四元表达式

1.template中内容 
<div style="150px;float: left;margin-left: 10px;" >
        <div 
        :class='["cloudCabinetList",item.status=="空闲"?"freeBackgroundColor":item.status=="使用中"?"usingBackgroundColor":"warningBackgroundColor"]'
          v-for="(item,index) in  tableChilds"
          :key="index" @click="clickDetail(item.status,item.code)">
            <p >{{item.code}}</p>
            <p >{{item.status}}</p>
        </div>
    </div>
2.data中内容
tableChilds:[
        {code:"01", type:"1",status:"空闲"},
        {code:"02", type:"1",status:"使用中"},
        {code:"03", type:"1",status:"故障"},
        {code:"04", type:"1",status:"空闲"},
        {code:"05", type:"1",status:"空闲"},
        {code:"06", type:"1",status:"空闲"},
        {code:"07", type:"1",status:"空闲"},
        {code:"08", type:"1",status:"空闲"},
        {code:"09", type:"1",status:"空闲"}],
3.css样式
.freeBackgroundColor {
    background-color: rgb(64, 158, 255)
  }

  .usingBackgroundColor {
    background-color: rgb(103, 194, 58)
  }

  .warningBackgroundColor {
    background-color: rgb(245, 108, 108)
  }
  
  .cloudCabinetList {
    padding: 10px 0;
     146px;
    font-size: 20px;
    text-align: center;
    color: black;
    border: 1px solid black;
    margin-bottom: 10px;
  }
4.效果图
原文地址:https://www.cnblogs.com/szqtiger/p/12108371.html