在main.js 里面写

Vue.filter('dateFormat',function(originVal){
   const dt =new Date(originVal)
   const y = dt.getFullYear()
   const m = (dt.getMonth() + 1 + '').padStart(2,0)
   const d = (dt.getDate() + '').padStart(2,0)
   const hh = (dt.getHours() + '').padStart(2,0)
   const mm = (dt.getMinutes() + '').padStart(2,0)
   const ss = (dt.getSeconds() + '').padStart(2,0)
   return `${y}-${m}-${d} ${hh}:${mm}:${ss}`
})

   <template slot-scope="scope">
         {{scope.row.create_time | dateFormat}}  
   </template>