{"id":1055704,"date":"2024-12-31T14:53:09","date_gmt":"2024-12-31T06:53:09","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1055704.html"},"modified":"2024-12-31T14:53:11","modified_gmt":"2024-12-31T06:53:11","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e8%bf%94%e5%9b%9e%e6%96%87%e4%bb%b6%e7%9a%84%e5%9c%b0%e5%9d%80","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1055704.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u8fd4\u56de\u6587\u4ef6\u7684\u5730\u5740"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u8fd4\u56de\u6587\u4ef6\u7684\u5730\u5740\"<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u8fd4\u56de\u6587\u4ef6\u7684\u5730\u5740<\/strong>\uff0c\u5982\u4f7f\u7528os.path<\/code>\u6a21\u5757\u3001pathlib<\/code>\u6a21\u5757\u3001\u4ee5\u53ca__file__<\/code>\u5c5e\u6027\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u3001\u76f8\u5bf9\u8def\u5f84\u3001\u6587\u4ef6\u6240\u5728\u76ee\u5f55\u7b49<\/strong>\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\uff0c\u5e76\u63a2\u8ba8\u5b83\u4eec\u7684\u4f7f\u7528\u573a\u666f\u548c\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528os.path\u6a21\u5757<\/p>\n<\/p>\n

os.path<\/code>\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5904\u7406\u6587\u4ef6\u8def\u5f84\u3002\u5728\u83b7\u53d6\u6587\u4ef6\u5730\u5740\u65f6\uff0cos.path.abspath<\/code>\u548cos.path.dirname<\/code>\u662f\u6700\u5e38\u7528\u7684\u4e24\u4e2a\u51fd\u6570\u3002<\/p>\n<\/p>\n

1\u3001os.path.abspath<\/h3>\n<\/p>\n

os.path.abspath<\/code>\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u3002\u7edd\u5bf9\u8def\u5f84\u662f\u6307\u4ece\u6839\u76ee\u5f55\u5f00\u59cb\u7684\u8def\u5f84\uff0c\u4e0d\u4f9d\u8d56\u4e8e\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3002<\/p>\n<\/p>\n

import os<\/p>\n
def get_absolute_path(file_name):<\/p>\n
    return os.path.abspath(file_name)<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
file_name = 'example.txt'<\/p>\n
absolute_path = get_absolute_path(file_name)<\/p>\n
print(f'Absolute path: {absolute_path}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570get_absolute_path<\/code>\uff0c\u5b83\u63a5\u53d7\u6587\u4ef6\u540d\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u8be5\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u3002os.path.abspath<\/code>\u51fd\u6570\u4f1a\u5c06\u76f8\u5bf9\u8def\u5f84\u8f6c\u6362\u4e3a\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n<\/p>\n
2\u3001os.path.dirname<\/h3>\n<\/p>\n
os.path.dirname<\/code>\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55\u3002\u5b83\u8fd4\u56de\u7684\u662f\u6587\u4ef6\u8def\u5f84\u4e2d\u53bb\u6389\u6587\u4ef6\u540d\u90e8\u5206\u7684\u8def\u5f84\u3002<\/p>\n<\/p>\n
import os<\/p>\n
def get_directory(file_name):<\/p>\n
    return os.path.dirname(os.path.abspath(file_name))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
file_name = 'example.txt'<\/p>\n
directory = get_directory(file_name)<\/p>\n
print(f'Directory: {directory}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86os.path.dirname<\/code>\u548cos.path.abspath<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55\u3002\u9996\u5148\uff0c\u6211\u4eec\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\uff0c\u7136\u540e\u4f7f\u7528os.path.dirname<\/code>\u51fd\u6570\u83b7\u53d6\u8be5\u8def\u5f84\u7684\u76ee\u5f55\u90e8\u5206\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528pathlib\u6a21\u5757<\/p>\n<\/p>\n
pathlib<\/code>\u6a21\u5757\u662fPython 3.4\u5f15\u5165\u7684\u4e00\u4e2a\u9762\u5411\u5bf9\u8c61\u7684\u6587\u4ef6\u7cfb\u7edf\u8def\u5f84\u5904\u7406\u5e93\u3002\u76f8\u6bd4\u4e8eos.path<\/code>\u6a21\u5757\uff0cpathlib<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u66f4\u52a0\u76f4\u89c2\u548c\u6613\u7528\u7684API\u3002<\/p>\n<\/p>\n
1\u3001Path.resolve<\/h3>\n<\/p>\n
