{"id":996611,"date":"2024-12-27T09:16:24","date_gmt":"2024-12-27T01:16:24","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/996611.html"},"modified":"2024-12-27T09:16:26","modified_gmt":"2024-12-27T01:16:26","slug":"%e5%81%9apython%e5%a6%82%e4%bd%95%e5%af%bc%e5%85%a5%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/996611.html","title":{"rendered":"\u505apython\u5982\u4f55\u5bfc\u5165\u6587\u4ef6"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25072755\/e068aee6-bb2c-44b5-a610-9910bbad8026.webp\" alt=\"\u505apython\u5982\u4f55\u5bfc\u5165\u6587\u4ef6\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u5bfc\u5165\u6587\u4ef6\u7684\u5e38\u89c1\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528import\u8bed\u53e5\u3001\u4f7f\u7528from&#8230;import\u8bed\u53e5\u3001\u5229\u7528sys\u6a21\u5757\u6dfb\u52a0\u8def\u5f84\u3001\u4f7f\u7528importlib\u6a21\u5757<\/strong>\u3002\u5176\u4e2d\uff0cimport\u8bed\u53e5\u548cfrom&#8230;import\u8bed\u53e5\u662f\u6700\u57fa\u672c\u548c\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u5b83\u4eec\u7528\u4e8e\u5bfc\u5165Python\u7684\u6807\u51c6\u5e93\u6a21\u5757\u6216\u81ea\u5b9a\u4e49\u6a21\u5757\uff1b\u5229\u7528sys\u6a21\u5757\u6dfb\u52a0\u8def\u5f84\u53ef\u4ee5\u8ba9Python\u5728\u6307\u5b9a\u8def\u5f84\u4e2d\u67e5\u627e\u6a21\u5757\uff1b\u800cimportlib\u6a21\u5757\u5219\u63d0\u4f9b\u4e86\u66f4\u7075\u6d3b\u7684\u5bfc\u5165\u673a\u5236\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u5bfc\u5165\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528IMPORT\u8bed\u53e5\u5bfc\u5165\u6a21\u5757<\/p>\n<\/p>\n<p><p>import\u8bed\u53e5\u662fPython\u4e2d\u5bfc\u5165\u6a21\u5757\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u901a\u8fc7import\u8bed\u53e5\uff0c\u53ef\u4ee5\u5bfc\u5165Python\u7684\u6807\u51c6\u5e93\u6a21\u5757\u6216\u81ea\u5b9a\u4e49\u6a21\u5757\uff0c\u5177\u4f53\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u5bfc\u5165\u6807\u51c6\u5e93\u6a21\u5757<\/strong><\/li>\n<\/ol>\n<p><p>Python\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6807\u51c6\u5e93\u6a21\u5757\uff0c\u53ef\u4ee5\u901a\u8fc7import\u8bed\u53e5\u76f4\u63a5\u5bfc\u5165\u3002\u4f8b\u5982\uff0c\u8981\u4f7f\u7528\u6570\u5b66\u51fd\u6570\uff0c\u53ef\u4ee5\u5bfc\u5165math\u6a21\u5757\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import math<\/p>\n<p>print(math.sqrt(16))  # \u8f93\u51fa4.0<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757<\/strong><\/li>\n<\/ol>\n<p><p>\u5982\u679c\u9700\u8981\u5bfc\u5165\u81ea\u5df1\u7f16\u5199\u7684\u6a21\u5757\uff0c\u786e\u4fdd\u6a21\u5757\u6587\u4ef6\u5728Python\u7684\u641c\u7d22\u8def\u5f84\u4e2d\u3002\u4f8b\u5982\uff0c\u6709\u4e00\u4e2a\u6587\u4ef6\u540d\u4e3amymodule.py\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u51fd\u6570greet()\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># mymodule.py<\/p>\n<p>def greet(name):<\/p>\n<p>    return f&quot;Hello, {name}!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u53ef\u4ee5\u5728\u53e6\u4e00\u4e2a\u6587\u4ef6\u4e2d\u5bfc\u5165\u5e76\u4f7f\u7528\u8fd9\u4e2a\u6a21\u5757\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import mymodule<\/p>\n<p>print(mymodule.greet(&quot;Alice&quot;))  # \u8f93\u51faHello, Alice!