请写一个HTML示例用于与网址600chatgptcom 进行问答对话

<!DOCTYPE html>
<html>
<head>
	<title>6.00chatgpt.com</title>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
	<h1>6.00chatgpt.com问答对话</h1>
	<form>
		<label for="userInput">你的问题:</label>
		<input type="text" id="userInput" name="userInput"><br><br>
		<button type="submit" onclick="getResponse()">提交</button>
	</form>
	<div id="response"></div>
	<script>
		function getResponse() {
			var userInput = document.getElementById("userInput").value;
			var xhttp = new XMLHttpRequest();
			xhttp.onreadystatechange = function() {
				if (this.readyState == 4 && this.status == 200) {
					document.getElementById("response").innerHTML = this.responseText;
				}
			};
			xhttp.open("GET", "https://6.00chatgpt.com/api/ask?question=" + userInput, true);
			xhttp.send();
		}
	</script>
</body>
</html