默认滚动条是在下边的,不好看,这里改一下
Element-UI中的样式需要样式穿透修改，使用/deep/即可
/deep/{.el-table {overflow-x: auto;}.el-table__header-wrapper,.el-table__body-wrapper,.el-table__footer-wrapper {overflow: visible;}.el-table::after {position: relative;}.el-table--scrollable-x .el-table__body-wrapper {overflow: visible;}}
完美解决
