在Python中，从“with”中返回是否安全？堵塞？

发布于 2025-01-13 09:53:54 字数 428 浏览 2 评论 0原文

在以下示例代码中：

    with open(filename,"r") as file:
        return file.read()

return 语句是否会导致任何潜在的不稳定？在这种情况下，“with”运营商是否仍然提供保障措施？既然发生了 return，并且 return 语句之后没有执行任何操作，那么 with 运算符是否仍然执行其关闭操作以确保文件操作和关闭文件指针的稳定性？

编辑：这似乎回答了这个问题：在 Python 中，如果我返回到“with”块内，文件仍然会关闭吗？

原文

in the following example code:

    with open(filename,"r") as file:
        return file.read()

does the return statement cause any potential instability?
does the "with" operator still provide its safeguards under these circumstances?
since the return happens, and nothing is executed after the return statement, does the with operator still perform its closing operations that ensure the stability of the file operations and close file pointers?

EDIT:
This seems to answer the question:
In Python, if I return inside a "with" block, will the file still close?

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