{"id":992641,"date":"2024-12-27T08:39:01","date_gmt":"2024-12-27T00:39:01","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/992641.html"},"modified":"2024-12-27T08:39:55","modified_gmt":"2024-12-27T00:39:55","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%adif%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/992641.html","title":{"rendered":"python\u5982\u4f55\u5224\u65adif\u8bed\u53e5"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25070402\/15378b76-ff48-4f13-9e07-9a85781c55e3.webp\" alt=\"python\u5982\u4f55\u5224\u65adif\u8bed\u53e5\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u5224\u65adif\u8bed\u53e5\u7684\u4e3b\u8981\u65b9\u6cd5\u662f\u5229\u7528\u6761\u4ef6\u8868\u8fbe\u5f0f\u6765\u8bc4\u4f30\u67d0\u4e2a\u6761\u4ef6\u662f\u5426\u4e3a\u771f\u3002\u5982\u679c\u6761\u4ef6\u4e3a\u771f\uff0c\u5219\u6267\u884c\u4e0eif\u8bed\u53e5\u76f8\u5173\u7684\u4ee3\u7801\u5757\uff0c\u5426\u5219\u53ef\u4ee5\u9009\u62e9\u6267\u884celse\u8bed\u53e5\u540e\u7684\u4ee3\u7801\u5757\u3002if\u8bed\u53e5\u3001elif\u8bed\u53e5\u3001else\u8bed\u53e5\u662fPython\u4e2d\u5e38\u7528\u7684\u5224\u65ad\u7ed3\u6784\u3002<\/strong> \u5176\u4e2d\uff0cif\u8bed\u53e5\u7528\u4e8e\u8bc4\u4f30\u4e00\u4e2a\u6761\u4ef6\u662f\u5426\u4e3a\u771f\uff1belif\u8bed\u53e5\u53ef\u4ee5\u7528\u4e8e\u5728\u521d\u59cbif\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\u8bc4\u4f30\u5176\u4ed6\u6761\u4ef6\uff1belse\u8bed\u53e5\u7528\u4e8e\u5904\u7406\u6240\u6709\u524d\u9762\u6761\u4ef6\u90fd\u4e0d\u6ee1\u8db3\u7684\u60c5\u51b5\u3002\u901a\u8fc7\u8fd9\u4e9b\u8bed\u53e5\uff0c\u7a0b\u5e8f\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u6761\u4ef6\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><p>\u5177\u4f53\u6765\u8bf4\uff0cif\u8bed\u53e5\u7684\u5224\u65ad\u4f9d\u8d56\u4e8e\u5e03\u5c14\u8868\u8fbe\u5f0f\u3002\u5e03\u5c14\u8868\u8fbe\u5f0f\u662f\u4efb\u4f55\u80fd\u591f\u88ab\u8bc4\u4f30\u4e3aTrue\u6216False\u7684\u8868\u8fbe\u5f0f\u3002\u5728Python\u4e2d\uff0c\u8bb8\u591a\u7c7b\u578b\u7684\u5bf9\u8c61\u90fd\u53ef\u4ee5\u76f4\u63a5\u7528\u4e8e\u5e03\u5c14\u8868\u8fbe\u5f0f\u4e2d\uff0c\u6bd4\u5982\u6570\u5b57\u3001\u5b57\u7b26\u4e32\u3001\u5217\u8868\u7b49\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u975e\u96f6\u6570\u5b57\u3001\u975e\u7a7a\u5b57\u7b26\u4e32\u3001\u975e\u7a7a\u5217\u8868\u7b49\u90fd\u88ab\u89c6\u4e3aTrue\uff0c\u800c\u96f6\u3001\u7a7a\u5b57\u7b26\u4e32\u3001\u7a7a\u5217\u8868\u7b49\u5219\u88ab\u89c6\u4e3aFalse\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u7ec4\u5408\u548c\u5d4c\u5957\u591a\u4e2a\u6761\u4ef6\u8868\u8fbe\u5f0f\u6765\u5b9e\u73b0\u590d\u6742\u7684\u6761\u4ef6\u903b\u8f91\u3002<\/p>\n<\/p>\n<p><p>\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecdPython\u4e2d\u5224\u65adif\u8bed\u53e5\u7684\u5404\u79cd\u65b9\u6cd5\u53ca\u5176\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001IF\u8bed\u53e5\u7684\u57fa\u672c\u7528\u6cd5<\/h3>\n<\/p>\n<p><p>if\u8bed\u53e5\u662fPython\u4e2d\u6700\u57fa\u672c\u7684\u6761\u4ef6\u5224\u65ad\u7ed3\u6784\u3002\u5b83\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">if