使用js 创建table tr th td image 等


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
  <style>
    body{
      width: 800px;
      margin: 50px auto;
    }
    table{
      border-collapse: collapse;
      width: 800px;
      border: 1px solid #000000;
    }
    th{
      border: 2px solid;
    }
    td,tr{
      height: 30px;
      line-height: 30px;
      border: 1px solid #33652f;
      text-align: center;
    }
    img{
      width: 50px;
      height: 50px;
    }

  </style>

    <script>
      data=[
      {id:10001,icon:"icon/1.png",name:"王玥",price:"薪资"},
      {id:10002,icon:"icon/2.png",name:"杜伟 ",price:"IT"},
      {id:10003,icon:"icon/3.png",name:"高冬梅",price:"人事"},
      {id:10004,icon:"icon/4.png",name:"刘海波",price:"安全"},
      {id:10005,icon:"icon/5.png",name:"于海燕",price:"后勤"},
      {id:10006,icon:"icon/6.png",name:"夏远静",price:"经理"},
      ];

      //给data添加一个对象属性来保存 true false 的多选框
      //javascript object 的属性是根据增加的先后循序遍历的,以下操作就相当于在price后面添加一个seleced

      // data.forEach(element => {
      //     element.selected=Math.floor(Math.random()*2)>0;

      // });
      //实现selected在id的前面使用map方法循环遍历
      data=data.map(t => {
          //新建一个对象
          var obj={};
          obj.selected=Math.floor(Math.random()*2)>0;
          //在把foreach遍历的t每个对象复制给obj,data数组对象在重新接收下
          for(var key in t){
            obj[key]=t[key];
          }
          return obj;  //返回obj
      });
 

 //创建table、tr 和th
      var table=document.createElement('table');
      var tr=document.createElement('tr');
      table.appendChild(tr);
      for(var key in data[0]){
          var th=document.createElement('th');
          th.textContent=key;
          tr.appendChild(th);
      }


//把data数组对象循环遍历后 插入到td中,并且判断 是否有图片有图片的要添加图片
      for(var i=0;i<data.length;i++){
        var tr=document.createElement('tr');
        table.appendChild(tr);
          for(var key in data[i]){
            var td=document.createElement('td');
            if(key==='icon'){
              var img=new Image();
              img.src=data[i].icon;
              td.appendChild(img);

              //判断selected
            }else if(key==="selected"){
              var input=document.createElement("input");
              input.type="checkbox";
              td.appendChild(input);
              //修改checkbox是否被选中状态
              input.checked=data[i][key];

            }else{
              td.textContent=data[i][key];

            }

            tr.appendChild(td);
          }

      }

      //把table插入到body中
      document.body.prepend(table)


    </script>
</body>
</html>
 

 

posted @ 2020-08-11 17:02  WhiteSpace  阅读(951)  评论(0编辑  收藏  举报