cannot use import statement outside a module

报错"Cannot use import statement outside a module"是因为在非模块环境下使用了import语句。可以通过以下几种方法解决这个问题:

1. 将代码文件的后缀名改为.mjs，并在package.json文件中设置"type": "module"。这样Node.js会将文件识别为ES模块。
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2. 使用CommonJS语法来绕过import语句，使用require来引入需要的模块。比如使用`let Blob = require('blob-polyfill/Blob');`来替代import语句。
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3. 将代码改写为使用ES模块的方式。可以使用工具如Babel来将代码转换为兼容旧版Node.js的语法。
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请根据你的具体需求选择适合的方法来解决"Cannot use import statement outside a module"错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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