Path.resolve<\/code>\u65b9\u6cd5\u7528\u4e8e\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
def get_absolute_path(file_name):<\/p>\n
    return Path(file_name).resolve()<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
file_name = 'example.txt'<\/p>\n
absolute_path = get_absolute_path(file_name)<\/p>\n
print(f'Absolute path: {absolute_path}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Path.resolve<\/code>\u65b9\u6cd5\u6765\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u3002Path<\/code>\u5bf9\u8c61\u8868\u793a\u6587\u4ef6\u8def\u5f84\uff0cresolve<\/code>\u65b9\u6cd5\u4f1a\u5c06\u5176\u8f6c\u6362\u4e3a\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n<\/p>\n
2\u3001Path.parent<\/h3>\n<\/p>\n
Path.parent<\/code>\u5c5e\u6027\u7528\u4e8e\u83b7\u53d6\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55\u3002<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
def get_directory(file_name):<\/p>\n
    return Path(file_name).resolve().parent<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
file_name = 'example.txt'<\/p>\n
directory = get_directory(file_name)<\/p>\n
print(f'Directory: {directory}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Path.parent<\/code>\u5c5e\u6027\u6765\u83b7\u53d6\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55\u3002\u9996\u5148\uff0c\u6211\u4eec\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\uff0c\u7136\u540e\u901a\u8fc7parent<\/code>\u5c5e\u6027\u83b7\u53d6\u8be5\u8def\u5f84\u7684\u76ee\u5f55\u90e8\u5206\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528__file__\u5c5e\u6027<\/p>\n<\/p>\n
\u5728Python\u811a\u672c\u4e2d\uff0c__file__<\/code>\u5c5e\u6027\u8868\u793a\u5f53\u524d\u811a\u672c\u7684\u6587\u4ef6\u8def\u5f84\u3002\u53ef\u4ee5\u901a\u8fc7__file__<\/code>\u5c5e\u6027\u6765\u83b7\u53d6\u5f53\u524d\u811a\u672c\u7684\u7edd\u5bf9\u8def\u5f84\u548c\u6240\u5728\u76ee\u5f55\u3002<\/p>\n<\/p>\n
1\u3001\u83b7\u53d6\u5f53\u524d\u811a\u672c\u7684\u7edd\u5bf9\u8def\u5f84<\/h3>\n<\/p>\n
import os<\/p>\n
absolute_path = os.path.abspath(__file__)<\/p>\n
print(f'Absolute path of the script: {absolute_path}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86__file__<\/code>\u5c5e\u6027\u548cos.path.abspath<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u5f53\u524d\u811a\u672c\u7684\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n<\/p>\n
2\u3001\u83b7\u53d6\u5f53\u524d\u811a\u672c\u6240\u5728\u7684\u76ee\u5f55<\/h3>\n<\/p>\n
import os<\/p>\n
directory = os.path.dirname(os.path.abspath(__file__))<\/p>\n
print(f'Directory of the script: {directory}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86__file__<\/code>\u5c5e\u6027\u548cos.path.dirname<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u5f53\u524d\u811a\u672c\u6240\u5728\u7684\u76ee\u5f55\u3002<\/p>\n<\/p>\n
\u56db\u3001\u7efc\u5408\u4f7f\u7528\u793a\u4f8b<\/p>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u7efc\u5408\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u6765\u5904\u7406\u6587\u4ef6\u8def\u5f84\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7efc\u5408\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u548c\u6240\u5728\u76ee\u5f55\uff0c\u5e76\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
import os<\/p>\n
from pathlib import Path<\/p>\n
def get_file_info(file_name):<\/p>\n
    # \u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84<\/p>\n
    absolute_path = Path(file_name).resolve()<\/p>\n
    # \u83b7\u53d6\u6587\u4ef6\u6240\u5728\u7684\u76ee\u5f55<\/p>\n
    directory = absolute_path.parent<\/p>\n
    return absolute_path, directory<\/p>\n
def mAI<\/a>n():<\/p>\n
    file_name = 'example.txt'<\/p>\n
    absolute_path, directory = get_file_info(file_name)<\/p>\n
    print(f'Absolute path: {absolute_path}')<\/p>\n
    print(f'Directory: {directory}')<\/p>\n
    # \u521b\u5efa\u6587\u4ef6\u5e76\u5199\u5165\u5185\u5bb9<\/p>\n
    with open(absolute_path, 'w') as file:<\/p>\n
        file.write('Hello, world!')<\/p>\n
    # \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/p>\n
    with open(absolute_path, 'r') as file:<\/p>\n
        content = file.read()<\/p>\n
        print(f'File content: {content}')<\/p>\n
if __name__ == '__main__':<\/p>\n
    main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u7efc\u5408\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570get_file_info<\/code>\uff0c\u7528\u4e8e\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u548c\u6240\u5728\u76ee\u5f55\u3002\u5728main<\/code>\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u8c03\u7528get_file_info<\/code>\u51fd\u6570\u83b7\u53d6\u6587\u4ef6\u4fe1\u606f\uff0c\u5e76\u8fdb\u884c\u6587\u4ef6\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5728Python\u4e2d\u83b7\u53d6\u6587\u4ef6\u7684\u5730\u5740\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u6587\u4ef6\u64cd\u4f5c\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u548c\u6a21\u5757\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528os.path.abspath()<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\u3002\u4f60\u53ea\u9700\u4f20\u5165\u6587\u4ef6\u7684\u76f8\u5bf9\u8def\u5f84\u6216\u6587\u4ef6\u540d\uff0c\u8fd9\u4e2a\u51fd\u6570\u4f1a\u8fd4\u56de\u8be5\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\u3002\u4f8b\u5982\uff1a  <\/p>\n
import os  \nfile_path = os.path.abspath('your_file.txt')  \nprint(file_path)  \n<\/code><\/pre>\n
\u8fd9\u6837\u5c31\u80fd\u591f\u8f7b\u677e\u83b7\u53d6\u6307\u5b9a\u6587\u4ef6\u7684\u7edd\u5bf9\u5730\u5740\u3002<\/p>\n
\u4f7f\u7528Python\u5982\u4f55\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728\uff1f<\/strong>
\u8981\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728\uff0c\u53ef\u4ee5\u4f7f\u7528os.path.exists()<\/code>\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u6587\u4ef6\u8def\u5f84\u4f5c\u4e3a\u53c2\u6570\uff0c\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u5219\u8fd4\u56deTrue<\/code>\uff0c\u5426\u5219\u8fd4\u56deFalse<\/code>\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
import os  \nfile_exists = os.path.exists('your_file.txt')  \nprint(file_exists)  # \u8f93\u51faTrue\u6216False  \n<\/code><\/pre>\n
\u8fd9\u5bf9\u4e8e\u786e\u4fdd\u5728\u64cd\u4f5c\u6587\u4ef6\u4e4b\u524d\u786e\u8ba4\u5176\u5b58\u5728\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/p>\n
\u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u7684\u8def\u5f84\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528os.getcwd()<\/code>\u51fd\u6570\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u7684\u8def\u5f84\u3002\u8fd9\u5728\u9700\u8981\u4e86\u89e3\u811a\u672c\u8fd0\u884c\u73af\u5883\u65f6\u7279\u522b\u6709\u7528\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
import os  \ncurrent_directory = os.getcwd()  \nprint(current_directory)  \n<\/code><\/pre>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u8f7b\u677e\u4e86\u89e3\u5f53\u524d\u811a\u672c\u7684\u6267\u884c\u4f4d\u7f6e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u8fd4\u56de\u6587\u4ef6\u7684\u5730\u5740\uff0c\u5982\u4f7f\u7528os.path\u6a21\u5757\u3001pathlib\u6a21\u5757\u3001\u4ee5\u53ca__fil […]","protected":false},"author":3,"featured_media":1055706,"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\/1055704"}],"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=1055704"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1055704\/revisions"}],"predecessor-version":[{"id":1055709,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1055704\/revisions\/1055709"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1055706"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1055704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1055704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1055704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}