{"id":3076,"date":"2025-05-31T16:12:45","date_gmt":"2025-06-04T08:58:45","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3076"},"modified":"2025-06-04T16:12:45","modified_gmt":"2025-06-04T08:58:45","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84bool%e5%87%bd%e6%95%b8-2","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84bool%e5%87%bd%e6%95%b8-2\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u7684 bool() \u51fd\u6578\uff1a2025 \u6700\u65b0\u8a9e\u6cd5\u8207\u4f7f\u7528\u7bc4\u4f8b"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Python, bool(), \u5e03\u6797\u503c, Python \u7a0b\u5f0f\u6559\u5b78\"><\/p>\n<h1>\u6df1\u5165\u4e86\u89e3 Python \u7684 bool() \u51fd\u6578<\/h1>\n<p>Python \u7684 `bool()` \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u5167\u5efa\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u5c07\u4efb\u4f55\u7269\u4ef6\u8f49\u63db\u6210\u5e03\u6797\u503c\uff08`True` \u6216 `False`\uff09\u3002\u5728 Python \u7a0b\u5f0f\u4e2d\uff0c\u9019\u500b\u51fd\u6578\u4e0d\u50c5\u7528\u65bc\u5224\u65b7\u7269\u4ef6\u7684\u771f\u5047\uff0c\u9084\u5728\u689d\u4ef6\u8a9e\u53e5\u4e2d\u626e\u6f14\u8457\u95dc\u9375\u89d2\u8272\u3002\u4ee5\u4e0b\u5c07\u4ecb\u7d39 `bool()` \u51fd\u6578\u7684\u6700\u65b0\u7528\u6cd5\u3001\u5be6\u4f5c\u7bc4\u4f8b\u53ca\u5176\u5728\u5be6\u969b\u958b\u767c\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2>bool() \u51fd\u6578\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<p>`bool()` \u51fd\u6578\u53ef\u4ee5\u63a5\u53d7\u4efb\u4f55\u7269\u4ef6\u4f5c\u70ba\u53c3\u6578\uff0c\u6839\u64da\u7269\u4ef6\u7684\u5167\u5bb9\u8fd4\u56de\u76f8\u5c0d\u61c9\u7684\u5e03\u6797\u503c\u3002\u57fa\u672c\u898f\u5247\u5982\u4e0b\uff1a<\/p>\n<p>&#8211; \u5982\u679c\u53c3\u6578\u503c\u70ba `0`\u3001\u7a7a\u5b57\u4e32 `&#8221;&#8221;`\u3001\u7a7a\u5217\u8868 `[]`\u3001\u7a7a\u5b57\u5178 `{}`\u3001\u7a7a\u96c6\u5408 `set()` \u6216 `None`\uff0c\u5247\u8fd4\u56de `False`\u3002<br \/>\n&#8211; \u5728\u5176\u4ed6\u60c5\u6cc1\u4e0b\uff0c\u5247\u8fd4\u56de `True`\u3002<\/p>\n<h2>bool() \u51fd\u6578\u7684\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5e6b\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3 `bool()` \u51fd\u6578\u7684\u904b\u4f5c\uff1a<\/p>\n<pre class=\"brush: python\">\n# \u5c07\u6574\u65780\u8f49\u63db\u70ba\u5e03\u6797\u503c\nx = 0\nprint(bool(x))  # \u8f38\u51fa: False\n\n# \u5c07\u7a7a\u5b57\u4e32\u8f49\u63db\u70ba\u5e03\u6797\u503c\ny = \"\"\nprint(bool(y))  # \u8f38\u51fa: False\n\n# \u5c07\u975e\u7a7a\u5b57\u4e32\u8f49\u63db\u70ba\u5e03\u6797\u503c\nz = \"Hello\"\nprint(bool(z))  # \u8f38\u51fa: True\n\n# \u5c07\u5217\u8868\u8f49\u63db\u70ba\u5e03\u6797\u503c\na = []\nprint(bool(a))  # \u8f38\u51fa: False\n\n# \u5c07\u975e\u7a7a\u5217\u8868\u8f49\u63db\u70ba\u5e03\u6797\u503c\nb = [1, 2, 3]\nprint(bool(b))  # \u8f38\u51fa: True\n\n# \u5c07None\u8f49\u63db\u70ba\u5e03\u6797\u503c\nc = None\nprint(bool(c))  # \u8f38\u51fa: False\n<\/pre>\n<p>\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\uff0c\u4f60\u5c07\u6703\u5f97\u5230\u4ee5\u4e0b\u7d50\u679c\uff1a<\/p>\n<pre class=\"brush: python\">\nFalse\nFalse\nTrue\nFalse\nTrue\nFalse\n<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u53ea\u6709\u5728\u975e\u7a7a\u7684\u60c5\u6cc1\u4e0b\uff0c`bool()` \u51fd\u6578\u624d\u6703\u8fd4\u56de `True`\u3002<\/p>\n<h2>bool() \u51fd\u6578\u7684\u61c9\u7528<\/h2>\n<p>`bool()` \u51fd\u6578\u901a\u5e38\u7528\u65bc\u689d\u4ef6\u5224\u65b7\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u5224\u65b7\u6578\u5b57\u662f\u5426\u70ba\u5076\u6578\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: python\">\n# \u5b9a\u7fa9\u4e00\u500b\u51fd\u6578\uff0c\u5224\u65b7\u4e00\u500b\u6578\u5b57\u662f\u5426\u70ba\u5076\u6578\ndef is_even(x):\n    return bool(x % 2 == 0)\n\n# \u6e2c\u8a66\u51fd\u6578\nprint(is_even(4))  # \u8f38\u51fa: True\nprint(is_even(5))  # \u8f38\u51fa: False\n<\/pre>\n<p>\u5f9e\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u7576\u6578\u5b57 `4` \u88ab\u50b3\u5165\u6642\uff0c\u51fd\u6578\u8fd4\u56de `True`\uff0c\u8868\u793a\u8a72\u6578\u5b57\u662f\u5076\u6578\uff1b\u800c\u6578\u5b57 `5` \u5247\u8fd4\u56de `False`\uff0c\u8868\u793a\u8a72\u6578\u5b57\u662f\u5947\u6578\u3002<\/p>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u4f7f\u7528 `bool()` \u51fd\u6578\u6642\uff0c\u5e38\u898b\u7684\u932f\u8aa4\u53ef\u80fd\u4f86\u81ea\u65bc\u5c0d\u7269\u4ef6\u985e\u578b\u7684\u8aa4\u89e3\u3002\u4f8b\u5982\uff0c\u7576\u4f60\u8a66\u5716\u5c07\u4e00\u500b\u81ea\u5b9a\u7fa9\u7269\u4ef6\u50b3\u905e\u7d66 `bool()` \u51fd\u6578\u6642\uff0c\u8a72\u7269\u4ef6\u7684 `__bool__` \u65b9\u6cd5\u6216 `__len__` \u65b9\u6cd5\u6703\u5f71\u97ff\u8fd4\u56de\u503c\u3002\u5982\u679c\u4f60\u5e0c\u671b\u81ea\u5b9a\u7fa9\u7269\u4ef6\u5728\u5e03\u6797\u4e0a\u4e0b\u6587\u4e2d\u8868\u73fe\u5f97\u5982\u540c\u67d0\u4e00\u7279\u5b9a\u503c\uff0c\u8acb\u78ba\u4fdd\u6b63\u78ba\u5be6\u73fe\u9019\u4e9b\u65b9\u6cd5\u3002<\/p>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>`bool()` \u51fd\u6578\u5728 Python \u4e2d\u7684\u61c9\u7528\u975e\u5e38\u5ee3\u6cdb\uff0c\u5c24\u5176\u662f\u5728\u689d\u4ef6\u8a9e\u53e5\u3001\u5faa\u74b0\u63a7\u5236\u53ca\u6578\u64da\u9a57\u8b49\u7b49\u60c5\u5883\u4e2d\u3002\u4f60\u53ef\u4ee5\u5229\u7528\u9019\u500b\u51fd\u6578\u4f86\u63d0\u5347\u4f60\u7a0b\u5f0f\u7684\u5065\u58ef\u6027\u548c\u53ef\u8b80\u6027\u3002<\/p>\n<p>\u6b32\u4e86\u89e3\u66f4\u591a