condition:<\/p>\n<p>    # \u6267\u884c\u4ee3\u7801\u5757<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>1. \u57fa\u672c\u7ed3\u6784\u548c\u793a\u4f8b<\/h4>\n<\/p>\n<p><p>\u5728if\u8bed\u53e5\u4e2d\uff0c<code>condition<\/code>\u662f\u4e00\u4e2a\u5e03\u5c14\u8868\u8fbe\u5f0f\u3002\u5f53<code>condition<\/code>\u88ab\u8bc4\u4f30\u4e3aTrue\u65f6\uff0cPython\u5c06\u6267\u884c\u7f29\u8fdb\u7684\u4ee3\u7801\u5757\u3002\u5426\u5219\uff0c\u4ee3\u7801\u5757\u5c06\u88ab\u8df3\u8fc7\u3002<\/p>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">age = 18<\/p>\n<p>if age &gt;= 18:<\/p>\n<p>    print(&quot;You are eligible to vote.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u53d8\u91cf<code>age<\/code>\u7684\u503c\u662f18\u3002if\u8bed\u53e5\u68c0\u67e5<code>age<\/code>\u662f\u5426\u5927\u4e8e\u6216\u7b49\u4e8e18\u3002\u5982\u679c\u6761\u4ef6\u4e3a\u771f\uff0c\u7a0b\u5e8f\u5c06\u8f93\u51fa&quot;You are eligible to vote.&quot;\u3002<\/p>\n<\/p>\n<p><h4>2. \u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/h4>\n<\/p>\n<p><p>\u6bd4\u8f83\u8fd0\u7b97\u7b26\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\u3002\u5e38\u7528\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u5305\u62ec\uff1a<\/p>\n<\/p>\n<ul>\n<li><code>==<\/code>\uff1a\u7b49\u4e8e<\/li>\n<li><code>!=<\/code>\uff1a\u4e0d\u7b49\u4e8e<\/li>\n<li><code>&gt;<\/code>\uff1a\u5927\u4e8e<\/li>\n<li><code>&lt;<\/code>\uff1a\u5c0f\u4e8e<\/li>\n<li><code>&gt;=<\/code>\uff1a\u5927\u4e8e\u6216\u7b49\u4e8e<\/li>\n<li><code>&lt;=<\/code>\uff1a\u5c0f\u4e8e\u6216\u7b49\u4e8e<\/li>\n<\/ul>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">number = 10<\/p>\n<p>if number &gt; 5:<\/p>\n<p>    print(&quot;The number is greater than 5.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001ELSE\u8bed\u53e5<\/h3>\n<\/p>\n<p><p>else\u8bed\u53e5\u7528\u4e8e\u5728if\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\u6267\u884c\u4ee3\u7801\u5757\u3002else\u8bed\u53e5\u662f\u53ef\u9009\u7684\u3002<\/p>\n<\/p>\n<p><h4>1. \u57fa\u672c\u7ed3\u6784\u548c\u793a\u4f8b<\/h4>\n<\/p>\n<p><p>else\u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">if condition:<\/p>\n<p>    # \u6267\u884c\u4ee3\u7801\u5757<\/p>\n<p>else:<\/p>\n<p>    # \u6267\u884c\u5176\u4ed6\u4ee3\u7801\u5757<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">age = 16<\/p>\n<p>if age &gt;= 18:<\/p>\n<p>    print(&quot;You are eligible to vote.&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;You are not eligible to vote.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u5982\u679c<code>age<\/code>\u5c0f\u4e8e18\uff0c\u7a0b\u5e8f\u5c06\u8f93\u51fa&quot;You are not eligible to vote.