{"id":114974,"date":"2026-10-10T17:49:04","date_gmt":"2026-10-10T09:49:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/114974.html"},"modified":"2026-10-10T17:49:04","modified_gmt":"2026-10-10T09:49:04","slug":"python-%e5%88%97%e8%a1%a8%e5%8f%8d%e8%bd%ac%e7%9a%84-4-%e7%a7%8d%e4%b8%bb%e6%b5%81%e5%ae%9e%e7%8e%b0%e6%96%b9%e5%bc%8f%ef%bc%8c90-%e7%9a%84%e4%ba%ba%e9%83%bd%e8%b8%a9%e8%bf%87-reverse-%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/114974.html","title":{"rendered":"Python \u5217\u8868\u53cd\u8f6c\u7684 4 \u79cd\u4e3b\u6d41\u5b9e\u73b0\u65b9\u5f0f\uff0c90% \u7684\u4eba\u90fd\u8e29\u8fc7 reverse () \u7684\u5751"},"content":{"rendered":"<p>\u5728 Python \u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u5217\u8868\u53cd\u8f6c\u662f\u6700\u57fa\u7840\u4e5f\u6700\u9ad8\u9891\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002 \u5f88\u591a\u521d\u5b66\u8005\u4e0a\u624b\u5c31\u5199 for \u5faa\u73af\u624b\u52a8\u62fc\u63a5&#xff0c;\u6216\u8005\u4e71\u7528 reverse() \u65b9\u6cd5\u5bfc\u81f4\u539f\u5217\u8868\u6570\u636e\u88ab\u7be1\u6539&#xff0c;\u6392\u67e5\u534a\u5929\u627e\u4e0d\u5230 bug\u3002 \u672c\u6587\u4e00\u6b21\u6027\u68b3\u7406 4 \u79cd\u4e3b\u6d41\u7684\u5217\u8868\u53cd\u8f6c\u5b9e\u73b0&#xff0c;\u4ece\u539f\u7406\u3001\u9002\u7528\u573a\u666f\u5230\u907f\u5751\u6307\u5357\u5168\u8986\u76d6&#xff0c;\u770b\u5b8c\u4f60\u5c31\u80fd\u6839\u636e\u4e1a\u52a1\u573a\u666f\u9009\u6700\u4f18\u5199\u6cd5\u3002<\/p>\n<h3>\u4e00\u3001\u5207\u7247\u53cd\u8f6c [::-1] \u2014\u2014 \u65e5\u5e38\u5f00\u53d1\u9996\u9009<\/h3>\n<p>\u8fd9\u662f Python \u6700\u5177\u7279\u8272\u7684\u5199\u6cd5&#xff0c;\u7b80\u6d01\u4e14\u5b89\u5168&#xff0c;\u4e0d\u4fee\u6539\u539f\u5217\u8868&#xff0c;\u76f4\u63a5\u751f\u6210\u65b0\u5217\u8868&#xff0c;\u4e5f\u662f\u7edd\u5927\u591a\u6570\u573a\u666f\u7684\u9996\u9009\u65b9\u6848\u3002<\/p>\n<h4>\u4ee3\u7801\u793a\u4f8b<\/h4>\n<p># \u539f\u59cb\u5217\u8868<br \/>\noriginal_list &#061; [1, 2, 3, 4, 5]<\/p>\n<p># \u5207\u7247\u53cd\u8f6c&#xff0c;\u751f\u6210\u65b0\u5217\u8868<br \/>\nreversed_list &#061; original_list[::-1]<\/p>\n<p>print(&#034;\u53cd\u8f6c\u540e&#xff1a;&#034;, reversed_list)  # [5, 4, 3, 2, 1]<br \/>\nprint(&#034;\u539f\u5217\u8868&#xff1a;&#034;, original_list)  # [1, 2, 3, 4, 5] \u539f\u6570\u636e\u4e0d\u53d7\u5f71\u54cd<\/p>\n<h4>\u539f\u7406\u8bf4\u660e<\/h4>\n<p>\u5207\u7247\u8bed\u6cd5 