{"id":1018931,"date":"2024-12-27T12:48:22","date_gmt":"2024-12-27T04:48:22","guid":{"rendered":""},"modified":"2024-12-27T12:48:27","modified_gmt":"2024-12-27T04:48:27","slug":"python%e8%8e%b7%e5%8f%96%e8%b7%af%e5%be%84%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1018931.html","title":{"rendered":"Python\u83b7\u53d6\u8def\u5f84\u5982\u4f55\u4f7f\u7528"},"content":{"rendered":"

\"Python\u83b7\u53d6\u8def\u5f84\u5982\u4f55\u4f7f\u7528\"<\/p>\n

\u5728Python\u4e2d\uff0c\u83b7\u53d6\u8def\u5f84\u7684\u65b9\u5f0f\u6709\u591a\u79cd\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u5e38\u7528\u7684\u8def\u5f84\u83b7\u53d6\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528os\u6a21\u5757\u3001pathlib\u6a21\u5757\u3001\u4ee5\u53casys\u6a21\u5757\u3002<\/strong>\u5176\u4e2d\uff0cos\u6a21\u5757\u662f\u4f20\u7edf\u7684\u65b9\u5f0f\uff0c\u800cpathlib\u5219\u662fPython 3.4\u5f15\u5165\u7684\u66f4\u52a0\u73b0\u4ee3\u5316\u548c\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u3002sys\u6a21\u5757\u4e3b\u8981\u7528\u4e8e\u83b7\u53d6\u4e0e\u811a\u672c\u8fd0\u884c\u76f8\u5173\u7684\u8def\u5f84\u4fe1\u606f\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u4e2d\u7684\u4e00\u4e2a\uff1aos\u6a21\u5757<\/strong>\u3002<\/p>\n<\/p>\n

os\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u7ec4\u7528\u4e8e\u64cd\u4f5c\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u5de5\u5177\u51fd\u6570\u3002\u901a\u8fc7os\u6a21\u5757\uff0c\u6211\u4eec\u53ef\u4ee5\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3001\u811a\u672c\u6240\u5728\u76ee\u5f55\u3001\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u7b49\u3002os.path\u5b50\u6a21\u5757\u4e2d\u5305\u542b\u4e86\u8bb8\u591a\u4e0e\u8def\u5f84\u64cd\u4f5c\u76f8\u5173\u7684\u51fd\u6570\uff0c\u6bd4\u5982os.path.abspath()\u7528\u4e8e\u83b7\u53d6\u7edd\u5bf9\u8def\u5f84\uff0cos.path.join()\u7528\u4e8e\u8def\u5f84\u62fc\u63a5\uff0cos.path.dirname()\u7528\u4e8e\u83b7\u53d6\u8def\u5f84\u7684\u76ee\u5f55\u90e8\u5206\u7b49\u3002\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5728\u5904\u7406\u6587\u4ef6\u548c\u76ee\u5f55\u65f6\u8f7b\u677e\u83b7\u53d6\u6240\u9700\u7684\u8def\u5f84\u4fe1\u606f\u3002<\/p>\n<\/p>\n

\u4e00\u3001OS\u6a21\u5757<\/h3>\n<\/p>\n

os\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u4e2d\u7684\u4e00\u4e2a\u6a21\u5757\uff0c\u63d0\u4f9b\u4e86\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u884c\u4ea4\u4e92\u7684\u591a\u79cd\u65b9\u6cd5\u3002\u5bf9\u4e8e\u8def\u5f84\u64cd\u4f5c\uff0cos\u6a21\u5757\u4e0b\u7684os.path\u5b50\u6a21\u5757\u63d0\u4f9b\u4e86\u8bb8\u591a\u6709\u7528\u7684\u51fd\u6570\u3002<\/p>\n<\/p>\n

1.1 \u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55<\/h4>\n<\/p>\n

\u8981\u83b7\u53d6\u5f53\u524d\u7684\u5de5\u4f5c\u76ee\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528os.getcwd()<\/code>\u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u8fd4\u56de\u5f53\u524d\u7684\u5de5\u4f5c\u76ee\u5f55\u7684\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n<\/p>\n

