Question

用户将输入摄氏度值，然后他/她将从下拉列表中选择他/她想要将其转换为的温度标度。然后，当用户单击按钮时，结果将显示在第二个文本框中。我已经尝试过了，但到目前为止，我甚至无法将结果打印在最后一个文本框中。这是我的代码：

<body>
<form name=myForm>  
    <p> Celcius Value

        <input type="text" name="celcius" />

    <p> Convert to

        <select name="to" id="to">

            <option></optio>
            <option value="Farenheit"> Farenheit</option>
            <option value="Kelvin"> Kelvin</option>
            <option value="Rankine"> Rankine</option>
        </select>

    <hr size=2 color="blue">

    <p> Click this to convert <button onclick="Converter()" />Convert</button>

    <p> Result <input type="text" id="result" />

    <script>

        fucntion Converter() {

            var celcius = document.myForm.celcius.value;

            var sel = document.getEleemntById("to");
            var selVal = sel.options[sel.selectedIndex].value;

            if (selVal == "Farenheit") {

                var result = (parseInt(celcius)*(9/5.0)) +32;

            }else if ( selVal == "Kelvin") {

                var result = parseInt(celcius)+273.15;

            }else { 
                var result = (parseInt(celcius)+273.15)* (9/5.0);

            }

            document.getElementById("result").innerHTML= result;
        }
    </script>
    </form>
</body>

请你好心人，请检查它有什么问题？

Answer 1

你应该尝试jslint - 它可以找到你的javascript错误：

function Converter() {

        var celcius = document.myForm.celcius.value;

        var sel = document.getElementById("to");
        var selVal = sel.options[sel.selectedIndex].value;

        if (selVal == "Farenheit") {

            var result = (parseInt(celcius)*(9/5.0)) +32;

        }else if ( selVal == "Kelvin") {

            var result = parseInt(celcius)+273.15;

        }else { 
            var result = (parseInt(celcius)+273.15)* (9/5.0);

        }

        document.getElementById("result").value = result;
    }

将摄氏温度转换为华氏度，开尔文和兰金

1 个答案: