//这里写上:render-header="renderHeader"        
              
    

renderHeader(h, { column, $index }) {      return h('p', [        h('span', column.label),        h('i', {          class: 'el-icon-information',          style: 'margin-left: 3px; color: ',          on: {            click: () => {              console.log(111,888)              let allErrorDataOrigin = '你好,你很好,你还看几眼,好的,'              let allErrorData = allErrorDataOrigin.replace(/,/g, "\n")              this.$alert(allErrorData, '评级规则', {                confirmButtonText: '确定',                callback: action => {}              });             }          }        })      ])    },