import os<\/p>\n
current_dir = os.getcwd()<\/p>\n
print("\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u662f\uff1a", current_dir)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e2a\u51fd\u6570\u975e\u5e38\u6709\u7528\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u77e5\u9053\u811a\u672c\u8fd0\u884c\u65f6\u7684\u5de5\u4f5c\u76ee\u5f55\u65f6\u3002<\/p>\n<\/p>\n
1.2 \u83b7\u53d6\u811a\u672c\u6587\u4ef6\u6240\u5728\u76ee\u5f55<\/h4>\n<\/p>\n
\u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u811a\u672c\u6587\u4ef6\u672c\u8eab\u6240\u5728\u7684\u76ee\u5f55\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7os.path.dirname<\/code>\u548cos.path.abspath<\/code>\u51fd\u6570\u7ed3\u5408\u4f7f\u7528\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
import os<\/p>\n
\u83b7\u53d6\u5f53\u524d\u811a\u672c\u7684\u7edd\u5bf9\u8def\u5f84<\/strong><\/h2>\n
script_path = os.path.abspath(__file__)<\/p>\n
\u83b7\u53d6\u811a\u672c\u6240\u5728\u76ee\u5f55<\/strong><\/h2>\n
script_dir = os.path.dirname(script_path)<\/p>\n
print("\u811a\u672c\u6240\u5728\u76ee\u5f55\u662f\uff1a", script_dir)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u83b7\u53d6\u811a\u672c\u6240\u5728\u7684\u76ee\u5f55\uff0c\u65b9\u4fbf\u8fdb\u884c\u6587\u4ef6\u7684\u76f8\u5bf9\u8def\u5f84\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
1.3 \u8def\u5f84\u62fc\u63a5<\/h4>\n<\/p>\n
\u5728\u8fdb\u884c\u8def\u5f84\u64cd\u4f5c\u65f6\uff0c\u901a\u5e38\u9700\u8981\u62fc\u63a5\u591a\u4e2a\u8def\u5f84\u90e8\u5206\u3002\u4f7f\u7528os.path.join<\/code>\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u8def\u5f84\u62fc\u63a5\uff0c\u540c\u65f6\u4fdd\u8bc1\u8def\u5f84\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n
import os<\/p>\n
base_dir = '\/usr\/local'<\/p>\n
sub_dir = 'bin'<\/p>\n
full_path = os.path.join(base_dir, sub_dir)<\/p>\n
print("\u62fc\u63a5\u540e\u7684\u8def\u5f84\u662f\uff1a", full_path)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528os.path.join<\/code>\u53ef\u4ee5\u907f\u514d\u76f4\u63a5\u4f7f\u7528\u5b57\u7b26\u4e32\u62fc\u63a5\u5e26\u6765\u7684\u9519\u8bef\uff0c\u5c24\u5176\u662f\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u8def\u5f84\u5206\u9694\u7b26\u4e0d\u540c\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n
\u4e8c\u3001PATHLIB\u6a21\u5757<\/h3>\n<\/p>\n
pathlib\u662fPython 3.4\u5f15\u5165\u7684\u4e00\u4e2a\u6a21\u5757\uff0c\u63d0\u4f9b\u4e86\u4e00\u79cd\u9762\u5411\u5bf9\u8c61\u7684\u8def\u5f84\u64cd\u4f5c\u65b9\u5f0f\u3002pathlib\u6a21\u5757\u4e2d\u7684Path\u7c7b\u4f7f\u8def\u5f84\u64cd\u4f5c\u66f4\u52a0\u76f4\u89c2\u548c\u6613\u4e8e\u4f7f\u7528\u3002<\/p>\n<\/p>\n
2.1 \u57fa\u672c\u8def\u5f84\u64cd\u4f5c<\/h4>\n<\/p>\n
