javascript - 简单的摄氏到华氏温度不起作用

我是编程新手，正在制作一个简单的JavaScript应用程序，该应用程序可以转换输入的摄氏度值并输出华氏温度。它似乎不起作用，我在做什么错。


     function CelciusToFarenheit() {
      a = document.getElementById("Celcius").value;
      b = document.getElementById("Farenheit");
      f = (a * (9/5) + 32);
      b.innerHTML = f;
      }

 <html>
    <head>
    <title>Projects</title>
    <script src="pr.js" type="text/js"></script>
    <link href="main.css" rel="stylesheet"  type="text/css" />
    </head>
    <body>
      <div class="div1">
      Convert celcius to farenheit:
      <br>
      <br>
      Celcius: <input type="number" name="Celcius" id="Celcius"><br>
      Farenheit: <span id="Farenheit"></span><br>
      <button id="submit" onclick="CelciusToFarenheit()">Calculate</button>
      </div>
    </body>
    </html>

最佳答案

您想更改名称或在输入中添加id=Celcius

function CelciusToFarenheit() {
  a = document.getElementById("Celcius").value;
  b = document.getElementById("Farenheit");
  f = (a * (9 / 5) + 32);
  b.innerHTML = f;
}

<html>

<head>
  <title>Projects</title>
  <script src="pr.js" type="text/js"></script>
  <link href="main.css" rel="stylesheet" type="text/css" />
</head>

<body>
  <div class="div1">
    Convert celcius to farenheit:
    <br>
    <br> Celcius: <input type="number" id="Celcius"><br> Farenheit: <span id="Farenheit"></span><br>
    <button id="submit" onclick="CelciusToFarenheit()">Calculate</button>
  </div>
</body>

</html>