什么是包？在Node.js中，一个包（Package）通常指的是一个包含了特定的功能或模块的目录结构。通常情况下，每个包都会有自己的版本号、依赖关系、入口文件等信息。这些信息被存储在一个名为package.json的文件中，以方便npm在安装和更新包时使用。如何创建一个包？我们可以通过执行npm init命令来创建一个新的包。执行该命令后，npm会引导我们填写一些基本信息，如包的名称、版本号、作....

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