Path\u7c7b\u63d0\u4f9b\u4e86\u8bb8\u591a\u65b9\u6cd5\u6765\u83b7\u53d6\u548c\u64cd\u4f5c\u8def\u5f84\u4fe1\u606f\u3002\u4f7f\u7528Path\u7c7b\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u83b7\u53d6\u5f53\u524d\u8def\u5f84\u3001\u7236\u76ee\u5f55\u3001\u6587\u4ef6\u540d\u7b49\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
\u83b7\u53d6\u5f53\u524d\u8def\u5f84<\/strong><\/h2>\n
current_path = Path.cwd()<\/p>\n
print("\u5f53\u524d\u8def\u5f84\u662f\uff1a", current_path)<\/p>\n
\u83b7\u53d6\u6587\u4ef6\u540d<\/strong><\/h2>\n
file_name = current_path.name<\/p>\n
print("\u6587\u4ef6\u540d\u662f\uff1a", file_name)<\/p>\n
\u83b7\u53d6\u7236\u76ee\u5f55<\/strong><\/h2>\n
parent_dir = current_path.parent<\/p>\n
print("\u7236\u76ee\u5f55\u662f\uff1a", parent_dir)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e9b\u65b9\u6cd5\u4f7f\u5f97\u8def\u5f84\u64cd\u4f5c\u66f4\u52a0\u76f4\u89c2\u548c\u6613\u4e8e\u7406\u89e3\u3002<\/p>\n<\/p>\n
2.2 \u8def\u5f84\u62fc\u63a5\u4e0e\u521b\u5efa<\/h4>\n<\/p>\n
pathlib\u6a21\u5757\u540c\u6837\u63d0\u4f9b\u4e86\u8def\u5f84\u62fc\u63a5\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u652f\u6301\u94fe\u5f0f\u64cd\u4f5c\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u65b9\u4fbf\u5730\u521b\u5efa\u76ee\u5f55\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
\u8def\u5f84\u62fc\u63a5<\/strong><\/h2>\n
base_path = Path('\/usr\/local')<\/p>\n
full_path = base_path \/ 'bin'<\/p>\n
print("\u62fc\u63a5\u540e\u7684\u8def\u5f84\u662f\uff1a", full_path)<\/p>\n
\u521b\u5efa\u76ee\u5f55<\/strong><\/h2>\n
new_dir = Path('\/tmp\/new_directory')<\/p>\n
new_dir.mkdir(parents=True, exist_ok=True)<\/p>\n
print("\u76ee\u5f55\u521b\u5efa\u6210\u529f\uff1a", new_dir)<\/p>\n
<\/code><\/pre>\n<\/p>\n
Path\u7c7b\u7684\u8bbe\u8ba1\u4f7f\u5f97\u8def\u5f84\u64cd\u4f5c\u66f4\u52a0\u81ea\u7136\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u8fdb\u884c\u591a\u6b65\u8def\u5f84\u64cd\u4f5c\u65f6\u3002<\/p>\n<\/p>\n
\u4e09\u3001SYS\u6a21\u5757<\/h3>\n<\/p>\n
sys\u6a21\u5757\u4e3b\u8981\u7528\u4e8e\u83b7\u53d6\u4e0ePython\u89e3\u91ca\u5668\u548c\u811a\u672c\u8fd0\u884c\u76f8\u5173\u7684\u4fe1\u606f\u3002\u5bf9\u4e8e\u8def\u5f84\u64cd\u4f5c\uff0csys\u6a21\u5757\u53ef\u4ee5\u7528\u4e8e\u83b7\u53d6\u811a\u672c\u7684\u8fd0\u884c\u8def\u5f84\u3002<\/p>\n<\/p>\n
3.1 \u83b7\u53d6\u811a\u672c\u8fd0\u884c\u8def\u5f84<\/h4>\n<\/p>\n
\u901a\u8fc7sys\u6a21\u5757\u7684argv<\/code>\u5c5e\u6027\uff0c\u53ef\u4ee5\u83b7\u53d6\u5f53\u524d\u811a\u672c\u7684\u8def\u5f84\uff0c\u8fd9\u5bf9\u4e8e\u9700\u8981\u77e5\u9053\u811a\u672c\u542f\u52a8\u4f4d\u7f6e\u7684\u60c5\u51b5\u7279\u522b\u6709\u7528\u3002<\/p>\n<\/p>\n
import sys<\/p>\n
\u83b7\u53d6\u811a\u672c\u8fd0\u884c\u7684\u8def\u5f84<\/strong><\/h2>\n
script_path = sys.argv[0]<\/p>\n
print("\u811a\u672c\u8fd0\u884c\u7684\u8def\u5f84\u662f\uff1a", script_path)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u5728\u9700\u8981\u4e0e\u547d\u4ee4\u884c\u53c2\u6570\u7ed3\u5408\u4f7f\u7528\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