&quot;\u3002<\/p>\n<\/p>\n<p><h4>2. \u7ed3\u5408if\u548celse\u4f7f\u7528<\/h4>\n<\/p>\n<p><p>\u901a\u8fc7\u7ed3\u5408if\u548celse\u8bed\u53e5\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u5b9e\u73b0\u7b80\u5355\u7684\u4e8c\u9009\u4e00\u903b\u8f91\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001ELIF\u8bed\u53e5<\/h3>\n<\/p>\n<p><p>elif\u8bed\u53e5\u7528\u4e8e\u5728\u521d\u59cbif\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\uff0c\u68c0\u67e5\u5176\u4ed6\u6761\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2aelif\u8bed\u53e5\u6765\u68c0\u67e5\u591a\u4e2a\u6761\u4ef6\u3002<\/p>\n<\/p>\n<p><h4>1. \u57fa\u672c\u7ed3\u6784\u548c\u793a\u4f8b<\/h4>\n<\/p>\n<p><p>elif\u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">if condition1:<\/p>\n<p>    # \u6267\u884c\u4ee3\u7801\u5757<\/p>\n<p>elif condition2:<\/p>\n<p>    # \u6267\u884c\u5176\u4ed6\u4ee3\u7801\u5757<\/p>\n<p>else:<\/p>\n<p>    # \u6267\u884c\u5176\u4ed6\u4ee3\u7801\u5757<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">score = 85<\/p>\n<p>if score &gt;= 90:<\/p>\n<p>    print(&quot;Grade: A&quot;)<\/p>\n<p>elif score &gt;= 80:<\/p>\n<p>    print(&quot;Grade: B&quot;)<\/p>\n<p>elif score &gt;= 70:<\/p>\n<p>    print(&quot;Grade: C&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;Grade: F&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u7a0b\u5e8f\u6839\u636e<code>score<\/code>\u7684\u503c\u8f93\u51fa\u4e0d\u540c\u7684\u7b49\u7ea7\u3002<\/p>\n<\/p>\n<p><h4>2. \u4f7f\u7528\u591a\u4e2aelif\u8bed\u53e5<\/h4>\n<\/p>\n<p><p>\u901a\u8fc7\u4f7f\u7528\u591a\u4e2aelif\u8bed\u53e5\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u5b9e\u73b0\u591a\u9009\u4e00\u903b\u8f91\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u5d4c\u5957IF\u8bed\u53e5<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u4f60\u53ef\u4ee5\u5728if\u8bed\u53e5\u4e2d\u5d4c\u5957\u5176\u4ed6if\u8bed\u53e5\uff0c\u4ee5\u5b9e\u73b0\u66f4\u52a0\u590d\u6742\u7684\u6761\u4ef6\u5224\u65ad\u3002<\/p>\n<\/p>\n<p><h4>1. \u57fa\u672c\u7ed3\u6784\u548c\u793a\u4f8b<\/h4>\n<\/p>\n<p><p>\u5d4c\u5957if\u8bed\u53e5\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">if condition1:<\/p>\n<p>    if condition2:<\/p>\n<p>        # \u6267\u884c\u4ee3\u7801\u5757<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">age = 20<\/p>\n<p>is_student = True<\/p>\n<p>if age &gt;= 18:<\/p>\n<p>    if is_student:<\/p>\n<p>        print(&quot;You are an adult student.&quot;)<\/p>\n<p>    else:<\/p>\n<p>        print(&quot;You are an adult.&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;You are a minor.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u7a0b\u5e8f\u9996\u5148\u68c0\u67e5<code>age<\/code>\u662f\u5426\u5927\u4e8e\u6216\u7b49\u4e8e18\u3002\u5982\u679c\u662f\uff0c\u5b83\u5c06\u8fdb\u4e00\u6b65\u68c0\u67e5<code>is_student<\/code>\u7684\u503c\u3002<\/p>\n<\/p>\n<p><h4>2. \u5e94\u7528\u573a\u666f<\/h4>\n<\/p>\n<p><p>\u5d4c\u5957if\u8bed\u53e5\u5728\u9700\u8981\u5bf9\u591a\u4e2a\u6761\u4ef6\u8fdb\u884c\u5206\u5c42\u68c0\u67e5\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u903b\u8f91\u8fd0\u7b97\u7b26<\/h3>\n<\/p>\n<p><p>\u903b\u8f91\u8fd0\u7b97\u7b26\u7528\u4e8e\