with open() as
时间: 2023-10-18 11:14:38 浏览: 21
`with open()` is a Python statement that provides a convenient way to handle files. It ensures that the file being opened is closed properly when the block inside the `with` statement is exited, even if an exception is raised.
Here's an example:
```
with open('file.txt', 'r') as f:
data = f.read()
print(data)
```
In this example, the file `file.txt` is opened in read mode (`'r'`) and assigned to the variable `f`. The `with` statement ensures that the file is closed properly when the block inside the statement is exited. The contents of the file are read and printed to the console.
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