3.2 \u83b7\u53d6Python\u8def\u5f84\u4fe1\u606f<\/h4>\n<\/p>\n
sys\u6a21\u5757\u8fd8\u53ef\u4ee5\u7528\u4e8e\u83b7\u53d6Python\u89e3\u91ca\u5668\u7684\u8def\u5f84\u4fe1\u606f\uff0c\u6bd4\u5982\u53ef\u6267\u884c\u6587\u4ef6\u8def\u5f84\u3001\u6a21\u5757\u641c\u7d22\u8def\u5f84\u7b49\u3002<\/p>\n<\/p>\n
import sys<\/p>\n
\u83b7\u53d6Python\u53ef\u6267\u884c\u6587\u4ef6\u7684\u8def\u5f84<\/strong><\/h2>\n
python_executable = sys.executable<\/p>\n
print("Python\u53ef\u6267\u884c\u6587\u4ef6\u8def\u5f84\u662f\uff1a", python_executable)<\/p>\n
\u83b7\u53d6\u6a21\u5757\u641c\u7d22\u8def\u5f84<\/strong><\/h2>\n
python_path = sys.path<\/p>\n
print("Python\u6a21\u5757\u641c\u7d22\u8def\u5f84\u662f\uff1a", python_path)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u4e9b\u4fe1\u606f\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u4e86\u89e3Python\u73af\u5883\u7684\u914d\u7f6e\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5e38\u89c1\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u83b7\u53d6\u8def\u5f84\u7684\u64cd\u4f5c\u901a\u5e38\u4e0e\u6587\u4ef6\u8bfb\u5199\u3001\u76ee\u5f55\u7ba1\u7406\u3001\u914d\u7f6e\u52a0\u8f7d\u7b49\u4efb\u52a1\u7ed3\u5408\u4f7f\u7528\u3002\u4e0b\u9762\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n
4.1 \u914d\u7f6e\u6587\u4ef6\u52a0\u8f7d<\/h4>\n<\/p>\n
\u5728\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u901a\u5e38\u9700\u8981\u52a0\u8f7d\u914d\u7f6e\u6587\u4ef6\u3002\u4e3a\u4e86\u4fdd\u8bc1\u914d\u7f6e\u6587\u4ef6\u80fd\u591f\u6b63\u786e\u52a0\u8f7d\uff0c\u901a\u5e38\u9700\u8981\u6839\u636e\u811a\u672c\u7684\u8def\u5f84\u6765\u786e\u5b9a\u914d\u7f6e\u6587\u4ef6\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
import os<\/p>\n
def load_config():<\/p>\n
    script_dir = os.path.dirname(os.path.abspath(__file__))<\/p>\n
    config_path = os.path.join(script_dir, 'config.ini')<\/p>\n
    with open(config_path, 'r') as f:<\/p>\n
        config = f.read()<\/p>\n
    return config<\/p>\n
config = load_config()<\/p>\n
print("\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\uff1a", config)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u52a8\u6001\u83b7\u53d6\u811a\u672c\u76ee\u5f55\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u914d\u7f6e\u6587\u4ef6\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u90fd\u80fd\u6b63\u786e\u52a0\u8f7d\u3002<\/p>\n<\/p>\n
4.2 \u65e5\u5fd7\u6587\u4ef6\u7ba1\u7406<\/h4>\n<\/p>\n
\u5728\u65e5\u5fd7\u7ba1\u7406\u4e2d\uff0c\u901a\u5e38\u9700\u8981\u6839\u636e\u65e5\u671f\u521b\u5efa\u4e0d\u540c\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u5728\u7279\u5b9a\u76ee\u5f55\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528pathlib\u6a21\u5757\u6765\u7b80\u5316\u8fd9\u4e00\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
import datetime<\/p>\n
def create_log_file():<\/p>\n
    log_dir = Path('\/var\/log\/myapp')<\/p>\n