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6\uff0c\u5f62\u6210\u66f4\u590d\u6742\u7684\u5e03\u5c14\u8868\u8fbe\u5f0f\u3002Python\u4e2d\u5e38\u7528\u7684\u903b\u8f91\u8fd0\u7b97\u7b26\u5305\u62ec\uff1a<\/p>\n<\/p>\n<ul>\n<li><code>and<\/code>\uff1a\u4e0e\u8fd0\u7b97\uff0c\u4e24\u4e2a\u6761\u4ef6\u90fd\u4e3a\u771f\u65f6\u8fd4\u56deTrue<\/li>\n<li><code>or<\/code>\uff1a\u6216\u8fd0\u7b97\uff0c\u81f3\u5c11\u4e00\u4e2a\u6761\u4ef6\u4e3a\u771f\u65f6\u8fd4\u56deTrue<\/li>\n<li><code>not<\/code>\uff1a\u975e\u8fd0\u7b97\uff0c\u5c06\u5e03\u5c14\u503c\u53d6\u53cd<\/li>\n<\/ul>\n<p><h4>1. \u4f7f\u7528and\u8fd0\u7b97\u7b26<\/h4>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">age = 25<\/p>\n<p>has_license = True<\/p>\n<p>if age &gt;= 18 and has_license:<\/p>\n<p>    print(&quot;You are eligible to drive.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>age<\/code>\u548c<code>has_license<\/code>\u4e24\u4e2a\u6761\u4ef6\u90fd\u4e3a\u771f\u65f6\uff0c\u7a0b\u5e8f\u5c06\u8f93\u51fa&quot;You are eligible to drive.&quot;\u3002<\/p>\n<\/p>\n<p><h4>2. \u4f7f\u7528or\u8fd0\u7b97\u7b26<\/h4>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">is_weekend = True<\/p>\n<p>is_holiday = False<\/p>\n<p>if is_weekend or is_holiday:<\/p>\n<p>    print(&quot;You can relax today.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u53ea\u8981<code>is_weekend<\/code>\u6216<code>is_holiday<\/code>\u4e3a\u771f\uff0c\u7a0b\u5e8f\u5c06\u8f93\u51fa&quot;You can relax today.&quot;\u3002<\/p>\n<\/p>\n<p><h4>3. \u4f7f\u7528not\u8fd0\u7b97\u7b26<\/h4>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">is_r<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>ning = False<\/p>\n<p>if not is_raining:<\/p>\n<p>    print(&quot;You can go for a walk.&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u5982\u679c<code>is_raining<\/code>\u4e3a\u5047\uff0c\u7a0b\u5e8f\u5c06\u8f93\u51fa&quot;You can go for a walk.&quot;\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u77ed\u8def\u903b\u8f91<\/h3>\n<\/p>\n<p><p>Python\u4e2d\u7684\u903b\u8f91\u8fd0\u7b97\u7b26\u5177\u6709\u77ed\u8def\u7279\u6027\uff0c\u8fd9\u610f\u5473\u7740\u5728\u53ef\u4ee5\u786e\u5b9a\u8868\u8fbe\u5f0f\u7684\u6700\u7ec8\u503c\u65f6\uff0c\u540e\u7eed\u7684\u6761\u4ef6\u5c06\u4e0d\u518d\u88ab\u8bc4\u4f30\u3002<\/p>\n<\/p>\n<p><h4>1. \u77ed\u8def\u4e0e\u8fd0\u7b97<\/h4>\n<\/p>\n<p><p>\u5728<code>and<\/code>\u8fd0\u7b97\u4e2d\uff0c\u5982\u679c\u7b2c\u4e00\u4e2a\u6761\u4ef6\u4e3a\u5047\uff0c\u540e\u7eed\u6761\u4ef6\u5c06\u4e0d\u4f1a\u88ab\u8bc4\u4f30\u3002<\/p>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def check_first():<\/p>\n<p>    print(&quot;Checking first condition&quot;)<\/p>\n<p>    return False<\/p>\n<p>def check_second():<\/p>\n<p>    print(&quot;Checking second condition&quot;)<\/p>\n<p>    return True<\/p>\n<p>if check_first() and check_second():<\/p>\n<p>    print(&quot;Both conditions are