代码部分

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>AjaxTest2</title>
</head>
<body>
    <input id='myInput' type="text" >
    <button id='myButton' onclick="handleSubmit()">Click To Down Load</button>
    <div id='myDisplay'></div>
>
    <script>
        const myKey = '0a8c23653d43f9a476add0d0ed833472';
>
        function renderHTML(data){
            let myDisplay = document.getElementById('myDisplay');
            myDisplay.innerHTML = data;
        };
>
        function formatInfo(data){
            let parseData = JSON.parse(data); 
            let resultCode = parseData.resultcode;
            let reason = parseData.reason;
            let result = parseData.result;
            if (result){
                let area = parseData.result.area;
                let sex = parseData.result.sex;
                let birthday = parseData.result.birthday;
                var resultText = '您的出生地为:' + area + '  您的性别为:' + sex + '  您的生日为:' + birthday;
            }
            else {var resultText = reason;}
            return resultText;
        };
>
        function handleHttp(url){
            return new Promise(function(resolve,reject){
                var myXHR = (window.XMLHttpRequest) ? new XMLHttpRequest() : new ActiveXObject();
                myXHR.onload = function() {
                    if (myXHR.status == 200){
                        resolve(myXHR.responseText);
                    }
                    else {reject(myXHR.statusText);}
                };
                myXHR.onerror = function() {
                    reject('Network Error...');
                }
>
                myXHR.open('GET',url);
                myXHR.send();
            })
        };
>
        function handleSubmit(){
            let myCard = document.getElementById('myInput').value; 
            let myURL = 'http://apis.juhe.cn/idcard/index?key=' + myKey + '&cardno=' + myCard;
            handleHttp(myURL).then((response)=>{renderHTML(formatInfo(response));}).catch(renderHTML);
        };
    </script>
</body>
</html>