    log_dir.mkdir(parents=True, exist_ok=True)<\/p>\n
    log_file = log_dir \/ f"log_{datetime.date.today()}.txt"<\/p>\n
    with log_file.open('a') as f:<\/p>\n
        f.write("\u65e5\u5fd7\u5185\u5bb9\\n")<\/p>\n
    return log_file<\/p>\n
log_file = create_log_file()<\/p>\n
print("\u65e5\u5fd7\u6587\u4ef6\u5df2\u521b\u5efa\uff1a", log_file)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u7ba1\u7406\u65e5\u5fd7\u6587\u4ef6\uff0c\u786e\u4fdd\u65e5\u5fd7\u4fe1\u606f\u7684\u6709\u5e8f\u548c\u53ef\u8ffd\u6eaf\u6027\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u8def\u5f84\u76f8\u5173\u7684\u9519\u8bef\u5904\u7406<\/h3>\n<\/p>\n
\u5728\u8def\u5f84\u64cd\u4f5c\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u9519\u8bef\uff0c\u6bd4\u5982\u8def\u5f84\u4e0d\u5b58\u5728\u3001\u6743\u9650\u4e0d\u8db3\u7b49\u3002\u5728\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u9700\u8981\u5904\u7406\u8fd9\u4e9b\u9519\u8bef\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n<\/p>\n
5.1 \u5904\u7406\u8def\u5f84\u4e0d\u5b58\u5728\u9519\u8bef<\/h4>\n<\/p>\n
\u5f53\u8bbf\u95ee\u7684\u8def\u5f84\u4e0d\u5b58\u5728\u65f6\uff0c\u901a\u5e38\u4f1a\u5f15\u53d1FileNotFoundError\u5f02\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528try-except\u8bed\u53e5\u6765\u6355\u83b7\u548c\u5904\u7406\u8fd9\u4e00\u5f02\u5e38\u3002<\/p>\n<\/p>\n
import os<\/p>\n
def read_file(file_path):<\/p>\n
    try:<\/p>\n
        with open(file_path, 'r') as f:<\/p>\n
            return f.read()<\/p>\n
    except FileNotFoundError:<\/p>\n
        print(f"\u6587\u4ef6\u672a\u627e\u5230\uff1a{file_path}")<\/p>\n
        return None<\/p>\n
file_content = read_file('\/path\/to\/nonexistent\/file.txt')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u6355\u83b7\u5f02\u5e38\uff0c\u53ef\u4ee5\u907f\u514d\u7a0b\u5e8f\u56e0\u4e3a\u8def\u5f84\u95ee\u9898\u800c\u5d29\u6e83\uff0c\u5e76\u63d0\u4f9b\u7528\u6237\u53cb\u597d\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<\/p>\n
5.2 \u5904\u7406\u6743\u9650\u4e0d\u8db3\u9519\u8bef<\/h4>\n<\/p>\n
\u5f53\u5c1d\u8bd5\u8bbf\u95ee\u53d7\u9650\u8def\u5f84\u65f6\uff0c\u53ef\u80fd\u4f1a\u5f15\u53d1PermissionError\u5f02\u5e38\u3002\u53ef\u4ee5\u540c\u6837\u4f7f\u7528try-except\u8bed\u53e5\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
def create_file(file_path):<\/p>\n
    try:<\/p>\n
        path = Path(file_path)<\/p>\n
        path.touch(exist_ok=True)<\/p>\n
        return path<\/p>\n
    except PermissionError:<\/p>\n
        print(f"\u6743\u9650\u4e0d\u8db3\uff0c\u65e0\u6cd5\u521b\u5efa\u6587\u4ef6\uff1a{file_path}")<\/p>\n
        return None<\/p>\n
new_file = create_file('\/restricted_area\/file.txt')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u7a0b\u5e8f\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\uff0c\u540c\u65f6\u544a\u77e5\u7528\u6237\u5177\u4f53\u7684\u9519\u8bef\u539f\u56e0\u3002<\/p>\n<\/p>\n
