{"id":954263,"date":"2024-12-27T01:54:41","date_gmt":"2024-12-26T17:54:41","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/954263.html"},"modified":"2024-12-27T01:54:44","modified_gmt":"2024-12-26T17:54:44","slug":"python%e5%a6%82%e4%bd%95%e8%be%93%e5%87%ba%e5%8f%8d%e5%ba%8f%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/954263.html","title":{"rendered":"python\u5982\u4f55\u8f93\u51fa\u53cd\u5e8f\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25094526\/314afb56-4622-4278-8d41-ae0b2fc01c4e.webp\" alt=\"python\u5982\u4f55\u8f93\u51fa\u53cd\u5e8f\u6570\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u8f93\u51fa\u53cd\u5e8f\u6570\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u3001\u5faa\u73af\u904d\u5386\u3001\u9012\u5f52\u51fd\u6570\u7b49\u3002\u5b57\u7b26\u4e32\u5207\u7247\u662f\u6700\u7b80\u5355\u548c\u76f4\u63a5\u7684\u65b9\u6cd5<\/strong>\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u6765\u5b9e\u73b0\u53cd\u5e8f\u3002\u5b57\u7b26\u4e32\u5207\u7247\u7684\u8bed\u6cd5\u662f<code>string[::-1]<\/code>\uff0c\u8fd9\u610f\u5473\u7740\u4ece\u5b57\u7b26\u4e32\u7684\u672b\u5c3e\u5230\u5f00\u5934\u4ee5\u6b65\u957f\u4e3a-1\u7684\u65b9\u5f0f\u904d\u5386\u5b57\u7b26\u4e32\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u5730\u5c06\u6570\u5b57\u7684\u987a\u5e8f\u53cd\u8f6c\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u63cf\u8ff0\u8fd9\u79cd\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5176\u4ed6\u51e0\u79cd\u5b9e\u73b0\u53cd\u5e8f\u6570\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247<\/h3>\n<\/p>\n<p><p>\u5b57\u7b26\u4e32\u5207\u7247\u662f\u4e00\u79cd\u7b80\u5355\u4e14\u76f4\u89c2\u7684\u65b9\u5f0f\u6765\u53cd\u8f6c\u4e00\u4e2a\u6570\u5b57\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5c06\u6570\u5b57\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u5e94\u7528\u5207\u7247\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32<\/strong>\uff1a\u4f7f\u7528<code>str()<\/code>\u51fd\u6570\u3002<\/li>\n<li><strong>\u53cd\u8f6c\u5b57\u7b26\u4e32<\/strong>\uff1a\u4f7f\u7528\u5207\u7247\u64cd\u4f5c<code>[::-1]<\/code>\u3002<\/li>\n<li><strong>\u5c06\u53cd\u8f6c\u540e\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u56de\u6570\u5b57<\/strong>\uff1a\u4f7f\u7528<code>int()<\/code>\u51fd\u6570\u3002<\/li>\n<\/ol>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def reverse_number(n):<\/p>\n<p>    return int(str(n)[::-1])<\/p>\n<h2><strong>\u793a\u4f8b<\/strong><\/h2>\n<p>number = 12345<\/p>\n<p>reversed_number = reverse_number(number)<\/p>\n<p>print(reversed_number)  # \u8f93\u51fa\uff1a54321<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u7b80\u6d01\uff0c\u9002\u7528\u4e8e\u6b63\u6570\u548c\u8d1f\u6570\uff0c\u4f46\u5bf9\u4e8e\u5c0f\u6570\u6216\u975e\u6574\u6570\u7c7b\u578b\uff0c\u9700\u8981\u989d\u5916\u7684\u5904\u7406\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u5faa\u73af\u904d\u5386<\/h3>\n<\/p>\n<p><p>\u4f7f\u7528\u5faa\u73af\u904d\u5386\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u9010\u4f4d\u63d0\u53d6\u6570\u5b57\u5e76\u6784\u5efa\u53cd\u5e8f\u6570\u3002\