点赞收藏的原理都是一样，通过点击切换文字和图片实现动态点赞收藏功能。

图标来源 阿里图标库

评论功能原理也很简单，在页面中写好评论css样式，再通过js生成div节点，再嵌套内容，用最原始的方法，解决最常见的问题，简单易懂。

需要引入jquery-3.6.0.js，自行前往官网下载 

<script src="../indexMenus/jquery/jquery-3.6.0.js"></script>
<script src="../indexMenus/jquery/jquery-1.11.0.min.js"></script>
<script src="../indexMenus/jquery/dialog.js"></script>

还有评论弹窗所需的css

<link rel="stylesheet" href="../indexMenus/jquery/dialog.css">

下面开始上代码

点赞、收藏、评论、删除评论的功能实现js

            // 收藏
			$(document).ready(function() {
				$("#collect").click(function() {
					$("#thumbs1").toggle();
					$("#colltext").toggle();
					$("#thumbs2").toggle();
					$("#colltext2").toggle();
				});
			});
			// 点赞
			$(document).ready(function() {
				$("#umbsbtn").click(function() {
					$("#umbsimg").toggle();
					$("#umbs1").toggle();
					$("#umbsimg2").toggle();
					$("#umbs2").toggle();
					$(".user-forum-thumbs-users").toggle();
				});
			});
			// 评论
			$(document).ready(function() {
				$("#openspeek").click(function() {
					$("#dialogs").toggle();
				});
			});
			// 评论弹窗关闭
			function diacloses() {
				document.getElementById("dialogs").style.display = "none";
			};
			// 发表评论
			function addDiv() {
				// 添加节点嵌套
				var node = document.createElement('div');
				var txt1 = document.createElement("p");
				var txt2 = document.createElement("span");
				var txt3 = document.createElement("span");
				var txt4 = document.getElementById('dialogtext').value;
				var btn1 = document.createElement('button');
				var btntxt = document.createElement('span');
				if (txt4 == '' || txt4 == ' ') {
					alert('请输入评论内容！');
				} else {
					node.className = 'user-remarks-content';
					btn1.id = 'btndel';
					// 插入内容
					txt2.innerHTML = "李诗诗：";
					txt3.innerHTML = txt4;
					btntxt.innerHTML = "删除";
					btn1.innerHTML = "<img src=" + '../indexMenus/img/remarks.png' + ">";
					// 继续嵌套
					txt1.appendChild(txt2);
					txt2.appendChild(txt3);
					node.appendChild(txt1);
					btn1.appendChild(btntxt);
					node.appendChild(btn1);
					// 添加评论
					document.getElementById("addcontent").appendChild(node);
					// 输入null内容后跳出弹窗
					document.getElementById("dialogs").style.display = "none";
					// 跳出弹窗后清空文本内容
					$('#dialogtext').val('');

				};
				// 删除评论
				// 只能删一次
				$("#btndel").on("click", function() {
					$(this).parent().remove();
				});
			}

html部分

<!-- 点赞评论 -->
				<div class="user-forum-thumbs">
					<button id="openspeek">
						<img src="../indexMenus/img/thumbs5.png">
						<span>评论</span>
					</button>
					<button id="umbsbtn">
						<img src="../indexMenus/img/thumbs3.png" id="umbsimg">
						<span id="umbs1">点赞</span>
						<img src="../indexMenus/img/thumbs4.png" id="umbsimg2" style="display: none;">
						<span id="umbs2" style="display: none;">取消</span>
					</button>
					<button id="collect">
						<img src="../indexMenus/img/thumbs1.png" id="thumbs1">
						<span id="colltext">收藏</span>
						<img src="../indexMenus/img/thumbs2.png" id="thumbs2" style="display: none;">
						<span id="colltext2" style="display: none;">取消</span>
					</button>
				</div>
				<!-- 点赞用户 -->
				<div class="user-forum-thumbs-users" style="display: none;">
					<span><img src="../indexMenus/img/thumbs6.png"> 李诗诗</span>
				</div>
				<!-- 评论添加 -->
				<div class="user-remarks-addcontent" id="addcontent"></div>
				<!-- 评论删除图片 -->
				<img src="../indexMenus/img/remarks.png" id="remarks" style="display: none;">
				<!-- 分割线 -->
				<div class="user-content-solid"></div>
			</div>
			<!-- 发布评论 -->
			<div class="user-com-go">
				<div class="com-imgs">
					<a href="../indexMenus/forum-content.html"><img src="../dynamic/img/comm1.png"></a>
				</div>
			</div>

			<!-- 点击输入评论内容弹窗 -->
			<div class="dialog-wrap dialog-wrap-show" style="display: none;" id="dialogs">
				<div class="dialog-overlay"></div>
				<div class="dialog-content">
					<div class="dialog-content-hd">
						<h4 class="dialog-content-title">评论回复</h4>
					</div>
					<div class="dialog-content-bd">
						<textarea name="dialog" id="dialogtext" cols="36%" rows="10"
							style="margin-top: 5%;padding: 3%;margin-left: 2%;" placeholder="输入你想说的内容..."></textarea>
					</div>
					<div class="dialog-content-ft">
						<a class="dialog-btn dialog-btn-cancel" id="diacloses" onclick="diacloses()">取消</a>
						<a class="dialog-btn dialog-btn-ok" id="diacloses2" onclick="addDiv()">确定</a>
					</div>
				</div>
			</div>

 css部分 这部分可根据实际内容进行调整

.user-forum-thumbs {
			width: 100%;
			height: 3.5vh;
			margin-top: 3%;
		}

		.user-forum-thumbs>button {
			width: 20%;
			text-align: right;
			padding-right: 2%;
			float: right;
			border: 0;
			outline: none;
			background-color: #ffffff;
			cursor: pointer;
			font-size: 13px;
			height: 3vh;
		}

		.user-forum-thumbs>button:hover {
			color: red;
		}

		.user-forum-thumbs>button>img {
			display: inline-block;
			padding-bottom: 0.4vh;
			padding-right: 1vw;
		}

		.user-forum-thumbs-users {
			width: 90%;
			padding-left: 5%;
			margin-bottom: 2%;
		}

		.user-forum-thumbs-users>span {
			font-size: 12px;
			color: #0e90d2;
		}

		.user-remarks-content {
			width: 85vw;
			margin-left: 6vw;
			line-height: 3vh;
		}

		.user-remarks-content>p {
			font-size: 14px;
		}

		.user-remarks-content>p>span {
			color: #0e90d2;
		}

		.user-remarks-content>p>span>span {
			color: black;
		}

		.user-remarks-content>button {
			width: 16%;
			border: 0;
			height: 3vh;
			background-color: #ffffff;
			color: #0e90d2;
			cursor: pointer;
		}

		.user-remarks-content>button>img {
			float: left;
		}

		.user-remarks-content>button>span {
			float: left;
			margin-top: 0.2vh;
			font-size: 12px;
		}

		.user-content-solid {
			width: 94vw;
			border-bottom: 1px solid #cdcecf;
			margin-top: 3%;
		}

		#userTxt {
			color: black;
			font-size: 14px;
			display: inline-block;
		}
		.user-com-go{
			width: 11%;
			height: 5%;
			position: fixed;
			bottom: 8%;
			right: 5%;
			background-color: #999999;
			border-radius: 50%;
			background-color:rgba(0, 0, 0, 0.3)
		}
		.com-imgs{
			width: 2%;
			height: 2%;
			margin-top: 30%;
			margin-left: 30%;

最后就轻松时间三个基础的功能啦！