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改变安装方式即可

// ...
import VxeUITable from 'vxe-table'
import 'vxe-table/lib/style.css'
// ...createApp(App).use(VxeUITable).mount('#app')

修改后

// ...
import VxeUITable from 'vxe-table'
import 'vxe-table/lib/style.css'
// ...import VxeUI from 'vxe-pc-ui'
import 'vxe-pc-ui/lib/style.css'
// ...createApp(App).use(VxeUI).use(VxeUITable).mount('#app')