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u521d\u59cb\u5316\u53cd\u5e8f\u6570\u4e3a0<\/strong>\u3002<\/li>\n<li><strong>\u9010\u4f4d\u63d0\u53d6\u6570\u5b57<\/strong>\uff1a\u901a\u8fc7\u5bf910\u53d6\u4f59\u83b7\u5f97\u6700\u672b\u4f4d\u7684\u6570\u5b57\u3002<\/li>\n<li><strong>\u6784\u5efa\u53cd\u5e8f\u6570<\/strong>\uff1a\u5c06\u63d0\u53d6\u7684\u6570\u5b57\u6309\u987a\u5e8f\u6dfb\u52a0\u5230\u53cd\u5e8f\u6570\u4e2d\u3002<\/li>\n<li><strong>\u53bb\u6389\u672b\u4f4d\u6570\u5b57<\/strong>\uff1a\u901a\u8fc7\u6574\u6570\u9664\u4ee510\u3002<\/li>\n<\/ol>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def reverse_number_iterative(n):<\/p>\n<p>    reversed_number = 0<\/p>\n<p>    while n &gt; 0:<\/p>\n<p>        digit = n % 10<\/p>\n<p>        reversed_number = reversed_number * 10 + digit<\/p>\n<p>        n = n \/\/ 10<\/p>\n<p>    return reversed_number<\/p>\n<h2><strong>\u793a\u4f8b<\/strong><\/h2>\n<p>number = 12345<\/p>\n<p>reversed_number = reverse_number_iterative(number)<\/p>\n<p>print(reversed_number)  # \u8f93\u51fa\uff1a54321<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u9700\u8981\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u56e0\u6b64\u9002\u7528\u4e8e\u5404\u79cd\u6570\u503c\u7c7b\u578b\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528\u9012\u5f52\u51fd\u6570<\/h3>\n<\/p>\n<p><p>\u9012\u5f52\u662f\u4e00\u79cd\u66f4\u4e3a\u5de7\u5999\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u53cd\u5e8f\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u9012\u5f52\u51fd\u6570\u6765\u4e0d\u65ad\u63d0\u53d6\u6570\u5b57\u5e76\u53cd\u5411\u6784\u5efa\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u57fa\u51c6\u6761\u4ef6<\/strong>\uff1a\u5f53\u6570\u5b57\u5c0f\u4e8e10\u65f6\uff0c\u76f4\u63a5\u8fd4\u56de\u3002<\/li>\n<li><strong>\u9012\u5f52\u8c03\u7528<\/strong>\uff1a\u63d0\u53d6\u6700\u4f4e\u4f4d\u6570\u5b57\uff0c\u5c06\u5176\u4e0e\u9012\u5f52\u7ed3\u679c\u7ed3\u5408\u3002<\/li>\n<\/ol>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def reverse_number_recursive(n, result=0):<\/p>\n<p>    if n == 0:<\/p>\n<p>        return result<\/p>\n<p>    else:<\/p>\n<p>        return reverse_number_recursive(n \/\/ 10, result * 10 + n % 10)<\/p>\n<h2><strong>\u793a\u4f8b<\/strong><\/h2>\n<p>number = 12345<\/p>\n<p>reversed_number = reverse_number_recursive(number)<\/p>\n<p>print(reversed_number)  # \u8f93\u51fa\uff1a54321<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u9012\u5f52\u65b9\u6cd5\u5728\u6982\u5ff5\u4e0a\u4f18\u96c5\uff0c\u4f46\u5728\u5904\u7406\u5927\u6570\u5b57\u65f6\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6808\u6ea2\u51fa\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u5904\u7406\u8d1f\u6570\u548c\u5c0f\u6570<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u73b0\u53cd\u5e8f\u6570\u65f6\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u8003\u8651\u8d1f\u6570\u548c\u5c0f\u6570\u7684\u60c5\u51b5\u3002\u5bf9\u4e8e\u8d1f\u6570\uff0c\u53ef\u4ee5\u5728\u53cd\u8f6c\u540e\u6dfb\u52a0\u8d1f\u53f7\u3002\u5bf9\u4e8e\u5c0f\u6570\uff0c\u53ef\u4ee5\u5148\u5c06\u5c0f\u6570\u90e8\u5