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37 lines
888 B
Markdown
37 lines
888 B
Markdown
# Cookie 参数
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定义 `Cookie` 参数与定义 `Query` 和 `Path` 参数一样。
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## 导入 `Cookie`
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首先，导入 `Cookie`：
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{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[3] *}
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## 声明 `Cookie` 参数
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声明 `Cookie` 参数的方式与声明 `Query` 和 `Path` 参数相同。
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第一个值是默认值，还可以传递所有验证参数或注释参数：
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{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[9] *}
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/// note | 技术细节
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`Cookie` 、`Path` 、`Query` 是**兄弟类**，都继承自共用的 `Param` 类。
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注意，从 `fastapi` 导入的 `Query`、`Path`、`Cookie` 等对象，实际上是返回特殊类的函数。
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///
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/// info | 说明
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必须使用 `Cookie` 声明 cookie 参数，否则该参数会被解释为查询参数。
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///
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## 小结
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使用 `Cookie` 声明 cookie 参数的方式与 `Query` 和 `Path` 相同。
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