abstract:<!doctype html> <html> <head> <meta charset="utf-8"> <style> body{font-size:12px;} .box{width:600px; height:160px; border:10px solid&nb
<!doctype html> <html> <head> <meta charset="utf-8"> <style> body{font-size:12px;} .box{width:600px; height:160px; border:10px solid pink; margin:0px auto; padding:10px;} img{float:left;} .box1{float:left; margin-left:325px; width:150px; height:24px; text-align:right; font-size:14px; color:#888;} .box1 span{font-size:16px; font-weight:bold;} #text{width:600px; height:100px; border:1px solid #888; margin-top:5px;} .box #sp1,#sp2,#sp3,#sp4,$sp5,$sp6{float:left; width:30px; height:35px; line-height:35px; padding-left:26px;} #sp1{ background:url(an5.png) no-repeat left center;} #sp2{ background:url(an4.png) no-repeat left center;} #sp3{ background:url(an3.png) no-repeat left center;} #sp4{ background:url(an2.png) no-repeat left center;} #sp5{ background:url(an1.png) no-repeat left center; width:40px;} #sp6{ margin-left:250px; margin-right:15px; color:#888;} #bt{float:right; width:80px; height:30px; border:none; background:#ffc09f; color:#FFF; border-radius:5px;} </style> <title>微博输入字数限制功能</title> <script type="text/javascript"> var text,number,m; window.onload = function(){ text = document.getElementById('text'); number = document.getElementById('number'); bt = document.getElementById('bt'); text.onkeyup = function aa(){ m=140-text.value.length; if(m<0){ number.style.color="red"; }else{ number.style.color="#888"; } number.innerHTML=m; } bt.onclick = function(){ if(m==140){ alert("你还没有输入!"); text.focus(); }else if(m<0){ alert("字数太多,不可以发布!"); text.focus(); }else{ alert("发布成功!"); } } aa() } </script> </head> <body> <div class="box"> <img src="https://p1.pstatp.com/list/190x124/pgc-image/bb6cc499cfe24bfd92039e4bc740bc10" height="20"> <div class="box1">还可以输入<span id="number"></span>字</div> <textarea id="text"></textarea> <span id="sp1">表情</span> <span id="sp2">图片</span> <span id="sp3">视频</span> <span id="sp4">话题</span> <span id="sp5">长微表</span> <span id="sp6">公开</span> <input type="button" value="发布" id="bt"> </div> </body> </html>
Correcting teacher:天蓬老师Correction time:2019-05-10 15:49:32
Teacher's summary:看上去不太像自己写的, 是不是把教学代码直接复制上来了