<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528FROM&#8230;IMPORT\u8bed\u53e5<\/p>\n<\/p>\n<p><p>from&#8230;import\u8bed\u53e5\u5141\u8bb8\u4ece\u4e00\u4e2a\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u7684\u5c5e\u6027\u6216\u51fd\u6570\uff0c\u8fd9\u53ef\u4ee5\u907f\u514d\u5bfc\u5165\u6574\u4e2a\u6a21\u5757\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u53d8\u91cf<\/strong><\/li>\n<\/ol>\n<p><p>\u4ecemath\u6a21\u5757\u4e2d\u53ea\u5bfc\u5165sqrt\u51fd\u6570\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from math import sqrt<\/p>\n<p>print(sqrt(16))  # \u8f93\u51fa4.0<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u5bfc\u5165\u6240\u6709\u5185\u5bb9<\/strong><\/li>\n<\/ol>\n<p><p>\u4f7f\u7528\u661f\u53f7(*)\u53ef\u4ee5\u5bfc\u5165\u6a21\u5757\u7684\u6240\u6709\u5185\u5bb9\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from math import *<\/p>\n<p>print(sin(0))  # \u8f93\u51fa0.0<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u6ce8\u610f\uff1a<\/strong>\u4f7f\u7528\u661f\u53f7\u5bfc\u5165\u867d\u7136\u65b9\u4fbf\uff0c\u4f46\u53ef\u80fd\u5bfc\u81f4\u547d\u540d\u51b2\u7a81\uff0c\u4e0d\u63a8\u8350\u5728\u5927\u578b\u9879\u76ee\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u5229\u7528SYS\u6a21\u5757\u6dfb\u52a0\u8def\u5f84<\/p>\n<\/p>\n<p><p>\u6709\u65f6\u9700\u8981\u5bfc\u5165\u7684\u6a21\u5757\u4e0d\u5728Python\u7684\u9ed8\u8ba4\u641c\u7d22\u8def\u5f84\u4e2d\uff0c\u53ef\u4ee5\u5229\u7528sys\u6a21\u5757\u52a8\u6001\u6dfb\u52a0\u8def\u5f84\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u6dfb\u52a0\u641c\u7d22\u8def\u5f84<\/strong><\/li>\n<\/ol>\n<p><p>\u5047\u8bbe\u6709\u4e00\u4e2a\u6a21\u5757\u4f4d\u4e8e\u975e\u9ed8\u8ba4\u8def\u5f84\uff0c\u53ef\u4ee5\u901a\u8fc7sys.path.append()\u65b9\u6cd5\u6dfb\u52a0\u8be5\u8def\u5f84\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sys<\/p>\n<p>sys.path.append(&#39;\/path\/to\/your\/module&#39;)<\/p>\n<p>import yourmodule<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u4f7f\u7528os\u6a21\u5757\u7ed3\u5408sys\u6a21\u5757<\/strong><\/li>\n<\/ol>\n<p><p>\u4e5f\u53ef\u4ee5\u7ed3\u5408os\u6a21\u5757\u52a8\u6001\u83b7\u53d6\u8def\u5f84\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sys<\/p>\n<p>import os<\/p>\n<p>current_dir = os.path.dirname(__file__)<\/p>\n<p>sys.path.append(current_dir + &quot;\/additional_modules&quot;)<\/p>\n<p>import yourmodule<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u56db\u3001\u4f7f\u7528IMPORTLIB\u6a21\u5757<\/p>\n<\/p>\n<p><p>importlib\u6a21\u5757\u63d0\u4f9b\u4e86\u66f4\u7075\u6d3b\u7684\u5bfc\u5165\u673a\u5236\uff0c\u9002\u7528\u4e8e\u9700\u8981\u52a8\u6001\u5bfc\u5165\u6a21\u5757\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u52a8\u6001\u5bfc\u5165\u6a21\u5757<\/strong><\/li>\n<\/ol>\n<p><p>importlib.import_module()\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u6a21\u5757\u540d\u52a8\u6001\u5bfc\u5165\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import importlib<\/p>\n<p>module_name = &quot;math&quot;<\/p>\n<p>math_module = importlib.import_module(module_name)<\/p>\n<p>print(math_module.sqrt(16))  # \u8f93\u51fa4.0<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u91cd\u65b0\u52a0\u8f7d\u6a21\u5757<\/strong><\/li>\n<\/ol>\n<p><p>\u5982\u679c\u9700\u8981\u5728\u8fd0\u884c\u65f6\u91cd\u65b0\u52a0\u8f7d\u6a21\u5757\uff0c\u53ef\u4ee5\u4f7f\u7528importlib.reload()\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import importlib<\/p>\n<p>import mymodule<\/p>\n<h2><strong>\u4fee\u6539mymodule\u540e\u91cd\u65b0\u52a0\u8f7d<\/strong><\/h2>\n<p>importlib.reload(mymodule)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e94\u3001\u603b\u7ed3\u4e0e\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n<ol>\n<li><strong>\u6a21\u5757\u641c\u7d22\u8def\u5f84<\/strong><\/li>\n<\/ol>\n<p><p>Python\u5728\u5bfc\u5165\u6a21\u5757\u65f6\uff0c\u4f1a\u6309\u7167\u4ee5\u4e0b\u987a\u5e8f\u641c\u7d22\uff1a\u5f53\u524d\u76ee\u5f55\u3001PYTHONPATH\u73af\u5883\u53d8\u91cf\u3001\u6807\u51c6\u5e93\u76ee\u5f55\u3002\u53ef\u4ee5\u901a\u8fc7sys.path\u67e5\u770b\u5f53\u524d\u7684\u641c\u7d22\u8def\u5f84\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u547d\u540d\u51b2\u7a81<\/strong><\/li>\n<\/ol>\n<p><p>\u5728\u5bfc\u5165\u6a21\u5757\u65f6\uff0c\u5e94\u6ce8\u610f\u907f\u514d\u547d\u540d\u51b2\u7a81\u3002\u4f7f\u7528from&#8230;import\u5bfc\u5165\u65f6\uff0c\u5c3d\u91cf\u6307\u5b9a\u522b\u540d\u4ee5\u907f\u514d\u51b2\u7a81\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from math import sqrt as math_sqrt<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"3\">\n<li><strong>\u6a21\u5757\u7684\u5c01\u88c5\u6027<\/strong><\/li>\n<\/ol>\n<p><p>\u5c3d\u91cf\u5c06\u6a21\u5757\u7684\u5b9e\u73b0\u7ec6\u8282\u5c01\u88c5\u5728\u6a21\u5757\u5185\u90e8\uff0c\u53ea\u66b4\u9732\u9700\u8981\u4f7f\u7528\u7684\u63a5\u53e3\u548c\u529f\u80fd\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e0b\u5212\u7ebf\u524d\u7f00\u6765\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def _internal_function():<\/p>\n<p>    pass<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"4\">\n<li><strong>\u6a21\u5757\u7684\u7ed3\u6784\u5316<\/strong><\/li>\n<\/ol>\n<p><p>\u5bf9\u4e8e\u5927\u578b\u9879\u76ee\uff0c\u5e94\u5c06\u4ee3\u7801\u7ec4\u7ec7\u6210\u591a\u4e2a\u6a21\u5757\u548c\u5305\uff0c\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u91cd\u7528\u6027\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u65b9\u6cd5\u548c\u6ce8\u610f\u4e8b\u9879\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5728Python\u4e2d\u5bfc\u5165\u548c\u7ba1\u7406\u6a21\u5757\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u7ec4\u7ec7\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u5bfc\u5165\u65b9\u5f0f\u53ef\u4ee5\u7b80\u5316\u4ee3\u7801\u7ed3\u6784\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u5bfc\u5165\u672c\u5730\u6587\u4ef6\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u5bfc\u5165\u672c\u5730\u6587\u4ef6\u901a\u5e38\u4f7f\u7528\u5185\u7f6e\u7684<code>open()<\/code>\u51fd\u6570\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9a\u6587\u4ef6\u8def\u5f84\u548c\u6a21\u5f0f\uff08\u5982\u8bfb\u53d6\u3001\u5199\u5165\u7b49\uff09\u6765\u6253\u5f00\u6587\u4ef6\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">with