代码示例:(标识:jsck_state_function_2)
<!DOCTYPE html>
<html>
<body>

<p>本例调用函数将华氏温度转换为摄氏温度:</p>
<p id="demo"></p>

<script>
function toCelcius(f) {
  return (5/9) * (f-32);
}

document.getElementById("demo").innerHTML = toCelcius(32);
</script>

</body>
</html>
运行结果: