翻译：[变量声明空间](https://jkchao.github.io/typescript-book-chinese/project/declarationspaces.html#%E5%8F%98%E9%87%8F%E5%A3%B0%E6%98%8E%E7%A9%BA%E9%97%B4) <img width="808" alt="image" src="https://user-images.githubusercontent.com/49480004/185828517-bda8c62e-6113-40b2-aa35-2c9f2df5eca1.png"> 原文：[变量声明空间](https://github.com/basarat/typescript-book/blob/master/docs/project/declarationspaces.md) <img width="1075" alt="image" src="https://user-images.githubusercontent.com/49480004/185828696-507fd851-47a1-4657-8605-70f885b2060b.png">
