美文网首页
JavaScript12倒计时、动态表格、微博

JavaScript12倒计时、动态表格、微博

作者: 我真的是易晓辉 | 来源:发表于2018-05-29 08:21 被阅读0次

    一、倒计时

    倒计时

    距离下课还有:

        ||  

    function task(){

    //获取当前时间、

            var now=new Date();

    //获取下课时间:

            var end=new Date('2018/5/25 20:30');

    //求差 值为秒:

            var s=(end-now)/1000;

            console.log(s);

            if(s>0){

    //小时

                var h=Math.floor(s/3600);

    //求分钟:

                var m=Math.floor(s%3600/60);

    //求秒数:

                s=Math.floor(s%60);

    document.querySelector('span').innerHTML=h+'小时'+m+'分'+s+'秒';   

            }else{

                 clearInterval(timer);

    document.querySelector('span').innerHTML='下课了';

            }

    }

            task();

    var timer=setInterval(task,1000);     

    var btn=document.querySelector('button');        

      function stop(btn){

          if(btn.innerHTML=='||'){

              clearInterval(timer);

              btn.innerHTML='|>';

          }else{

              timer=setInterval(task,1000);

              btn.innerHTML='||';

          }

      }    

    二、动态创建表格

     var json='[{"ename":"Tom", "salary":10000, "age":25},{"ename":"John", "salary":11000, "age":28},{"ename":"Mary", "salary":12000, "age":25}]';

                     var emps=eval(json);

                     var table=document.createElement('table');

                     var thead=document.createElement('thead');

                     var tr=document.createElement('tr');

                     for(var key in emps[0]){

                      var th=document.createElement('th');

                      th.innerHTML=key;

                      tr.appendChild(th);

                     }

                     thead.appendChild(tr);

                     table.appendChild(thead);

    //创建tbody

                     var tbody=document.createElement('tbody');

                     for(var i=0;i

    //创建行

                         var tr=document.createElement('tr');

                         tbody.appendChild(tr);

    //创建td

                         for(var key in emps[i]){

                             var td=document.createElement('td');

                             td.innerHTML=emps[i][key];

                             tr.appendChild(td);

                         }

                     }

                      table.appendChild(tbody);

                     document.getElementById('data').appendChild(table);

    三、仿微博发表评论

    仿微博发表评论

    *{

    margin:0;

    padding:0;

    }

    a{

    text-decoration: none;

    }

    input{

    border:0;

    }

    li{

    list-style: none;

    }

    .container{

    width:800px;

    margin:0 auto;

    /*border:1px solid #000;*/

    padding:20px;

    }

                input{

                 border:1px solid #666;

                 width:100%;

                 height:100px;

                 padding-left:10px;

                }

                .content>p{

                    font-weight: bold;

                    font-size: 20px;

                    padding:10px;

                }

                .content>p>span{

                  font-weight: normal;

                    font-size:14px;

                    margin-left:400px;

                }

                .content>button{

                 width:70px;

                 height:40px;

                 line-height: 40px;

                 background: #e4393c;

                 border-radius: 5px;

                 border:0;

                 font-size: 16px;

                 font-weight: bold;

                 color:#fff;

                 margin-top:10px;

                 margin-left:90%;

                }

                .main{

                 width:100%;

                 border:1px solid #000;

                 overflow: hidden;

                 border-radius: 20px;

                 margin-top:20px;

                 padding:0 10px;

                }

                .main>img,.main>p{

                 float:left;

                }

                .main>img{

                 width:100px;

                 height:100px;

                }

                .main>p{

                 width:500px;

                 height:100px;

                 line-height: 100px;

                 padding-left:50px;

    /*             border:1px solid #000;*/

                }

                .main>button{

                 width:70px;

                 height:40px;

                 line-height: 40px;

                 background: #e4393c;

                 border-radius: 5px;

                 border:0;

                 font-size: 16px;

                 font-weight: bold;

                 color:#fff;

                 float:right;

                 margin-top:30px;

                }

    作者:梁萌0328

    链接:https://www.jianshu.com/p/bc8821698404

    來源:简书

    著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。

    相关文章

      网友评论

          本文标题:JavaScript12倒计时、动态表格、微博

          本文链接:https://www.haomeiwen.com/subject/lpkojftx.html