云计算第四次作业

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <title>微博发布</title> <style> * { margin: 0; padding: 0; } ul { list-style: none; } .w { width: 900px; margin: 0 auto; } .controls textarea { width: 878px; height: 100px; resize: none; border-radius: 10px; outline: none; padding-left: 20px; padding-top: 10px; font-size: 18px; } .controls { overflow: hidden; } .controls div { float: right; } .controls div span { color: #666; } .controls div .useCount { color: red; } .controls div button { width: 100px; outline: none; border: none; background: rgb(0, 132, 255); height: 30px; cursor: pointer; color: #fff; font: bold 14px '宋体'; } .controls div button:hover { background: rgb(0, 225, 255); } .controls div button:disabled { background: rgba(0, 225, 255, 0.5); } .contentList { margin-top: 50px; } .contentList li { padding: 20px 0; border-bottom: 1px dashed #ccc; position: relative; } .contentList li .info { position: relative; } .contentList li .info span { position: absolute; top: 15px; left: 100px; font: bold 16px '宋体'; } .contentList li .info p { position: absolute; top: 40px; left: 100px; color: #aaa; font-size: 12px; } .contentList img { width: 80px; border-radius: 50%; } .contentList li .content { padding-left: 100px; color: #666; word-break: break-all; } .contentList li .the_del { position: absolute; right: 0; top: 0; font-size: 28px; cursor: pointer; } </style> </head> <body> <div class="w"> <div class="controls"> <img src="images\9.6\tip.png" alt="" /><br /> <textarea placeholder="说点什么吧..." id="srk" cols="30" rows="10" maxlength="200"></textarea> <div> <span class="useCount" id="sz">0</span> <span>/</span> <span>200</span> <button id="fbBtn">发布</button> </div> </div> <div class="contentList"> <ul id="liebiao"></ul> </div> </div> <script> let dataArr = [ { uname: '司马懿', imgSrc: './images/9.5/01.jpg' }, { uname: '女娲', imgSrc: './images/9.5/02.jpg' }, { uname: '百里守约', imgSrc: './images/9.5/03.jpg' }, { uname: '亚瑟', imgSrc: './images/9.5/04.jpg' }, { uname: '虞姬', imgSrc: './images/9.5/05.jpg' }, { uname: '张良', imgSrc: './images/9.5/06.jpg' }, { uname: '安其拉', imgSrc: './images/9.5/07.jpg' }, { uname: '李白', imgSrc: './images/9.5/08.jpg' }, { uname: '阿珂', imgSrc: './images/9.5/09.jpg' }, { uname: '墨子', imgSrc: './images/9.5/10.jpg' }, { uname: '鲁班', imgSrc: './images/9.5/11.jpg' }, { uname: '嬴政', imgSrc: './images/9.5/12.jpg' }, { uname: '孙膑', imgSrc: './images/9.5/13.jpg' }, { uname: '周瑜', imgSrc: './images/9.5/14.jpg' }, { uname: '老夫子', imgSrc: './images/9.5/15.jpg' }, { uname: '狄仁杰', imgSrc: './images/9.5/16.jpg' }, { uname: '扁鹊', imgSrc: './images/9.5/17.jpg' }, { uname: '马可波罗', imgSrc: './images/9.5/18.jpg' }, { uname: '露娜', imgSrc: './images/9.5/19.jpg' }, { uname: '孙悟空', imgSrc: './images/9.5/20.jpg' }, { uname: '黄忠', imgSrc: './images/9.5/21.jpg' }, { uname: '百里玄策', imgSrc: './images/9.5/22.jpg' }, ] var srk = document.getElementById('srk'); var sz = document.getElementById('sz'); var fbBtn = document.getElementById('fbBtn'); var lb = document.getElementById('liebiao'); fbBtn.disabled = true; srk.oninput = function() { var cd = srk.value.length; sz.innerText = cd; if (cd == 0) { fbBtn.disabled = true; } else { fbBtn.disabled = false; } } fbBtn.onclick = function() { var nr = srk.value; if (nr == '') { return; } var sj = Math.floor(Math.random() * dataArr.length); var ren = dataArr[sj]; var t = new Date(); var nian = t.getFullYear(); var yue = t.getMonth() + 1; var ri = t.getDate(); var x = nian + '-' + yue + '-' + ri + ' ' + t.getHours() + ':' + t.getMinutes() + ':' + t.getSeconds(); var xinLi = "<li>" + "<div class='info'>" + "<img src='" + ren.imgSrc + "'>" + "<span>" + ren.uname + "</span>" + "<p>发布于 " + x + "</p>" + "</div>" + "<div class='content'>" + nr + "</div>" + "<span class='the_del'>X</span>" + "</li>"; lb.innerHTML = xinLi + lb.innerHTML; srk.value = ""; sz.innerText = 0; fbBtn.disabled = true; var sc = document.getElementsByClassName('the_del'); for (var i = 0; i < sc.length; i++) { sc[i].onclick = function() { lb.removeChild(this.parentNode); } } } </script> </body> </html>