Javascript 从两个输入中找出较大的数字_Javascript_Html

Javascript 从两个输入中找出较大的数字

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Javascript 从两个输入中找出较大的数字,javascript,html,Javascript,Html,我正试图写一个小程序，只选择较大的数字。我的问题是，它希望我在.js文件中使用if-else语句。这是我的html <body> BOX 1<input id = 'box1' name = '' value = '' class = ''><br> BOX 2<input id = 'box2' name = '' value = '' class = ''><br> BIGGER<input id =

我正试图写一个小程序，只选择较大的数字。我的问题是，它希望我在.js文件中使用if-else语句。这是我的html

<body>

    BOX 1<input id = 'box1' name = '' value = '' class = ''><br>
    BOX 2<input id = 'box2' name = '' value = '' class = ''><br>
    BIGGER<input id = 'bigger' name = '' value = '' class = ''><br>
    <button id = 'go' class = ''>GO</button>
    <script src = 'js/javascript 03.js'></script>
</body>

首先，我建议您避免在属性和参数之间使用空格。虽然它似乎工作起来都一样，但我从未见过这样的HTML代码

这就是我想到的：

<html>
<body>
    BOX 1 <input id='box1' name='' value='' class=''><br>
    BOX 2 <input id='box2' name='' value='' class=''><br>
    BIGGER<input id='bigger' name='' value='' class=''><br>
    <button id='go' class=''> GO</button>

    <script type="text/javascript">
        document.getElementById('go').onclick = function() {
            // Let's get the values and convert them to integers
            var val1 = parseInt(document.getElementById('box1').value);
            var val2 = parseInt(document.getElementById('box2').value);

            // Let's pick the bigger one and put it in another variable, "bigger"           
            if (val1 > val2)
                var bigger = val1;
            else
                var bigger = val2;

            // Let's write the value we just picked to the field whose id is "bigger"
            document.getElementById('bigger').value = bigger;
        }
    </script>
</body>
</html>

js文件的代码在哪里？我把它添加到原始的postnumber1=parseFloatnumber1？你是说number1=parseFloatbox1吗？是的，我想这会是个问题。你可以用biger=而不是if/else来找到更大的数字。没问题！快乐编码：

<html>
<body>
    BOX 1 <input id='box1' name='' value='' class=''><br>
    BOX 2 <input id='box2' name='' value='' class=''><br>
    BIGGER<input id='bigger' name='' value='' class=''><br>
    <button id='go' class=''> GO</button>

    <script type="text/javascript">
        document.getElementById('go').onclick = function() {
            // Let's get the values and convert them to integers
            var val1 = parseInt(document.getElementById('box1').value);
            var val2 = parseInt(document.getElementById('box2').value);

            // Let's pick the bigger one and put it in another variable, "bigger"           
            if (val1 > val2)
                var bigger = val1;
            else
                var bigger = val2;

            // Let's write the value we just picked to the field whose id is "bigger"
            document.getElementById('bigger').value = bigger;
        }
    </script>
</body>
</html>