Javascript 我做了一个年龄计算器，我需要刷新重新使用

我对java脚本还不熟悉，当时正在摆弄一个年龄计算器。我做了一个我觉得很好用的，但是我注意到如果你要使用它，你必须刷新页面才能再次使用它。我怎样才能使它不需要刷新，而只需输入另一个值

    <table id="tableCenter">
        <tr id="yearBornRow">
            <p>What year were they born?</p>
            <input id="yearBorn">
        </tr>
        <tr id="currentYearRow">
            <p>What is the current year?</p>
            <input id="currentYear">
        </tr>
    </table>

    <br>

    <button onclick="showAge()">Submit</button>

    <p id="printCurrentAge">Submit to find the age!</p>

他们是哪一年出生的

今年是什么时候



提交
提交以查找年龄

然后是js

<script>
        var yearBorn = document.getElementById("yearBorn").value

        var currentYear = document.getElementById("currentYear").value

        var age = currentYear - yearBorn

        var possiblity = age++

        function showAge(){
            document.getElementById("printCurrentAge").innerHTML = "The person is either " +possiblity+ " or " +age;
        }
    </script>

var yearBorn=document.getElementById（“yearBorn”）.value
var currentYear=document.getElementById（“currentYear”）.value
变量年龄=当前年份-出生年份
var可能性=年龄++
函数显示（）{
document.getElementById（“printCurrentAge”）.innerHTML=“此人是”+可能性+”或“+年龄；
}

---

感谢高级

中的帮助，因为您正在对值执行算术运算，因此需要将它们正确解析为整数，以便通过函数使用它们：

var yearBorn = parseInt(document.getElementById("yearBorn").value);
var currentYear =  parseInt(document.getElementById("currentYear").value);
var age = currentYear - yearBorn
var possiblity = age + 1;

您还需要在

showAge（）

函数中添加此项，以便每次单击按钮时都计算此项：

function showAge(){
        var yearBorn = parseInt(document.getElementById("yearBorn").value);
        var currentYear =  parseInt(document.getElementById("currentYear").value);
        var age = currentYear - yearBorn
        var possiblity = age + 1;
        document.getElementById("printCurrentAge").innerHTML = "The person is either " +possiblity+ " or " +age;
}

---

由于要对值执行算术运算，因此需要将它们正确解析为整数，以便通过函数使用它们：

var yearBorn = parseInt(document.getElementById("yearBorn").value);
var currentYear =  parseInt(document.getElementById("currentYear").value);
var age = currentYear - yearBorn
var possiblity = age + 1;

您还需要在

showAge（）

函数中添加此项，以便每次单击按钮时都计算此项：

function showAge(){
        var yearBorn = parseInt(document.getElementById("yearBorn").value);
        var currentYear =  parseInt(document.getElementById("currentYear").value);
        var age = currentYear - yearBorn
        var possiblity = age + 1;
        document.getElementById("printCurrentAge").innerHTML = "The person is either " +possiblity+ " or " +age;
}

---

您只需要在函数中移动变量。它会很有魅力的！！。你可以这样做：

<script>


    function showAge(){
        var yearBorn = document.getElementById("yearBorn").value

        var currentYear = document.getElementById("currentYear").value

        var age = currentYear - yearBorn

        var possiblity = age++

        document.getElementById("printCurrentAge").innerHTML = "The person is either " +possiblity+ " or " +age;
    }
</script>

函数显示（）{
var yearBorn=document.getElementById（“yearBorn”）.value
var currentYear=document.getElementById（“currentYear”）.value
变量年龄=当前年份-出生年份
var可能性=年龄++
document.getElementById（“printCurrentAge”）.innerHTML=“此人是”+可能性+”或“+年龄；
}

只需将变量移到函数中即可。它会很有魅力的！！。你可以这样做：

<script>


    function showAge(){
        var yearBorn = document.getElementById("yearBorn").value

        var currentYear = document.getElementById("currentYear").value

        var age = currentYear - yearBorn

        var possiblity = age++

        document.getElementById("printCurrentAge").innerHTML = "The person is either " +possiblity+ " or " +age;
    }
</script>

函数显示（）{
var yearBorn=document.getElementById（“yearBorn”）.value
var currentYear=document.getElementById（“currentYear”）.value
变量年龄=当前年份-出生年份
var可能性=年龄++
document.getElementById（“printCurrentAge”）.innerHTML=“此人是”+可能性+”或“+年龄；
}