/\".$_POST[\'num2\'].\"=\" .$num4. \"<br>\";

   $num5=$_POST[\"num1\"]%$_POST[\"num2\"];
   echo \"the remains of \" . $_POST[\'num1\'].\"/\".$_POST[\'num2\'].\" is \" .$num5;
?>
<hr>
</body>
</html>