true&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u7531\u4e8e<code>check_first()<\/code>\u8fd4\u56deFalse\uff0c<code>check_second()<\/code>\u5c06\u4e0d\u4f1a\u88ab\u8c03\u7528\u3002<\/p>\n<\/p>\n<p><h4>2. \u77ed\u8def\u6216\u8fd0\u7b97<\/h4>\n<\/p>\n<p><p>\u5728<code>or<\/code>\u8fd0\u7b97\u4e2d\uff0c\u5982\u679c\u7b2c\u4e00\u4e2a\u6761\u4ef6\u4e3a\u771f\uff0c\u540e\u7eed\u6761\u4ef6\u5c06\u4e0d\u4f1a\u88ab\u8bc4\u4f30\u3002<\/p>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def check_first():<\/p>\n<p>    print(&quot;Checking first condition&quot;)<\/p>\n<p>    return True<\/p>\n<p>def check_second():<\/p>\n<p>    print(&quot;Checking second condition&quot;)<\/p>\n<p>    return False<\/p>\n<p>if check_first() or check_second():<\/p>\n<p>    print(&quot;At least one condition is true&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u7531\u4e8e<code>check_first()<\/code>\u8fd4\u56deTrue\uff0c<code>check_second()<\/code>\u5c06\u4e0d\u4f1a\u88ab\u8c03\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u4e03\u3001\u6761\u4ef6\u8868\u8fbe\u5f0f<\/h3>\n<\/p>\n<p><p>Python\u8fd8\u652f\u6301\u4f7f\u7528\u6761\u4ef6\u8868\u8fbe\u5f0f\uff08\u53c8\u79f0\u4e3a\u4e09\u5143\u8868\u8fbe\u5f0f\uff09\u6765\u5b9e\u73b0\u7b80\u5355\u7684\u6761\u4ef6\u5224\u65ad\u3002<\/p>\n<\/p>\n<p><h4>1. \u57fa\u672c\u7ed3\u6784\u548c\u793a\u4f8b<\/h4>\n<\/p>\n<p><p>\u6761\u4ef6\u8868\u8fbe\u5f0f\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">value_if_true if condition else value_if_false<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">age = 18<\/p>\n<p>status = &quot;adult&quot; if age &gt;= 18 else &quot;minor&quot;<\/p>\n<p>print(status)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>status<\/code>\u5c06\u88ab\u8d4b\u503c\u4e3a&quot;adult&quot;\u3002<\/p>\n<\/p>\n<p><h4>2. \u5e94\u7528\u573a\u666f<\/h4>\n<\/p>\n<p><p>\u6761\u4ef6\u8868\u8fbe\u5f0f\u5728\u9700\u8981\u7b80\u6d01\u5730\u6839\u636e\u6761\u4ef6\u8d4b\u503c\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u516b\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0cif\u8bed\u53e5\u662f\u5b9e\u73b0\u6761\u4ef6\u5224\u65ad\u7684\u57fa\u672c\u7ed3\u6784\u3002\u901a\u8fc7\u7ed3\u5408elif\u548celse\u8bed\u53e5\uff0c\u4ee5\u53ca\u903b\u8f91\u8fd0\u7b97\u7b26\u3001\u5d4c\u5957\u7ed3\u6784\u7b49\uff0c\u53ef\u4ee5\u5b9e\u73b0\u590d\u6742\u7684\u6761\u4ef6\u903b\u8f91\u3002\u5728\u7f16\u5199\u6761\u4ef6\u8868\u8fbe\u5f0f\u65f6\uff0c\u6ce8\u610f\u7406\u89e3\u5e03\u5c14\u8868\u8fbe\u5f0f\u7684\u8bc4\u4f30\u89c4\u5219\u548c\u77ed\u8def\u903b\u8f91\u7684\u7279\u6027\uff0c\u4ee5\u7f16\u5199\u51fa\u9ad8\u6548\u7684\u4ee3\u7801\u3002\u6761\u4ef6\u8868\u8fbe\u5f0f\u4e5f\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u7b80\u5355\u7684\u6761\u4ef6\u903b\u8f91\u3002\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\u5c06\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u63a7\u5236\u7a0b\u5e8f\u7684\u6267\u884c\u6d41\u7a0b\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528if\u8bed\u53e5\u8fdb\u884c\u6761\u4ef6\u5224\u65ad\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0cif\u8bed\u53e5\u7528\u4e8e\u6839\u636e\u6761\u4ef6\u7684\u771f\u4f2a\u6765\u6267\u884c\u7279\u5b9a\u7684\u4ee3\u7801\u5757\u3002\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">if \u6761\u4ef6:\n    # \u6267\u884c\u7684\u4ee3\u7801\n<\/code><\/pre>\n<p>\u5f53\u6761\u4ef6\u4e3a\u771f\u65f6\uff0c\u7f29\u8fdb\u7684\u4ee3\u7801\u5757\u5c06\u88ab\u6267\u884c\u3002\u53ef\u4ee5\u7ed3\u5408<code>elif<\/code>\u548c<code>else<\/code>\u6765\u5904\u7406\u591a\u79cd\u60c5\u51b5\uff0c\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u903b\u8f91\u3002<\/p>\n<p><strong>Python\u4e2d\u7684\u6761\u4ef6\u5224\u65ad\u53ef\u4ee5\u4f7f\u7528\u54ea\u4e9b\u8fd0\u7b97\u7b26\uff1f<\/strong><br \/>Python\u652f\u6301\u591a\u79cd\u8fd0\u7b97\u7b26\u7528\u4e8e\u6761\u4ef6\u5224\u65ad\uff0c\u5305\u62ec\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff08\u5982<code>==<\/code>\u3001<code>!=<\/code>\u3001<code>&gt;<\/code>\u3001<code>&lt;<\/code>\u3001<code>&gt;=<\/code>\u3001<code>&lt;=<\/code>\uff09\u548c\u903b\u8f91\u8fd0\u7b97\u7b26\uff08\u5982<code>and<\/code>\u3001<code>or<\/code>\u3001<code>not<\/code>\uff09\u3002\u901a\u8fc7\u8fd9\u4e9b\u8fd0\u7b97\u7b26\uff0c\u53ef\u4ee5\u6784\u5efa\u590d\u6742\u7684\u6761\u4ef6\u8868\u8fbe\u5f0f\uff0c\u4ee5\u4fbf\u8fdb\u884c\u66f4\u7ec6\u81f4\u7684\u5224\u65ad\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728if\u8bed\u53e5\u4e2d\u4f7f\u7528\u5e03\u5c14\u503c\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u5e03\u5c14\u503c<code>True<\/code>\u548c<code>False<\/code>\u53ef\u4ee5\u76f4\u63a5\u7528\u4f5cif\u8bed\u53e5\u7684\u6761\u4ef6\u3002\u5f53\u6761\u4ef6\u4e3a<code>True<\/code>\u65f6\uff0c\u4ee3\u7801\u5757\u4f1a\u88ab\u6267\u884c\uff1b\u5f53\u6761\u4ef6\u4e3a<code>False<\/code>\u65f6\uff0c\u4ee3\u7801\u5757\u5c06\u88ab\u8df3\u8fc7\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u6e05\u6670\uff0c\u5c24\u5176\u5728\u9700\u8981\u57fa\u4e8e\u5e03\u5c14\u503c\u7684\u5224\u65ad\u65f6\u975e\u5e38\u6709\u6548\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5224\u65adif\u8bed\u53e5\u7684\u4e3b\u8981\u65b9\u6cd5\u662f\u5229\u7528\u6761\u4ef6\u8868\u8fbe\u5f0f\u6765\u8bc4\u4f30\u67d0\u4e2a\u6761\u4ef6\u662f\u5426\u4e3a\u771f\u3002\u5982\u679c\u6761\u4ef6\u4e3a\u771f\uff0c\u5219\u6267\u884c\u4e0eif\u8bed\u53e5\u76f8 [&hellip;]","protected":false},"author":3,"featured_media":992712,"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\/992641"}],"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=992641"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/992641\/revisions"}],"predecessor-version":[{"id":992716,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/992641\/revisions\/992716"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/992712"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=992641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=992641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=992641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}