\u516d\u3001\u8def\u5f84\u64cd\u4f5c\u7684\u6700\u4f73\u5b9e\u8df5<\/h3>\n<\/p>\n
\u5728\u5b9e\u9645\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u9075\u5faa\u8def\u5f84\u64cd\u4f5c\u7684\u6700\u4f73\u5b9e\u8df5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n
6.1 \u4f7f\u7528\u6807\u51c6\u5e93<\/h4>\n<\/p>\n
Python\u6807\u51c6\u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u8def\u5f84\u64cd\u4f5c\u5de5\u5177\uff0c\u4f18\u5148\u4f7f\u7528\u6807\u51c6\u5e93\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u79fb\u690d\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<\/p>\n
import os<\/p>\n
\u4f7f\u7528os.path.join\u8fdb\u884c\u8def\u5f84\u62fc\u63a5<\/strong><\/h2>\n
def get_data_file_path():<\/p>\n
    base_dir = os.path.dirname(os.path.abspath(__file__))<\/p>\n
    return os.path.join(base_dir, 'data', 'file.txt')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u4f7f\u7528\u6807\u51c6\u5e93\uff0c\u907f\u514d\u4e86\u4f9d\u8d56\u5916\u90e8\u5305\u7684\u590d\u6742\u6027\u548c\u6f5c\u5728\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/p>\n
6.2 \u5904\u7406\u8de8\u5e73\u53f0\u5dee\u5f02<\/h4>\n<\/p>\n
\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u8def\u5f84\u5206\u9694\u7b26\u548c\u8def\u5f84\u683c\u5f0f\u53ef\u80fd\u4e0d\u540c\u3002\u4f7f\u7528Python\u63d0\u4f9b\u7684\u8def\u5f84\u64cd\u4f5c\u51fd\u6570\uff0c\u53ef\u4ee5\u907f\u514d\u8fd9\u4e9b\u5dee\u5f02\u5e26\u6765\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
\u4f7f\u7528pathlib\u5904\u7406\u8de8\u5e73\u53f0\u8def\u5f84<\/strong><\/h2>\n
def create_output_dir():<\/p>\n
    output_dir = Path('output')<\/p>\n
    output_dir.mkdir(exist_ok=True)<\/p>\n
    return output_dir<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u7f16\u5199\u51fa\u9002\u7528\u4e8e\u591a\u79cd\u5e73\u53f0\u7684\u4ee3\u7801\uff0c\u51cf\u5c11\u5e73\u53f0\u5dee\u5f02\u5e26\u6765\u7684\u9519\u8bef\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
Python\u63d0\u4f9b\u4e86\u591a\u79cd\u8def\u5f84\u83b7\u53d6\u548c\u64cd\u4f5c\u7684\u65b9\u6cd5\uff0c\u5305\u62ecos\u6a21\u5757\u3001pathlib\u6a21\u5757\u548csys\u6a21\u5757\u3002os\u6a21\u5757\u9002\u5408\u4f20\u7edf\u7684\u8def\u5f84\u64cd\u4f5c\uff0cpathlib\u6a21\u5757\u63d0\u4f9b\u4e86\u66f4\u52a0\u73b0\u4ee3\u5316\u548c\u9762\u5411\u5bf9\u8c61\u7684\u8def\u5f84\u64cd\u4f5c\u65b9\u5f0f\uff0c\u800csys\u6a21\u5757\u5219\u7528\u4e8e\u83b7\u53d6\u4e0e\u811a\u672c\u8fd0\u884c\u76f8\u5173\u7684\u8def\u5f84\u4fe1\u606f\u3002<\/strong>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u5e76\u7ed3\u5408\u5f02\u5e38\u5904\u7406\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u7f16\u5199\u51fa\u5065\u58ee\u7684\u8def\u5f84\u64cd\u4f5c\u4ee3\u7801\u3002\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u65b9\u6cd5\u7684\u638c\u63e1\uff0c\u5f00\u53d1\u8005\u80fd\u591f\u66f4\u52a0\u9ad8\u6548\u5730\u8fdb\u884c\u6587\u4ef6\u548c\u76ee\u5f55\u7ba1\u7406\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u7075\u6d3b\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528os<\/code>\u6a21\u5757\u4e2d\u7684getcwd()<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
