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  1. docs/en/docs/tutorial/handling-errors.md

    The status codes in the 400 range mean that there was an error from the client.
    
    Remember all those **"404 Not Found"** errors (and jokes)?
    
    ## Use `HTTPException`
    
    To return HTTP responses with errors to the client you use `HTTPException`.
    
    ### Import `HTTPException`
    
    ```Python hl_lines="1"
    Plain Text
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  2. docs/zh/docs/tutorial/handling-errors.md

    需要向客户端返回错误提示的场景主要如下:
    
    - 客户端没有执行操作的权限
    - 客户端没有访问资源的权限
    - 客户端要访问的项目不存在
    - 等等 ...
    
    遇到这些情况时,通常要返回 **4XX**(400 至 499)**HTTP 状态码**。
    
    **4XX** 状态码与表示请求成功的 **2XX**(200 至 299) HTTP 状态码类似。
    
    只不过,**4XX** 状态码表示客户端发生的错误。
    
    大家都知道**「404 Not Found」**错误,还有调侃这个错误的笑话吧?
    
    ## 使用 `HTTPException`
    
    向客户端返回 HTTP 错误响应,可以使用 `HTTPException`。
    
    ### 导入 `HTTPException`
    
    ```Python hl_lines="1"
    {!../../../docs_src/handling_errors/tutorial001.py!}
    
    ```
    
    Plain Text
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  3. docs/em/docs/tutorial/handling-errors.md

    💰 🙋‍♀ ⚠ 🤭 `return`😅 💲 🔜 🌖 ⭐ 📄 🔃 🔗 & 💂‍♂.
    
    👉 🖼, 🕐❔ 👩‍💻 📨 🏬 🆔 👈 🚫 🔀, 🤚 ⚠ ⏮️ 👔 📟 `404`:
    
    ```Python hl_lines="11"
    {!../../../docs_src/handling_errors/tutorial001.py!}
    ```
    
    ### 📉 📨
    
    🚥 👩‍💻 📨 `http://example.com/items/foo` ( `item_id` `"foo"`), 👈 👩‍💻 🔜 📨 🇺🇸🔍 👔 📟 2️⃣0️⃣0️⃣, & 🎻 📨:
    Plain Text
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