{"id":25997,"date":"2023-04-18T16:41:26","date_gmt":"2023-11-10T12:10:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8ubuntu20-04%e4%b8%ad%e7%9a%84shebang-3\/"},"modified":"2025-08-11T17:56:21","modified_gmt":"2025-08-11T09:56:21","slug":"%e5%9c%a8ubuntu20-04%e4%b8%ad%e7%9a%84shebang-3","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8ubuntu20-04%e4%b8%ad%e7%9a%84shebang-3\/","title":{"rendered":"\u5728Ubuntu20.04\u4e2d\u7684shebang"},"content":{"rendered":"<h1>\u5728Ubuntu20.04\u4e2d\u4f7f\u7528Python\u3002<\/h1>\n<p>Ubuntu 20.04\u53d1\u5e03\u4e86\u3002\u6211\u7acb\u523b\u73a9\u4e86\u4e00\u4e0b\u5e76\u8fdb\u884c\u4e86\u8c03\u67e5\uff0c\u53d1\u73b0\u6807\u51c6\u5b89\u88c5\u4e2d\u5df2\u7ecf\u5305\u542b\u4e86Python3.8\u3002\u4f46\u662f\uff0c\u4f7f\u7528python\u5173\u952e\u5b57\u65e0\u6cd5\u542f\u52a8\uff0c\u9700\u8981\u4f7f\u7528python3\u6765\u542f\u52a8\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\u8fd9\u4e0d\u662f\u95ee\u9898\uff0c\u4f46\u662f\u5f53\u60f3\u8981\u4f7f\u7528shebang\u529f\u80fd\u5c06\u5176\u4f5c\u4e3a\u6267\u884c\u6587\u4ef6\u8fd0\u884c\u65f6\u5c31\u4f1a\u9047\u5230\u56f0\u96be\u3002\u73b0\u5728\u8be5\u600e\u4e48\u529e\u5462\uff1f\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u8fdb\u884c\u4e86\u4e00\u4e9b\u8c03\u67e5\u3002<\/p>\n<h1>&#8220;shebang&#8221;\u7684\u5199\u6cd5\u793a\u4f8b<\/h1>\n<p>\u6211\u5728\u8fdb\u884c\u4e86\u4e00\u4e9b\u641c\u7d22\u4e4b\u540e\uff0c\u53d1\u73b0\u5728Perl\u3001Python\u548cRuby\u811a\u672c\u4e2d\uff0c\u6709\u5173\u6b63\u786eshebang\u5199\u6cd5\u7684\u4fe1\u606f\u3002\u4f3c\u4e4e\u6709\u4e00\u79cd\u65b9\u6cd5\u662f\u901a\u8fc7\u542f\u52a8\/bin\/sh\uff0c\u5e76\u4f7f\u7528exec\u547d\u4ee4\u6765\u542f\u52a8python\u3002\u6211\u7a0d\u5fae\u505a\u4e86\u4e00\u4e9b\u4fee\u6539\u5c1d\u8bd5\u3002<\/p>\n<pre class=\"post-pre\"><code>\\<span class=\"c1\">#!\/bin\/sh\r\n<\/span><span class=\"s\">\"\"\":\" .\r\n\r\nif [ -x python ] ; then\r\n    exec python \"$0\" ${1+\"$@\"}\r\nelse\r\n    exec python3 \"$0\" ${1+\"$@\"}\r\nfi\r\n\r\n\"\"\"<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">sys<\/span>\r\n\r\n<span class=\"n\">__doc__<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\"\"\r\nThe above defines the script's __doc__ string. You can fix it by like this.\"\"\"<\/span>\r\n\r\n<span class=\"k\">def<\/span> <span class=\"nf\">main<\/span><span class=\"p\">():<\/span>\r\n    <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"s\">'exec ok'<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">v<\/span> <span class=\"ow\">in<\/span> <span class=\"n\">sys<\/span><span class=\"p\">.<\/span><span class=\"n\">argv<\/span><span class=\"p\">:<\/span>\r\n        <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">v<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">if<\/span> <span class=\"n\">__name__<\/span> <span class=\"o\">==<\/span> <span class=\"s\">'__main__'<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"n\">main<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<p>\u603b\u4e4b\uff0c\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u65e0\u8bba\u662f\u5728Python\u8fd8\u662fPython3\u4e0a\uff0c\u90fd\u53ef\u4ee5\u542f\u52a8\u4e86\u3002<br \/>\n\u2026\u2026\u4f46\u662f\uff0c\u6211\u4e0d\u592a\u6e05\u695a\u662f\u5426\u6709\u5fc5\u8981\u8fd9\u6837\u505a(^^\u309e<\/p>\n<h1>CentOS8 &#8211; \u8fd9\u662f\u4e00\u4e2a\u9009\u9879<\/h1>\n<p>CentOS8\u6ca1\u6709\u9884\u88c5Python\/Python3\uff0c\u6240\u4ee5\u65e0\u6cd5\u542f\u52a8\u3002<br \/>\nYum\/DNF\u4f3c\u4e4e\u4f9d\u8d56\u4e8eplatform-python\u6765\u542f\u52a8\uff0c\u4f46\u5982\u679c\u8981\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u6216\u8bb8\u5e94\u8be5\u8003\u8651\u4f7f\u7528\u865a\u62df\u73af\u5883\uff08\u5982venv\uff09\u6765\u8fd0\u884c\uff0c\u4e0d\u77e5\u9053\u8fd9\u6837\u60f3\u662f\u5426\u6b63\u786e\u3002<\/p>\n<div>\n<p>\u5982\u679c\u5b89\u88c5\u4e86python-is-python3\u8f6f\u4ef6\u5305\uff0c\u5b83\u5c31\u4f1a\u542f\u52a8\u3002\u21a9<\/p>\n<p>\u5c31\u662f\u6700\u524d\u9762\u7684\u90a3\u4e00\u884c#!\/usr\/bin\/env python\u3002\u21a9<\/p>\n<p>\u539f\u672c\u662f\u5904\u7406\u6ca1\u6709\/usr\/bin\/env\u7684\u60c5\u51b5\u3002\u21a9<\/p>\n<p>\u5934\u90e8\u7684&#8221;&#8221;&#8221;:&#8221;\u6709\u4ec0\u4e48\u610f\u601d\u5462\uff1f\u21a9<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Ubuntu20.04\u4e2d\u4f7f\u7528Python\u3002 Ubuntu 20.04\u53d1\u5e03\u4e86\u3002\u6211\u7acb\u523b\u73a9\u4e86\u4e00\u4e0b\u5e76\u8fdb\u884c\u4e86\u8c03\u67e5\uff0c\u53d1\u73b0 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-25997","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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