list[start:end:step] \u4e2d&#xff0c;\u5f53\u6b65\u957f step &#061; -1 \u65f6&#xff0c;\u4ee3\u8868\u4ece\u5217\u8868\u672b\u5c3e\u5411\u524d\u9006\u5e8f\u904d\u5386\u53d6\u503c\u3002 \u7701\u7565 start \u548c end \u65f6&#xff0c;\u9ed8\u8ba4\u8986\u76d6\u6574\u4e2a\u5217\u8868&#xff0c;\u6700\u7ec8\u8fd4\u56de\u4e00\u4e2a\u5168\u65b0\u7684\u53cd\u8f6c\u5217\u8868\u3002<\/p>\n<h4>\u9002\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u7edd\u5927\u591a\u6570\u4e1a\u52a1\u573a\u666f&#xff0c;\u9700\u8981\u4fdd\u7559\u539f\u5217\u8868\u6570\u636e<\/li>\n<li>\u4ee3\u7801\u8ffd\u6c42\u7b80\u6d01\u6613\u8bfb&#xff0c;\u4e0d\u60f3\u989d\u5916\u5c01\u88c5\u51fd\u6570<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e8c\u3001\u539f\u5730\u53cd\u8f6c reverse() \u2014\u2014 \u5927\u6570\u636e\u91cf\u9996\u9009<\/h3>\n<p>reverse() \u662f\u5217\u8868\u81ea\u5e26\u7684\u539f\u751f\u65b9\u6cd5&#xff0c;\u76f4\u63a5\u4fee\u6539\u539f\u5217\u8868\u672c\u8eab&#xff0c;\u6ca1\u6709\u8fd4\u56de\u503c&#xff08;\u8fd4\u56de None&#xff09;\u3002\u56e0\u4e3a\u4e0d\u751f\u6210\u65b0\u5bf9\u8c61&#xff0c;\u5185\u5b58\u5360\u7528\u6781\u4f4e\u3002<\/p>\n<h4>\u4ee3\u7801\u793a\u4f8b<\/h4>\n<p>original_list &#061; [1, 2, 3, 4, 5]<\/p>\n<p># \u539f\u5730\u53cd\u8f6c&#xff0c;\u4fee\u6539\u539f\u5217\u8868<br \/>\noriginal_list.reverse()<\/p>\n<p>print(&#034;\u53cd\u8f6c\u540e&#xff1a;&#034;, original_list)  # [5, 4, 3, 2, 1]<\/p>\n<h4>\u9ad8\u9891\u8e29\u5751<\/h4>\n<p>\u274c \u7ecf\u5178\u9519\u8bef\u5199\u6cd5&#xff1a;<\/p>\n<p>new_list &#061; original_list.reverse()<br \/>\nprint(new_list)  # None&#xff01;\u4e0d\u662f\u53cd\u8f6c\u540e\u7684\u5217\u8868<\/p>\n<p>\u5f88\u591a\u4eba\u4ee5\u4e3a reverse () \u4f1a\u8fd4\u56de\u65b0\u5217\u8868&#xff0c;\u5176\u5b9e\u5b83\u662f\u539f\u5730\u64cd\u4f5c&#xff0c;\u8fd4\u56de\u503c\u662f None&#xff0c;\u8fd9\u662f\u65b0\u624b\u6700\u9ad8\u53d1\u7684 bug \u4e4b\u4e00\u3002<\/p>\n<h4>\u9002\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u5217\u8868\u6570\u636e\u91cf\u5f88\u5927&#xff08;\u4e07\u7ea7\u3001\u5341\u4e07\u7ea7\u4ee5\u4e0a&#xff09;&#xff0c;\u60f3\u8282\u7701\u5185\u5b58\u5f00\u9500<\/li>\n<li>\u4e0d\u9700\u8981\u4fdd\u7559\u539f\u5217\u8868\u6570\u636e&#xff0c;\u53cd\u8f6c\u540e\u539f\u6570\u636e\u4e0d\u518d\u4f7f\u7528<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e09\u3001\u5185\u7f6e\u51fd\u6570 