206\u5355\u72ec\u5904\u7406\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u5904\u7406\u8d1f\u6570<\/strong>\uff1a\u68c0\u67e5\u6570\u5b57\u662f\u5426\u5c0f\u4e8e0\uff0c\u82e5\u662f\uff0c\u5219\u5728\u7ed3\u679c\u524d\u6dfb\u52a0\u8d1f\u53f7\u3002<\/li>\n<li><strong>\u5904\u7406\u5c0f\u6570<\/strong>\uff1a\u5c06\u6574\u6570\u90e8\u5206\u548c\u5c0f\u6570\u90e8\u5206\u5206\u5f00\u5904\u7406\uff0c\u7136\u540e\u7ec4\u5408\u7ed3\u679c\u3002<\/li>\n<\/ol>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def reverse_number_with_decimal(n):<\/p>\n<p>    if n &lt; 0:<\/p>\n<p>        return -reverse_number_with_decimal(-n)<\/p>\n<p>    str_n = str(n)<\/p>\n<p>    if &#39;.&#39; in str_n:<\/p>\n<p>        integer_part, decimal_part = str_n.split(&#39;.&#39;)<\/p>\n<p>        reversed_integer = reverse_number(int(integer_part))<\/p>\n<p>        reversed_decimal = reverse_number(int(decimal_part))<\/p>\n<p>        return float(f&quot;{reversed_integer}.{reversed_decimal}&quot;)<\/p>\n<p>    else:<\/p>\n<p>        return reverse_number(int(n))<\/p>\n<h2><strong>\u793a\u4f8b<\/strong><\/h2>\n<p>number = -123.456<\/p>\n<p>reversed_number = reverse_number_with_decimal(number)<\/p>\n<p>print(reversed_number)  # \u8f93\u51fa\uff1a-321.654<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u4f7f\u7528Python\u5185\u7f6e\u51fd\u6570<\/h3>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5185\u7f6e\u51fd\u6570\u548c\u5e93\uff0c\u53ef\u4ee5\u7b80\u5316\u53cd\u5e8f\u6570\u7684\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>reversed()<\/code>\u51fd\u6570\u7ed3\u5408<code>join()<\/code>\u65b9\u6cd5\u6765\u53cd\u8f6c\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def reverse_number_builtin(n):<\/p>\n<p>    return int(&#39;&#39;.join(reversed(str(n))))<\/p>\n<h2><strong>\u793a\u4f8b<\/strong><\/h2>\n<p>number = 12345<\/p>\n<p>reversed_number = reverse_number_builtin(number)<\/p>\n<p>print(reversed_number)  # \u8f93\u51fa\uff1a54321<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7b80\u6d01\u660e\u4e86\uff0c\u4f46\u540c\u6837\u9700\u8981\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u6027\u80fd\u4e0e\u4f18\u5316<\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u6216\u5728\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u5408\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u5f88\u91cd\u8981\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5b57\u7b26\u4e32\u5207\u7247\u548c\u5faa\u73af\u904d\u5386\u662f\u6027\u80fd\u8f83\u597d\u7684\u9009\u62e9\u3002\u9012\u5f52\u65b9\u6cd5\u5728\u5904\u7406\u5c0f\u89c4\u6a21\u6570\u636e\u65f6\u8868\u73b0\u826f\u597d\uff0c\u4f46\u5bf9\u4e8e\u5927\u6570\u636e\u96c6\u53ef\u80fd\u4f1a\u5bfc\u81f4\u9012\u5f52\u6df1\u5ea6\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u591a\u79cd\u65b9\u6cd5\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6848\u6765\u5b9e\u73b0\u53cd\u5e8f\u6570\u3002\u65e0\u8bba\u662f\u5904\u7406\u6574\u6570\u3001\u5c0f\u6570\u8fd8\u662f\u8d1f\u6570\uff0cPython\u90fd\u80fd\u4e3a\u6211\u4eec\u63d0\u4f9b\u7075\u6d3b\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