<\/p>\n
\u5728 Python \u4e2d\uff0c\u4e32\u5217 (List) \u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u53ef\u4ee5\u5132\u5b58\u591a\u500b\u5143\u7d20\u4e26\u4f7f\u7528\u7d22\u5f15\u4f86\u53d6\u5f97\u9019\u4e9b\u5143\u7d20\u3002`count()` \u51fd\u5f0f\u662f\u4e00\u500b\u5341\u5206\u6709\u7528\u7684\u5de5\u5177\uff0c\u5b83\u80fd\u8b93\u4f60\u5feb\u901f\u7372\u5f97\u4e32\u5217\u4e2d\u67d0\u500b\u5143\u7d20\u51fa\u73fe\u7684\u6b21\u6578\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7a0b\u5f0f\u7684\u6548\u7387\uff0c\u9084\u80fd\u7c21\u5316\u8cc7\u6599\u5206\u6790\u7684\u904e\u7a0b\u3002<\/p>\n
### \u4f7f\u7528 `count()` \u51fd\u5f0f\u7684\u57fa\u672c\u8a9e\u6cd5<\/p>\n
`count()` \u51fd\u5f0f\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a
\n“`python
\nlist.count(element)
\n“`
\n\u9019\u500b\u51fd\u5f0f\u6703\u8fd4\u56de `element` \u5728\u4e32\u5217\u4e2d\u51fa\u73fe\u7684\u6b21\u6578\u3002<\/p>\n
### \u5be6\u4f5c\u7bc4\u4f8b<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 `count()` \u51fd\u5f0f\u7684\u5be6\u4f5c\u7bc4\u4f8b\uff1a<\/p>\n
“`python
\nlist1 = [1, 2, 3, 4, 5, 1, 2, 3, 4, 5]\n
# \u53d6\u5f971\u51fa\u73fe\u7684\u6b21\u6578
\ncount1 = list1.count(1)<\/p>\n
# \u53d6\u5f972\u51fa\u73fe\u7684\u6b21\u6578
\ncount2 = list1.count(2)<\/p>\n
# \u53d6\u5f973\u51fa\u73fe\u7684\u6b21\u6578
\ncount3 = list1.count(3)<\/p>\n
# \u53d6\u5f974\u51fa\u73fe\u7684\u6b21\u6578
\ncount4 = list1.count(4)<\/p>\n
# \u53d6\u5f975\u51fa\u73fe\u7684\u6b21\u6578
\ncount5 = list1.count(5)<\/p>\n
print(f”1 \u51fa\u73fe\u7684\u6b21\u6578\uff1a{count1}”) # \u8f38\u51fa 2
\nprint(f”2 \u51fa\u73fe\u7684\u6b21\u6578\uff1a{count2}”) # \u8f38\u51fa 2
\nprint(f”3 \u51fa\u73fe\u7684\u6b21\u6578\uff1a{count3}”) # \u8f38\u51fa 2
\nprint(f”4 \u51fa\u73fe\u7684\u6b21\u6578\uff1a{count4}”) # \u8f38\u51fa 2
\nprint(f”5 \u51fa\u73fe\u7684\u6b21\u6578\uff1a{count5}”) # \u8f38\u51fa 2
\n“`<\/p>\n
\u5728\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u5efa\u7acb\u4e86\u4e00\u500b\u4e32\u5217 `list1`\uff0c\u4e26\u4f7f\u7528 `count()` \u51fd\u5f0f\u53d6\u5f97\u6bcf\u500b\u5143\u7d20\u51fa\u73fe\u7684\u6b21\u6578\u3002\u6700\u5f8c\uff0c\u900f\u904e `print()` \u51fd\u5f0f\u8f38\u51fa\u7d50\u679c\uff0c\u986f\u793a\u6bcf\u500b\u5143\u7d20\u51fa\u73fe\u7684\u6b21\u6578\u90fd\u662f 2\u3002<\/p>\n
### \u932f\u8aa4\u6392\u9664<\/p>\n
\u82e5\u4f60\u5728\u4f7f\u7528 `count()` \u51fd\u5f0f\u6642\u9047\u5230\u554f\u984c\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n
1. **\u5143\u7d20\u4e0d\u5728\u4e32\u5217\u4e2d**\uff1a\u5982\u679c\u4f60\u67e5\u8a62\u7684\u5143\u7d20\u4e0d\u5728\u4e32\u5217\u4e2d\uff0c`count()` \u6703\u8fd4\u56de 0\u3002
\n – **\u89e3\u6c7a\u65b9\u6848**\uff1a\u78ba\u8a8d\u5143\u7d20\u78ba\u5be6\u5b58\u5728\u65bc\u4e32\u5217\u4e2d\u3002<\/p>\n
2. **\u8cc7\u6599\u578b\u5225\u4e0d\u5339\u914d**\uff1a\u4f8b\u5982\uff0c\u4f60\u53ef\u80fd\u6703\u8a66\u5716\u67e5\u8a62\u4e00\u500b\u5b57\u4e32\uff0c\u4f46\u4e32\u5217\u4e2d\u5132\u5b58\u7684\u537b\u662f\u6574\u6578\u3002
