os.path.abspath()
时间: 2023-02-19 13:14:50 浏览: 62
`os.path.abspath()` 是 Python 中用于获取绝对路径的函数。它接受一个参数,即要转换为绝对路径的相对路径,并返回该相对路径的绝对路径。
示例:
```
import os
current_directory = os.getcwd()
print(current_directory)
# '/home/user/project'
relative_path = 'file.txt'
absolute_path = os.path.abspath(relative_path)
print(absolute_path)
# '/home/user/project/file.txt'
```
相关问题
os.path.abspath
os.path.abspath(path)
This function returns an absolute path of the given path as a string. An absolute path is a complete path from the root directory to the specified file or directory. If the given path is already an absolute path, it returns the same path without any changes. The path parameter can be specified as either a string or a bytes object.
Example:
```
import os
path = "my_folder/my_file.txt"
absolute_path = os.path.abspath(path)
print(absolute_path)
```
Output:
```
/home/user/my_folder/my_file.txt
```
In this example, the `os.path.abspath()` function returns the absolute path of `"my_folder/my_file.txt"` by adding the root directory (`/home/user/`) to the given path.
os.path.dirname(os.path.dirname(os.path.abspath(__
`os.path.dirname()` 函数在 Python 的 `os` 模块中,用于获取路径中的目录部分。当你连续应用三次这个函数到 `os.path.abspath(__file__)` 上时,它的作用是从当前文件所在的绝对路径开始,向上追溯两层目录。
首先,`os.path.abspath(__file__)` 返回当前脚本文件的绝对路径。然后,`os.path.dirname()` 被应用一次,得到包含当前脚本文件所在目录的部分。再次应用,就到达了上一级目录。再用一次,就会返回上上一级目录。
举个例子,如果脚本位于 "C:\Users\Username\Documents\MyProject\my_script.py",那么:
- 第一层:`os.path.dirname(os.path.abspath(__file__))` 将返回 "C:\Users\Username\Documents\MyProject"
- 第二层:`os.path.dirname(os.path.dirname(os.path.abspath(__file__)))` 将返回 "C:\Users\Username\Documents"
- 第三层:`os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))` 就只剩根目录 "C:\" 或 "C:/"
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