知识有限，目前只写了发布动态的功能，没有写兼容，后面再慢慢完善。嘿嘿
效果图：
代码如下：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>微博</title> <style> body, p, img, ul, li { margin: 0; padding: 0; } body { background-image: url("http://cdn.attach.qdfuns.com/notes/pics/201612/07/212742f92tpe2wve095ttp.jpg");} li { list-style: none; } .box { padding-top: 20px; margin: 20px auto; width: 620px; height: 180px; position: relative; background-color: #ffffff; text-align: center; } .box label { font: 18px/18px "微软雅黑"; color: #cccccc; position: absolute; top: 60px; left: 40px; cursor: text; } .H { float: left; padding: 5px 0 5px 10px; color: #426B80; font: 400 16px/16px "宋体"; } textarea { padding: 5px; border-color: #CCCCCC; width: 580px; height: 80px; resize: none; outline:none; font: 400 18px "微软雅黑"; color: #333333; } #button { width: 80px; height: 34px; display: block; background-color: #FFC09F; position: absolute; top: 148px; right: 14px; text-align: center; line-height: 34px; color: #ffffff; cursor: pointer; /*F7671D*/ } .dynamic { text-align: left; padding: 10px 10px; width: 580px; height: 100%; } .user { position: relative; } .user img { border: solid 1px #CCCCCC; vertical-align: top; } .user .name { display: block; position: absolute; top: 8px; left: 60px; font: 600 18px/18px "微软雅黑"; } .time{ display: block; position: absolute; top: 55px; left: 80px; font: 500 10px/10px "微软雅黑"; } .dynamic .user { margin: 10px 5px 0 10px; } .dynamic .list { font: 500 16px/16px "微软雅黑"; padding-left: 70px; } </style> <script> window.onload = function () { //获取当前时间函数 function time() { var maydate = new Date(); var Time = maydate.getFullYear() + "-" + (maydate.getMonth()+1) +"-"+maydate.getDate()+" "+maydate.getHours()+":"+maydate.getMinutes(); return Time; } //获取ID函数 function $(id) {return document.getElementById(id);} //创建节点函数 function nweChild(id,text) { //获得节点ID var parent = $(id); //获得body所有的孩子 var child = parent.parentNode.children; //克隆当前节点和其所有子节点 var newNode = parent.cloneNode(true); //给当前节点的父节点插入克隆的节点 parent.parentNode.insertBefore(newNode,child[1]); //插入的克隆节点更换ID child[1].id = id + (child.length - 2); //改变时间 //获取当前id节点的所有孩子 var idChild = child[1].children; idChild[0].innerHTML = time(); idChild[2].innerHTML = $("text").value; } //获得焦点改变边框颜色和恢复默认字体颜色 $("text").onfocus = function () { this.style.borderColor = "#FA7D3C"; this.style.color = "#333333"; } //失去焦点恢复默然边框颜色，改变字体颜色 $("text").onblur = function () { this.style.borderColor = "#CCCCCC"; this.style.color = "#CCCCCC"; } //监听输入事件 $("text").oninput = function () { if($("text").value != ""){ //隐藏提示文本 $("txt").style.display = "none"; //文本域不为空 按钮可点击 $("button").style.backgroundColor = "#FF8140"; }else{ //显示提示文本 $("txt").style.display = "block"; //文本域为空 按钮不可点击 $("button").style.backgroundColor = "#FFC09F"; } } //按钮事件 $("button").onmousemove = function () { //当文本域不为空执行下面按钮事件 if($("text").value != ""){ $("button").onmouseout= function () { //如果不为空 按钮为亮色 if($("text").value != ""){ this.style.backgroundColor = "#FF8140"; }else { //恢复按钮为不可点击颜色 $("button").style.backgroundColor = "#FFC09F"; } } //按钮为高亮 this.style.backgroundColor = "#F7671D"; //调用节点函数，并把传递当前文本内容 $("button").onclick = function () { if($("text").value != ""){ nweChild("order",$("text").value); } //清空当前文本 $("text").value = ""; //恢复按钮为不可点击颜色 $("button").style.backgroundColor = "#FFC09F"; //更改提示文本内容 $("txt").innerHTML = "你看，没骗你吧！" //显示提示文本 $("txt").style.display = "block"; } } } } </script> </head> <body> <div> <span>有什么新鲜事想告诉大家？</span> <textarea></textarea> <label for="text">输入一段话，点发布会有惊喜哦！</label> <span>发布</span> </div> <div> <span>2016-12-07 21:20</span> <div> <img src="https://cdn.attach.qdfuns.com/notes/pics/201612/07/212742m96ugh87fzxhuuxp.jpg" width=50; alt="头像"> <span>漫步未来</span> </div> <ul> <li>未来的你，一定会感谢现在拼命的自己。</li> </ul> </div> </body> </html>