cur_dir = [folder for folder in os.listdir(os.path.join(os.path.join(root_dir,topic))) if folder[0:4]=='cur_'][0]
时间: 2024-06-02 18:07:30 浏览: 12
你想知道这段代码的作用是什么吗?这段代码是用来查找指定目录下以"cur_"开头的文件夹,并返回第一个符合条件的文件夹的名称。具体来说,它首先使用os.path.join()函数将根目录(root_dir)和主题(topic)拼接成完整的路径,然后使用os.listdir()函数列出该路径下的所有文件和文件夹。接着,它使用一个列表解析式过滤出所有以"cur_"开头的文件夹,并在返回第一个满足条件的文件夹的名称之前添加一个索引[0]。
相关问题
cur_dir = '/'.join(os.path.abspath(__file__).split('/')[:-1]) self.data_path = os.path.join(cur_dir, 'data/medical.json')
As an AI language model, I cannot accurately determine the context and purpose of this code snippet. However, I can explain what each line does:
- `cur_dir = '/'.join(os.path.abspath(__file__).split('/')[:-1])`: This line sets the variable `cur_dir` to the absolute path of the current file, obtained using `os.path.abspath(__file__)`, and then splits it into its individual directory components using `split('/')`. The `[:-1]` notation means that all components except the last one (which is the file name) are included. Finally, the components are joined back together using `'/'` as the separator to create the directory path.
- `self.data_path = os.path.join(cur_dir, 'data/medical.json')`: This line sets the instance variable `data_path` to the path of a JSON file named `medical.json` located in a subdirectory called `data` within the directory specified by `cur_dir`. This is accomplished using the `os.path.join()` function, which combines the two path components into a single path string.
if os.path.isfile(os.path.join(cur_dir, item)):
这段代码是用来判断当前目录下的某个文件是否存在的,如果存在,则输出`- -_-`,否则输出`/_\ /_\ /_\`。代码中`os.path.join(cur_dir, item)`用来拼接当前路径和文件名,`os.path.isfile()`用于判断是否是文件。完整代码如下所示:
```python
import os
cur_dir = os.path.abspath(os.path.dirname(__file__)) # 获取当前文件所在目录的绝对路径
def check_file_exist(item):
if os.path.isfile(os.path.join(cur_dir, item)):
print("- -_- -_-")
else:
print("/_\ /_\ /_\ ")
check_file_exist("test.txt") # 调用函数并传入文件名
```
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