import 引入外部JS模块报错，Cannot use import

Question

<script type="module" src="vuemethod.js"></script>
vuemethod.js如下

export var lastName = 'Jackson';
export function vueList() {
    alert(11);
}

<script type="text/javascript">

  import lastName from 'vuemethod.js'

</script>
lastName处报错
Uncaught SyntaxError: Cannot use import statement outside a module

Answer 1

<script type="text/javascript">
改为
<script type="module">
上述修改后，如果出现以下报错
Uncaught SyntaxError: The requested module 'vuemethod.js' does not provide an export named 'default'

修改
import { lastName } from 'vuemethod.js'`

Answer 2

import { lastName } from 'vuemethod.js'

Answer 3

module 好像是异步吧？
然后引用路径对吗？