一百行代码实现简易版 ChatGPT 聊天机器人

		<div class="container">
			<div class="chat-header">
				<div class="logo"><img src="https://code.haiyong.site/wp-content/uploads/2022/10/logo.jpg" alt="cwt" /></div>
				<div class="title">简易版Chat GPT</div>
			</div>
			<div class="chat-body"></div>
			<div class="chat-input">
				<div class="input-sec"><input type="text" id="txtInput" placeholder="在这里写" autofocus /></div>
				<div class="send"><img src="https://haiyong.site/img/svg/send.svg" alt="send" /></div>
			</div>
		</div>

@import url("https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Poppins:wght@200;300&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}
body {
  background: #4b5c66;
}
.container {
	--light-color: #fff;
	height: 580px;
	background: var(--light-color);
	bottom: 50px;
	right: 10px;
	box-shadow: 0px 0px 15px 0px black;
}
@media screen and (min-width:440px) {
	.container {
		position: fixed;
	}
}
.chat-header {
  height: 60px;
  display: flex;
  align-items: center;
  padding: 0px 30px;
  background-color: #0652c0;
  color: var(--light-color);
  font-size: 1.5rem;
}

.chat-header .logo {
  height: 35px;
  width: 35px;
  box-shadow: 0px 0px 10px 0px black;
}
.chat-header img {
  height: 100%;
  width: 100%;
}
.chat-header .title {
  padding-left: 10px;
}
.chat-body {
  height: 465px;
  display: flex;
  flex-direction: column;
  padding: 8px 10px;
  align-items: flex-end;
  overflow-y: auto;
}
.chat-input {
  height: 60px;
  display: flex;
  align-items: center;
  border-top: 1px solid #ccc;
}
.input-sec {
  flex: 9;
}
.send {
  flex: 1;
  padding-right: 4px;
}
#txtInput {
  line-height: 30px;
  padding: 8px 10px;
  border: none;
  outline: none;
  caret-color: black;
  font-size: 1rem;
  width: 100%;
}

.chatbot-message,
.user-message {
  padding: 8px;
  background: #ccc;
  margin: 5px;
  width: max-content;
  border-radius: 10px 3px 10px 10px;
}
.chatbot-message {
  background: #0652c0;
  color: var(--light-color);
  align-self: flex-start;
  border-radius: 10px 10px 3px 10px;
}

const responseObj = {
	你好: "你好，我是最强人工智能ChatGPT，我能回答你所有问题，快来和我聊天吧！",
	五块钱怎么花三天: "坐公交回去找妈妈",				
	你是小黑子吗: "不，我不是小黑子。我是OpenAI的聊天机器人模型ChatGPT",
	你为什么和我聊天: "只因你太美",
	嘿: "嘿！ 这是怎么回事",
	今天几号: new Date().toDateString(),
	几点了: new Date().toLocaleTimeString(),
};
const chatBody = document.querySelector(".chat-body");
const txtInput = document.querySelector("#txtInput");
const send = document.querySelector(".send");
send.addEventListener("click", () => renderUserMessage());
txtInput.addEventListener("keyup", (event) => {
	if (event.keyCode === 13) {
		renderUserMessage();
	}
});
const renderUserMessage = () => {
	const userInput = txtInput.value;
	renderMessageEle(userInput, "user");
	txtInput.value = "";
	setTimeout(() => {
		renderChatbotResponse(userInput);
		setScrollPosition();
	}, 600);
};
const renderChatbotResponse = (userInput) => {
	const res = getChatbotResponse(userInput);
	renderMessageEle(res);
};
const renderMessageEle = (txt, type) => {
	let className = "user-message";
	if (type !== "user") {
		className = "chatbot-message";
	}
	const messageEle = document.createElement("div");
	const txtNode = document.createTextNode(txt);
	messageEle.classList.add(className);
	messageEle.append(txtNode);
	chatBody.append(messageEle);
};
const getChatbotResponse = (userInput) => {
	return responseObj[userInput] == undefined ?
		"听不太懂呢试试输点别的" :
		responseObj[userInput];
};
const setScrollPosition = () => {
	if (chatBody.scrollHeight > 0) {
		chatBody.scrollTop = chatBody.scrollHeight;
	}
};