5e0c\u671b\u8fd9\u4e9b\u65b9\u6cd5\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u5b9e\u73b0\u53cd\u5e8f\u6570\u7684\u8f93\u51fa\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u4f7f\u7528Python\u5c06\u6574\u6570\u53cd\u8f6c\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u6574\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4f7f\u7528\u5207\u7247\u53cd\u8f6c\u5b57\u7b26\u4e32\uff0c\u518d\u5c06\u5176\u8f6c\u6362\u56de\u6574\u6570\u6765\u5b9e\u73b0\u53cd\u8f6c\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">num = 12345\nreversed_num = int(str(num)[::-1])\nprint(reversed_num)  # \u8f93\u51fa\uff1a54321\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u6613\u61c2\u4e14\u6709\u6548\u3002<\/p>\n<p><strong>Python\u4e2d\u662f\u5426\u6709\u5185\u7f6e\u51fd\u6570\u53ef\u4ee5\u53cd\u8f6c\u6570\u5b57\uff1f<\/strong><br \/>Python\u672c\u8eab\u5e76\u6ca1\u6709\u4e13\u95e8\u7684\u5185\u7f6e\u51fd\u6570\u7528\u4e8e\u53cd\u8f6c\u6570\u5b57\uff0c\u4f46\u53ef\u4ee5\u5229\u7528\u5b57\u7b26\u4e32\u64cd\u4f5c\u6216\u5217\u8868\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u5207\u7247\u529f\u80fd\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u505a\u6cd5\u3002<\/p>\n<p><strong>\u5728\u53cd\u8f6c\u6570\u503c\u65f6\uff0c\u5982\u4f55\u5904\u7406\u8d1f\u6570\u548c\u96f6\uff1f<\/strong><br \/>\u5904\u7406\u8d1f\u6570\u65f6\uff0c\u53ef\u4ee5\u5148\u5224\u65ad\u6570\u5b57\u7684\u7b26\u53f7\uff0c\u5c06\u5176\u8f6c\u6362\u4e3a\u6b63\u6570\u540e\u8fdb\u884c\u53cd\u8f6c\uff0c\u6700\u540e\u518d\u52a0\u4e0a\u8d1f\u53f7\u3002\u5bf9\u4e8e\u96f6\uff0c\u53cd\u8f6c\u540e\u4ecd\u7136\u662f\u96f6\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">def reverse_number(num):\n    if num &lt; 0:\n        return -reverse_number(-num)\n    return int(str(num)[::-1])\n\nprint(reverse_number(-123))  # \u8f93\u51fa\uff1a-321\nprint(reverse_number(0))     # \u8f93\u51fa\uff1a0\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u786e\u4fdd\u4e86\u65e0\u8bba\u8f93\u5165\u662f\u4ec0\u4e48\u7c7b\u578b\u7684\u6574\u6570\uff0c\u7ed3\u679c\u90fd\u662f\u6b63\u786e\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u8f93\u51fa\u53cd\u5e8f\u6570\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u3001\u5faa\u73af\u904d\u5386\u3001\u9012\u5f52\u51fd\u6570\u7b49\u3002\u5b57\u7b26\u4e32\u5207\u7247\u662f\u6700\u7b80\u5355\u548c\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u6211\u4eec [&hellip;]","protected":false},"author":3,"featured_media":954273,"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\/954263"}],"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=954263"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/954263\/revisions"}],"predecessor-version":[{"id":954274,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/954263\/revisions\/954274"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/954273"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=954263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=954263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=954263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}