{"id":152,"date":"2026-10-05T18:35:19","date_gmt":"2026-10-05T10:35:19","guid":{"rendered":"http:\/\/www.520gz.cn\/?p=152"},"modified":"2026-10-05T18:35:19","modified_gmt":"2026-10-05T10:35:19","slug":"%e7%ac%ac%e4%b8%89%e7%ab%a0-%e4%bd%bf%e7%94%a8%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"http:\/\/www.520gz.cn\/index.php\/2026\/10\/05\/%e7%ac%ac%e4%b8%89%e7%ab%a0-%e4%bd%bf%e7%94%a8%e5%88%97%e8%a1%a8\/","title":{"rendered":"\u7b2c\u4e09\u7ae0 \u4f7f\u7528\u5217\u8868"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">1.1 \u5217\u8868\u7528 append \u548c extend \u6dfb\u52a0\u5143\u7d20\u7684\u7528\u6cd5\u548c\u533a\u522b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001extend() \u4e3b\u8981\u662f \u5217\u8868\uff08list\uff09 \u7684\u65b9\u6cd5\uff0c\u7528\u6765\u628a\u53e6\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u4e2d\u7684\u5143\u7d20\u9010\u4e2a\u8ffd\u52a0\u5230\u5217\u8868\u672b \u5c3e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bed\u6cd5<br>list.extend(iterable)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">iterable\uff1a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u5982\u5217\u8868\u3001\u5143\u7ec4\u3001\u5b57\u7b26\u4e32\u3001\u96c6\u5408\u3001\u5b57\u5178\u3001range\u3001\u751f\u6210\u5668\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u539f\u5730\u4fee\u6539\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u503c\u662f None\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u548c append \u7684\u533a\u522b<br>append() \u628a\u6574\u4e2a\u5bf9\u8c61\u5f53\u4f5c\u4e00\u4e2a\u5143\u7d20\u6dfb\u52a0\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a = [1, 2]<br>a.append([3, 4])<br>print(a) # [1, 2, [3, 4]]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001extend() \u4f1a\u628a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u62c6\u5f00\uff0c\u9010\u4e2a\u6dfb\u52a0\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a = [1, 2]<br>a.extend([3, 4])<br>print(a) # [1, 2, 3, 4]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001\u6dfb\u52a0\u5b57\u7b26\u4e32\u65f6\u7684\u6ce8\u610f\u70b9<br>a = []<br>a.extend(&#8220;abc&#8221;)<br>print(a) # [&#8216;a&#8217;, &#8216;b&#8217;, &#8216;c&#8217;]<br>\u56e0\u4e3a\u5b57\u7b26\u4e32\u4e5f\u662f\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u4f1a\u88ab\u62c6\u6210\u5b57\u7b26\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5\u3001\u5982\u679c\u4f60\u60f3\u628a\u6574\u4e2a\u5b57\u7b26\u4e32\u4f5c\u4e3a\u4e00\u4e2a\u5143\u7d20\uff0c\u5e94\u8be5\u7528 append()\uff1a<br>a = []<br>a.append(&#8220;abc&#8221;)<br>print(a) # [&#8216;abc&#8217;]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6\u3001\u6dfb\u52a0\u5b57\u5178\u65f6<br>a = []<br>a.extend({&#8220;name&#8221;: &#8220;Tom&#8221;, &#8220;age&#8221;: 18})<br>print(a) # [&#8216;name&#8217;, &#8216;age&#8217;]<br>\u9ed8\u8ba4\u6dfb\u52a0\u7684\u662f\u5b57\u5178\u7684 \u952e\uff0c\u4e0d\u662f\u952e\u503c\u5bf9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">7\u3001\u548c +\u3001+= \u7684\u533a\u522b<br>a = [1, 2]<br>b = [3, 4]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c = a + b<br>print(c) # [1, 2, 3, 4]<br>print(a) # [1, 2]\uff0ca \u6ca1\u53d8<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a = [1, 2]<br>b = [3, 4]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a += b<br>print(a) # [1, 2, 3, 4]<br>a += b \u901a\u5e38\u7b49\u4ef7\u4e8e a.extend(b)\uff0c\u4e5f\u662f\u539f\u5730\u4fee\u6539\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">8\u3001extend() \u8fd4\u56de None\uff0c\u4e0d\u8981\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a = [1, 2]<br>a = a.extend([3, 4])<br>print(a) # None<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u786e\u5199\u6cd5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a = [1, 2]<br>a.extend([3, 4])<br>print(a) # [1, 2, 3, 4]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f20\u5165\u4e0d\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u4f1a\u62a5\u9519\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a = [1, 2]<br>a.extend(3) # TypeError: &#8216;int&#8217; object is not iterable<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"566\" src=\"http:\/\/www.520gz.cn\/wp-content\/uploads\/2026\/10\/append-extend-\u5f00\u7528\u6cd5-1024x566.png\" alt=\"\" class=\"wp-image-153\" srcset=\"http:\/\/www.520gz.cn\/wp-content\/uploads\/2026\/10\/append-extend-\u5f00\u7528\u6cd5-1024x566.png 1024w, http:\/\/www.520gz.cn\/wp-content\/uploads\/2026\/10\/append-extend-\u5f00\u7528\u6cd5-300x166.png 300w, http:\/\/www.520gz.cn\/wp-content\/uploads\/2026\/10\/append-extend-\u5f00\u7528\u6cd5-768x425.png 768w, http:\/\/www.520gz.cn\/wp-content\/uploads\/2026\/10\/append-extend-\u5f00\u7528\u6cd5-1536x849.png 1536w, http:\/\/www.520gz.cn\/wp-content\/uploads\/2026\/10\/append-extend-\u5f00\u7528\u6cd5.png 1852w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>1.1 \u5217\u8868\u7528 append \u548c extend \u6dfb\u52a0\u5143\u7d20\u7684\u7528\u6cd5\u548c\u533a\u522b 1\u3001extend() \u4e3b\u8981\u662f \u5217\u8868\uff08li [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-152","post","type-post","status-publish","format-standard","category-python-","czr-hentry"],"_links":{"self":[{"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/posts\/152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/comments?post=152"}],"version-history":[{"count":1,"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/posts\/152\/revisions"}],"predecessor-version":[{"id":154,"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/posts\/152\/revisions\/154"}],"wp:attachment":[{"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/media?parent=152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/categories?post=152"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.520gz.cn\/index.php\/wp-json\/wp\/v2\/tags?post=152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}