Python \u76f8\u95dc\u7684\u6559\u5b78\u5167\u5bb9\uff0c\u8acb\u53c3\u8003 [vocus.cc](https:\/\/vocus.cc) \u6216 [miner.tw](https:\/\/miner.tw) \u7684\u512a\u8cea\u6587\u7ae0\u3002<\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<p>**Q1: `bool()` \u51fd\u6578\u662f\u5426\u53ef\u4ee5\u7528\u65bc\u81ea\u5b9a\u7fa9\u985e\u5225\uff1f**<br \/>\nA1: \u662f\u7684\uff0c\u4f60\u53ef\u4ee5\u5728\u81ea\u5b9a\u7fa9\u985e\u5225\u4e2d\u5be6\u73fe `__bool__` \u6216 `__len__` \u65b9\u6cd5\u4f86\u63a7\u5236 `bool()` \u51fd\u6578\u7684\u8fd4\u56de\u503c\u3002<\/p>\n<p>**Q2: `bool()` \u51fd\u6578\u7684\u8fd4\u56de\u503c\u662f\u5426\u6703\u5f71\u97ff\u7a0b\u5f0f\u7684\u57f7\u884c\uff1f**<br \/>\nA2: \u662f\u7684\uff0c`bool()` \u7684\u8fd4\u56de\u503c\u5728\u689d\u4ef6\u8a9e\u53e5\u4e2d\u6703\u6c7a\u5b9a\u7a0b\u5f0f\u7684\u57f7\u884c\u8def\u5f91\uff0c\u56e0\u6b64\u6b63\u78ba\u7406\u89e3\u5176\u7528\u6cd5\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>**Q3: \u5982\u4f55\u4f7f\u7528 `bool()` \u51fd\u6578\u9032\u884c\u8cc7\u6599\u9a57\u8b49\uff1f**<br \/>\nA3: \u4f60\u53ef\u4ee5\u5c07\u7528\u6236\u8f38\u5165\u7684\u8cc7\u6599\u50b3\u905e\u7d66 `bool()` \u51fd\u6578\u4f86\u6aa2\u67e5\u5176\u6709\u6548\u6027\uff0c\u4e26\u6839\u64da\u8fd4\u56de\u503c\u9032\u884c\u5f8c\u7e8c\u64cd\u4f5c\u3002<\/p>\n<p>\u7e3d\u7d50\uff1a`bool()` \u51fd\u6578\u5728 Python \u4e2d\u662f\u4e00\u500b\u57fa\u790e\u800c\u91cd\u8981\u7684\u5de5\u5177\uff0c\u7406\u89e3\u5176\u7528\u6cd5\u80fd\u5920\u5e6b\u52a9\u4f60\u7de8\u5beb\u51fa\u66f4\u5177\u6548\u7387\u4e14\u6613\u65bc\u7dad\u8b77\u7684\u7a0b\u5f0f\u78bc\u3002<br \/>\n&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Python\u4e2d\u7684bool()\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u5c07\u4efb\u4f55\u503c\u8f49\u63db\u70ba\u5e03\u6797\u503c\uff0c\u4e26\u63d0\u4f9b\u6709\u95dcPython\u4e2d\u7684\u5e03\u6797\u503c\u7684\u66f4\u591a\u8a73\u7d30\u4fe1\u606f\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u8a73\u7d30\u4ecb\u7d39bool()\u51fd\u6578\u7684\u7528\u6cd5\uff0c\u4ee5\u53ca\u5b83\u5982\u4f55\u5728Python\u4e2d\u61c9\u7528\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-NC","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3076"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3076\/revisions"}],"predecessor-version":[{"id":12940,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3076\/revisions\/12940"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}