demo1：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>JSONP</title>
</head>
<body id="body">
<div id="divCustomers"></div>
<script type="text/javascript">
function callbackFunction(result, methodName) {
let html = '<ul>';
for (let i = 0; i < result.length; i++) {
html += `<li>${result[i]}</li>`
}
html += '</ul>';
document.getElementById('divCustomers').innerHTML = html;
}
</script>
<script type="text/javascript" src="http://www.runoob.com/try/ajax/jsonp.php?jsoncallback=callbackFunction"></script>
</body>
</html>
demo2：