\n – **\u89e3\u6c7a\u65b9\u6848**\uff1a\u78ba\u4fdd\u4f60\u67e5\u8a62\u7684\u5143\u7d20\u8207\u4e32\u5217\u4e2d\u7684\u8cc7\u6599\u578b\u5225\u4e00\u81f4\u3002<\/p>\n
### \u5ef6\u4f38\u61c9\u7528<\/p>\n
`count()` \u51fd\u5f0f\u7684\u61c9\u7528\u7bc4\u570d\u975e\u5e38\u5ee3\u6cdb\uff0c\u7279\u5225\u662f\u5728\u8cc7\u6599\u5206\u6790\u548c\u7d71\u8a08\u7684\u9818\u57df\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u5b83\u4f86\u5206\u6790\u7528\u6236\u884c\u70ba\u3001\u8a08\u7b97\u983b\u7387\u7b49\u3002<\/p>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5206\u6790\u4e00\u500b\u4f7f\u7528\u8005\u9ede\u64ca\u7684\u9805\u76ee\uff0c\u4f60\u53ef\u4ee5\u5c07\u9019\u4e9b\u9805\u76ee\u5132\u5b58\u70ba\u4e32\u5217\uff0c\u7136\u5f8c\u4f7f\u7528 `count()` \u7372\u5f97\u6bcf\u500b\u9805\u76ee\u7684\u9ede\u64ca\u6b21\u6578\uff0c\u9032\u800c\u512a\u5316\u4f60\u7684\u7db2\u7ad9\u5167\u5bb9\u3002<\/p>\n
### \u53c3\u8003\u8cc7\u6599<\/p>\n
\u82e5\u60f3\u6df1\u5165\u5b78\u7fd2 Python \u7684\u5176\u4ed6\u57fa\u672c\u8a9e\u6cd5\u548c\u51fd\u5f0f\uff0c\u5efa\u8b70\u67e5\u770b [\u9019\u88e1\u7684\u6559\u5b78](https:\/\/vocus.cc\/article\/640f1d4dfd9a5e001c9b8d7a)\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u64f4\u5c55\u5c0d Python \u7684\u7406\u89e3\u3002<\/p>\n
### Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/p>\n
**Q1: `count()` \u51fd\u5f0f\u7684\u8fd4\u56de\u503c\u70ba\u4f55?**
\nA1: `count()` \u51fd\u5f0f\u8fd4\u56de\u6307\u5b9a\u5143\u7d20\u5728\u4e32\u5217\u4e2d\u51fa\u73fe\u7684\u6b21\u6578\u3002\u5982\u679c\u5143\u7d20\u4e0d\u5728\u4e32\u5217\u4e2d\uff0c\u5247\u8fd4\u56de 0\u3002<\/p>\n
**Q2: `count()` \u51fd\u5f0f\u53ef\u4ee5\u7528\u65bc\u5176\u4ed6\u8cc7\u6599\u7d50\u69cb\u55ce?**
\nA2: `count()` \u51fd\u5f0f\u662f\u5c08\u9580\u70ba\u4e32\u5217\u8a2d\u8a08\u7684\uff0c\u5c0d\u65bc\u5176\u4ed6\u8cc7\u6599\u7d50\u69cb\uff08\u5982\u96c6\u5408\u6216\u5b57\u5178\uff09\uff0c\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u65b9\u6cd5\u4f86\u8a08\u7b97\u5143\u7d20\u7684\u51fa\u73fe\u6b21\u6578\u3002<\/p>\n
**Q3: \u5982\u4f55\u7372\u53d6\u591a\u500b\u5143\u7d20\u7684\u51fa\u73fe\u6b21\u6578?**
\nA3: \u4f60\u53ef\u4ee5\u4f7f\u7528\u8ff4\u5708\u4f86\u904d\u6b77\u60f3\u8981\u67e5\u8a62\u7684\u5143\u7d20\uff0c\u4e26\u5c0d\u6bcf\u500b\u5143\u7d20\u4f7f\u7528 `count()` \u51fd\u5f0f\u4f86\u7372\u53d6\u5176\u51fa\u73fe\u6b21\u6578\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
Python \u4e32\u5217 (List) count() …<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"open","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":[],"class_list":["post-2605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-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-G1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2605","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=2605"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2605\/revisions"}],"predecessor-version":[{"id":2607,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2605\/revisions\/2607"}],"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=2605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}