open(&#39;\u6587\u4ef6\u8def\u5f84\/\u6587\u4ef6\u540d.txt&#39;, &#39;r&#39;) as file:\n    \u5185\u5bb9 = file.read()\nprint(\u5185\u5bb9)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u5b89\u5168\u5730\u6253\u5f00\u6587\u4ef6\u5e76\u5728\u4f7f\u7528\u5b8c\u6bd5\u540e\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n<p><strong>Python\u652f\u6301\u5bfc\u5165\u54ea\u4e9b\u7c7b\u578b\u7684\u6587\u4ef6\uff1f<\/strong><br \/>Python\u80fd\u591f\u5bfc\u5165\u591a\u79cd\u7c7b\u578b\u7684\u6587\u4ef6\uff0c\u5305\u62ec\u6587\u672c\u6587\u4ef6\uff08.txt\uff09\u3001CSV\u6587\u4ef6\uff08.csv\uff09\u3001JSON\u6587\u4ef6\uff08.json\uff09\u3001Excel\u6587\u4ef6\uff08.xlsx\uff09\u7b49\u3002\u6bcf\u79cd\u6587\u4ef6\u7c7b\u578b\u90fd\u53ef\u4ee5\u901a\u8fc7\u76f8\u5e94\u7684\u5e93\u8fdb\u884c\u5904\u7406\uff0c\u4f8b\u5982<code>pandas<\/code>\u5e93\u5904\u7406Excel\u548cCSV\u6587\u4ef6\uff0c<code>json<\/code>\u5e93\u5904\u7406JSON\u6587\u4ef6\u3002<\/p>\n<p><strong>\u5982\u4f55\u5904\u7406\u5bfc\u5165\u6587\u4ef6\u65f6\u53ef\u80fd\u51fa\u73b0\u7684\u9519\u8bef\uff1f<\/strong><br \/>\u5728\u5bfc\u5165\u6587\u4ef6\u65f6\uff0c\u5e38\u89c1\u7684\u9519\u8bef\u5305\u62ec\u6587\u4ef6\u4e0d\u5b58\u5728\u3001\u6587\u4ef6\u8def\u5f84\u9519\u8bef\u6216\u6743\u9650\u95ee\u9898\u3002\u4e3a\u907f\u514d\u8fd9\u4e9b\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528<code>try...except<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u5f02\u5e38\uff0c\u786e\u4fdd\u7a0b\u5e8f\u5728\u9047\u5230\u9519\u8bef\u65f6\u4e0d\u4f1a\u5d29\u6e83\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">try:\n    with open(&#39;\u6587\u4ef6\u8def\u5f84\/\u6587\u4ef6\u540d.txt&#39;, &#39;r&#39;) as file:\n        \u5185\u5bb9 = file.read()\nexcept FileNotFoundError:\n    print(&quot;\u6587\u4ef6\u672a\u627e\u5230\uff0c\u8bf7\u68c0\u67e5\u6587\u4ef6\u8def\u5f84\u3002&quot;)\nexcept IOError:\n    print(&quot;\u8bfb\u53d6\u6587\u4ef6\u65f6\u51fa\u9519\u3002&quot;)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u589e\u5f3a\u4ee3\u7801\u7684\u5065\u58ee\u6027\uff0c\u63d0\u4f9b\u66f4\u597d\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5bfc\u5165\u6587\u4ef6\u7684\u5e38\u89c1\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528import\u8bed\u53e5\u3001\u4f7f\u7528from&#8230;import\u8bed\u53e5\u3001\u5229\u7528s [&hellip;]","protected":false},"author":3,"featured_media":996614,"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\/996611"}],"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=996611"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/996611\/revisions"}],"predecessor-version":[{"id":996615,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/996611\/revisions\/996615"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/996614"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=996611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=996611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=996611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}