reversed() \u2014\u2014 \u904d\u5386\u4e13\u7528<\/h3>\n<p>reversed() \u662f Python \u5185\u7f6e\u5168\u5c40\u51fd\u6570&#xff0c;\u4e0d\u4fee\u6539\u539f\u5217\u8868&#xff0c;\u8fd4\u56de\u4e00\u4e2a\u53cd\u8f6c\u8fed\u4ee3\u5668\u5bf9\u8c61\u3002<\/p>\n<h4>\u4ee3\u7801\u793a\u4f8b<\/h4>\n<p>original_list &#061; [1, 2, 3, 4, 5]<\/p>\n<p># \u5f97\u5230\u53cd\u8f6c\u8fed\u4ee3\u5668<br \/>\nrev_iter &#061; reversed(original_list)<\/p>\n<p># \u65b9\u5f0f1&#xff1a;\u8f6c\u6210\u5217\u8868\u4f7f\u7528<br \/>\nreversed_list &#061; list(rev_iter)<br \/>\nprint(reversed_list)  # [5, 4, 3, 2, 1]<\/p>\n<p># \u65b9\u5f0f2&#xff1a;\u76f4\u63a5\u904d\u5386&#xff08;\u7701\u5185\u5b58&#xff0c;\u63a8\u8350&#xff09;<br \/>\nfor item in reversed(original_list):<br \/>\n    print(item, end&#061;&#034; &#034;)  # 5 4 3 2 1<\/p>\n<h4>\u7279\u70b9\u8bf4\u660e<\/h4>\n<p>\u8fed\u4ee3\u5668\u53ea\u80fd\u904d\u5386\u4e00\u6b21&#xff0c;\u904d\u5386\u5b8c\u5c31\u7a7a\u4e86&#xff1b;\u5982\u679c\u9700\u8981\u591a\u6b21\u4f7f\u7528&#xff0c;\u5efa\u8bae\u63d0\u524d\u8f6c\u6210\u5217\u8868\u4fdd\u5b58\u3002<\/p>\n<h4>\u9002\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u53ea\u9700\u8981\u9010\u4e2a\u904d\u5386\u53cd\u8f6c\u540e\u7684\u5143\u7d20&#xff0c;\u4e0d\u9700\u8981\u5b8c\u6574\u7684\u53cd\u8f6c\u5217\u8868<\/li>\n<li>\u5927\u6570\u636e\u91cf\u4e0b\u9010\u4e2a\u5904\u7406&#xff0c;\u6781\u81f4\u8282\u7701\u5185\u5b58<\/li>\n<\/ul>\n<hr \/>\n<h3>\u56db\u3001\u624b\u52a8 for \u5faa\u73af\u53cd\u8f6c \u2014\u2014 \u7406\u89e3\u539f\u7406\u7528<\/h3>\n<p>\u901a\u8fc7\u7d22\u5f15\u4ece\u540e\u5f80\u524d\u904d\u5386&#xff0c;\u624b\u52a8\u6784\u5efa\u65b0\u5217\u8868\u3002\u5b9e\u9645\u5f00\u53d1\u4e0d\u63a8\u8350&#xff0c;\u4f46\u975e\u5e38\u9002\u5408\u7406\u89e3\u53cd\u8f6c\u7684\u5e95\u5c42\u903b\u8f91\u3002<\/p>\n<h4>\u4ee3\u7801\u793a\u4f8b<\/h4>\n<p>original_list &#061; [1, 2, 3, 4, 5]<br \/>\nreversed_list &#061; []<\/p>\n<p># \u4ece\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u4e0b\u6807\u5f00\u59cb&#xff0c;\u5012\u5e8f\u904d\u5386<br \/>\nfor i in range(len(original_list) &#8211; 1, -1, -1):<br \/>\n    reversed_list.append(original_list[i])<\/p>\n<p>print(reversed_list)  # [5, 4, 3, 2, 1]<\/p>\n<h4>\u9002\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u5b66\u4e60 Python \u57fa\u7840&#xff0c;\u7406\u89e3\u5217\u8868\u7d22\u5f15\u548c\u53cd\u8f6c\u539f\u7406<\/li>\n<li>\u9700\u8981\u81ea\u5b9a\u4e49\u53cd\u8f6c\u903b\u8f91\u7684\u7279\u6b8a\u4e1a\u52a1\u573a\u666f<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e94\u30014 \u79cd\u65b9\u6cd5\u6a2a\u5411\u5bf9\u6bd4<\/h3>\n<p>\u4e00\u5f20\u8868\u770b\u61c2\u5dee\u5f02&#xff0c;\u6309\u9700\u9009\u62e9&#xff1a;<\/p>\n<table>\n<tr>\u5b9e\u73b0\u65b9\u5f0f\u662f\u5426\u4fee\u6539\u539f\u5217\u8868\u8fd4\u56de\u503c\u7c7b\u578b\u5185\u5b58\u5360\u7528\u63a8\u8350\u6307\u6570\u6838\u5fc3\u9002\u7528\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>list[::-1]<\/td>\n<td>\u274c \u4e0d\u4fee\u6539<\/td>\n<td>\u65b0\u5217\u8868<\/td>\n<td>\u4e2d<\/td>\n<td>\u2b50\u2b50\u2b50\u2b50\u2b50<\/td>\n<td>\u7edd\u5927\u591a\u6570\u5e38\u89c4\u573a\u666f&#xff0c;\u517c\u987e\u7b80\u6d01\u4e0e\u5b89\u5168<\/td>\n<\/tr>\n<tr>\n<td>list.reverse()<\/td>\n<td>\u2705 \u4fee\u6539<\/td>\n<td>None<\/td>\n<td>\u6781\u4f4e<\/td>\n<td>\u2b50\u2b50\u2b50\u2b50<\/td>\n<td>\u5927\u6570\u636e\u91cf\u3001\u65e0\u9700\u4fdd\u7559\u539f\u5217\u8868<\/td>\n<\/tr>\n<tr>\n<td>reversed(list)<\/td>\n<td>\u274c \u4e0d\u4fee\u6539<\/td>\n<td>\u8fed\u4ee3\u5668<\/td>\n<td>\u6781\u4f4e<\/td>\n<td>\u2b50\u2b50\u2b50\u2b50<\/td>\n<td>\u4ec5\u9700\u904d\u5386\u3001\u65e0\u9700\u5b8c\u6574\u5217\u8868<\/td>\n<\/tr>\n<tr>\n<td>\u624b\u52a8 for \u5faa\u73af<\/td>\n<td>\u274c \u4e0d\u4fee\u6539<\/td>\n<td>\u65b0\u5217\u8868<\/td>\n<td>\u4e2d<\/td>\n<td>\u2b50\u2b50<\/td>\n<td>\u5b66\u4e60\u539f\u7406\u3001\u7279\u6b8a\u81ea\u5b9a\u4e49\u903b\u8f91<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>\u516d\u3001\u907f\u5751\u6307\u5357<\/h3>\n<li>reverse() \u6ca1\u6709\u8fd4\u56de\u503c&#xff1a;\u4e0d\u8981\u7528\u53d8\u91cf\u63a5\u6536\u5b83\u7684\u8fd4\u56de\u503c&#xff0c;\u5426\u5219\u5f97\u5230 None&#xff0c;\u8fd9\u662f\u6392\u540d\u7b2c\u4e00\u7684\u8e29\u5751\u70b9<\/li>\n<li>reversed() \u662f\u8fed\u4ee3\u5668&#xff1a;\u53ea\u80fd\u904d\u5386\u4e00\u6b21&#xff0c;\u591a\u6b21\u4f7f\u7528\u8bf7\u5148\u8f6c list<\/li>\n<li>\u5207\u7247\u662f\u6d45\u62f7\u8d1d&#xff1a;\u5982\u679c\u5217\u8868\u91cc\u662f\u5b57\u5178\u3001\u5bf9\u8c61\u7b49\u53ef\u53d8\u5143\u7d20&#xff0c;\u4fee\u6539\u65b0\u5217\u8868\u91cc\u7684\u5143\u7d20\u4f1a\u5f71\u54cd\u539f\u5217\u8868<\/li>\n<li>\u5927\u6570\u636e\u4f18\u5148\u9009\u539f\u5730 \/ \u8fed\u4ee3\u5668&#xff1a;\u5341\u4e07\u7ea7\u4ee5\u4e0a\u7684\u5927\u5217\u8868&#xff0c;\u4f18\u5148\u7528 reverse() \u6216 reversed()&#xff0c;\u907f\u514d\u5207\u7247\u751f\u6210\u5927\u5bf9\u8c61\u5360\u7528\u5185\u5b58<\/li>\n<hr \/>\n<h3>\u4e03\u3001\u603b\u7ed3<\/h3>\n<ul>\n<li>\u65e5\u5e38\u5199\u4e1a\u52a1\u4ee3\u7801&#xff0c;\u4f18\u5148\u7528 [::-1]&#xff0c;\u7b80\u6d01\u5b89\u5168\u4e0d\u51fa\u9519<\/li>\n<li>\u5927\u6570\u636e\u91cf\u4e14\u4e0d\u9700\u8981\u539f\u5217\u8868&#xff0c;\u7528 reverse() \u7701\u5185\u5b58<\/li>\n<li>\u53ea\u9700\u8981\u904d\u5386\u53cd\u8f6c\u7ed3\u679c&#xff0c;\u7528 reversed() \u6027\u80fd\u6700\u597d<\/li>\n<li>\u65b0\u624b\u53ef\u4ee5\u7528 for \u5faa\u73af\u7406\u89e3\u539f\u7406&#xff0c;\u5b9e\u9645\u5f00\u53d1\u522b\u8fd9\u4e48\u5199<\/li>\n<\/ul>\n<p>\u4f60\u5e73\u65f6\u5f00\u53d1\u6700\u5e38\u7528\u54ea\u79cd\u5217\u8868\u53cd\u8f6c\u7684\u5199\u6cd5&#xff1f;\u6709\u6ca1\u6709\u8e29\u8fc7\u76f8\u5173\u7684\u5751&#xff1f;\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41&#xff5e;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Python \u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u5217\u8868\u53cd\u8f6c\u662f\u6700\u57fa\u7840\u4e5f\u6700\u9ad8\u9891\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002 \u5f88\u591a\u521d\u5b66\u8005\u4e0a\u624b\u5c31\u5199 for \u5faa\u73af\u624b\u52a8\u62fc\u63a5&#xff0c;\u6216\u8005\u4e71\u7528 reverse() \u65b9\u6cd5\u5bfc\u81f4\u539f\u5217\u8868\u6570\u636e\u88ab\u7be1\u6539&#xff0c;\u6392\u67e5\u534a\u5929\u627e\u4e0d\u5230 bug\u3002 \u672c\u6587\u4e00\u6b21\u6027\u68b3\u7406 4 \u79cd\u4e3b\u6d41\u7684\u5217\u8868\u53cd\u8f6c\u5b9e\u73b0&#xff0c;\u4ece\u539f\u7406\u3001\u9002\u7528\u573a\u666f\u5230\u907f\u5751\u6307\u5357\u5168\u8986\u76d6&#xff0c;\u770b\u5b8c\u4f60\u5c31\u80fd\u6839\u636e\u4e1a\u52a1\u573a\u666f\u9009\u6700\u4f18\u5199\u6cd5\u3002\u4e00\u3001\u5207\u7247\u53cd\u8f6c [::-1] \u2014\u2014 \u65e5\u5e38\u5f00\u53d1\u9996\u9009\u8fd9\u662f Python \u6700\u5177\u7279\u8272\u7684\u5199\u6cd5&#xff0c;\u7b80\u6d01\u4e14\u5b89\u5168&amp;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9098,13077,81,190],"topic":[],"class_list":["post-114974","post","type-post","status-publish","format-standard","hentry","category-server","tag-it","tag-python","tag-190"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python 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