import os\ncurrent_directory = os.getcwd()\nprint("\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u662f:", current_directory)\n<\/code><\/pre>\n
\u8fd9\u884c\u4ee3\u7801\u5c06\u8f93\u51fa\u8fd0\u884c\u8be5\u811a\u672c\u65f6\u7684\u5de5\u4f5c\u76ee\u5f55\u8def\u5f84\u3002<\/p>\n
\u5982\u4f55\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\uff1f<\/strong>
\u8981\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\uff0c\u53ef\u4ee5\u4f7f\u7528os.path.abspath()<\/code>\u51fd\u6570\u3002\u60a8\u53ea\u9700\u4f20\u9012\u76f8\u5bf9\u8def\u5f84\u4f5c\u4e3a\u53c2\u6570\uff0c\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
import os\nrelative_path = 'example.txt'\nabsolute_path = os.path.abspath(relative_path)\nprint("\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u662f:", absolute_path)\n<\/code><\/pre>\n
\u8fd9\u5c06\u8fd4\u56de\u6307\u5b9a\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\uff0c\u65b9\u4fbf\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u3002<\/p>\n
\u5982\u4f55\u5217\u51fa\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u548c\u6587\u4ef6\u5939\uff1f<\/strong>
\u4f7f\u7528os<\/code>\u6a21\u5757\u4e2d\u7684listdir()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u5217\u51fa\u6307\u5b9a\u76ee\u5f55\u4e2d\u7684\u6240\u6709\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u3002\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n
import os\ndirectory_path = 'your_directory_path'\nitems = os.listdir(directory_path)\nprint("\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u6709:", items)\n<\/code><\/pre>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u83b7\u53d6\u76ee\u5f55\u4e2d\u6240\u6709\u9879\u7684\u5217\u8868\uff0c\u4fbf\u4e8e\u8fdb\u884c\u540e\u7eed\u5904\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u83b7\u53d6\u8def\u5f84\u7684\u65b9\u5f0f\u6709\u591a\u79cd\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u5e38\u7528\u7684\u8def\u5f84\u83b7\u53d6\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528os\u6a21\u5757\u3001p […]","protected":false},"author":3,"featured_media":1018935,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1018931"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1018931"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1018931\/revisions"}],"predecessor-version":[{"id":1018936,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1018931\/revisions\/1018936"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1018935"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1018931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1018931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1018931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}