<\/p>\n
Python \u4e2d\u7684 Lambda \u51fd\u6578\u662f\u4e00\u7a2e\u7c21\u55ae\u800c\u5f37\u5927\u7684\u529f\u80fd\uff0c\u5141\u8a31\u6211\u5011\u5728\u4e0d\u5b9a\u7fa9\u5b8c\u6574\u51fd\u6578\u7684\u60c5\u6cc1\u4e0b\uff0c\u5c07\u7a0b\u5f0f\u78bc\u7c21\u5316\u70ba\u4e00\u884c\u3002\u9019\u7a2e\u51fd\u6578\u7279\u5225\u9069\u5408\u65bc\u4e00\u4e9b\u7c21\u55ae\u7684\u64cd\u4f5c\uff0c\u6bd4\u5982\u5728\u5167\u5efa\u51fd\u6578\u4e2d\u4f7f\u7528\uff0c\u5982 `map()`\u3001`filter()` \u548c `reduce()`\u3002<\/p>\n
## Lambda \u51fd\u6578\u7684\u8a9e\u6cd5<\/p>\n
Lambda \u51fd\u6578\u7684\u8a9e\u6cd5\u975e\u5e38\u7c21\u55ae\uff0c\u9069\u7528\u65bc\u55ae\u884c\u8868\u9054\u5f0f\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
“`python
\nlambda arguments: expression
\n“`<\/p>\n
### \u53c3\u6578<\/p>\n
Lambda \u51fd\u6578\u7684\u53c3\u6578\u53ef\u4ee5\u662f\u55ae\u500b\u6216\u591a\u500b\uff0c\u4e14\u8868\u9054\u5f0f\u53ef\u4ee5\u662f\u4efb\u4f55\u6709\u6548\u7684 Python \u8868\u9054\u5f0f\uff0c\u6703\u5728\u51fd\u6578\u57f7\u884c\u6642\u88ab\u8a55\u4f30\u3002<\/p>\n
### \u5be6\u4f5c\u7bc4\u4f8b<\/p>\n
#### 1. \u57fa\u672c\u7684 Lambda \u51fd\u6578<\/p>\n
\u8209\u500b\u4f8b\u5b50\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u8981\u5b9a\u7fa9\u4e00\u500b\u51fd\u6578\uff0c\u5c07\u5169\u500b\u6578\u5b57\u76f8\u52a0\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b Lambda \u51fd\u6578\u4f86\u5be6\u73fe\uff1a<\/p>\n
“`python
\nadd = lambda x, y: x + y
\n“`<\/p>\n
\u73fe\u5728\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u51fd\u6578\u4f86\u5c07\u5169\u500b\u6578\u5b57\u76f8\u52a0\uff1a<\/p>\n
“`python
\nresult = add(5, 3)
\nprint(result) # \u8f38\u51fa\uff1a8
\n“`<\/p>\n
#### 2. \u4f7f\u7528 Lambda \u51fd\u6578\u7684 `map()`<\/p>\n
Lambda \u51fd\u6578\u975e\u5e38\u9069\u5408\u7528\u65bc\u5167\u5efa\u51fd\u6578\uff0c\u5982 `map()`\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u5217\u8868\uff0c\u6211\u5011\u60f3\u8981\u5c07\u6bcf\u500b\u5143\u7d20\u90fd\u52a0\u4e0a 10\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u5be6\u73fe\uff1a<\/p>\n
“`python
\nnums = [1, 2, 3, 4, 5]\nresult = list(map(lambda x: x + 10, nums))
\nprint(result) # \u8f38\u51fa\uff1a[11, 12, 13, 14, 15]\n“`<\/p>\n
#### 3. \u4f7f\u7528 Lambda \u51fd\u6578\u7684 `filter()`<\/p>\n
\u53e6\u4e00\u500b\u4f8b\u5b50\u662f\u4f7f\u7528 `filter()` \u4f86\u7be9\u9078\u51fa\u6240\u6709\u5076\u6578\uff1a<\/p>\n
“`python
\nnums = [1, 2, 3, 4, 5]\nresult = list(filter(lambda x: x % 2 == 0, nums))
\nprint(result) # \u8f38\u51fa\uff1a[2, 4]\n“`<\/p>\n
### \u932f\u8aa4\u6392\u9664<\/p>\n
\u7576\u4f7f\u7528 Lambda \u51fd\u6578\u6642\uff0c\u5e38\u898b\u7684\u932f\u8aa4\u5305\u62ec\uff1a
\n– **SyntaxError**\uff1a\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u8a9e\u6cd5\uff0c\u7279\u5225\u662f\u5192\u865f\u548c\u7a7a\u683c\u3002
\n– **TypeError**\uff1a\u7576\u50b3\u905e\u4e0d\u6b63\u78ba\u7684\u53c3\u6578\u6578\u91cf\u6642\uff0c\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u8acb\u6aa2\u67e5 Lambda \u51fd\u6578\u7684\u53c3\u6578\u662f\u5426\u8207\u8abf\u7528\u6642\u7684\u4e00\u81f4\u3002<\/p>\n
### \u5ef6\u4f38\u61c9\u7528<\/p>\n
Lambda \u51fd\u6578\u53ef\u4ee5\u8207\u5176\u4ed6 Python \u7279\u6027\u7d50\u5408\u4f7f\u7528\uff0c\u4f8b\u5982\u5217\u8868\u63a8\u5c0e\u5f0f\u3002\u900f\u904e\u7d50\u5408\u9019\u4e9b\u8a9e\u6cd5\uff0c\u60a8\u53ef\u4ee5\u7de8\u5beb\u51fa\u66f4\u7c21\u6f54\u4e14\u9ad8\u6548\u7684\u7a0b\u5f0f\u78bc\u3002<\/p>\n
### \u9032\u4e00\u6b65\u5b78\u7fd2<\/p>\n
\u82e5\u60a8\u60f3\u6df1\u5165\u4e86\u89e3\u95dc\u65bc Python \u7684\u66f4\u591a\u6559\u5b78\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7 [Python \u6559\u5b78\u6587\u7ae0](https:\/\/vocus.cc\/article\/605b3dcd18c7d20001b9b0a2) \u4f86\u64f4\u5c55\u60a8\u7684\u77e5\u8b58\u3002<\/p>\n
\u7e3d\u7d50\u4f86\u8aaa\uff0cPython \u4e2d\u7684 Lambda \u51fd\u6578\u662f\u4e00\u7a2e\u7c21\u55ae\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u9032\u884c\u7c21\u55ae\u7684\u64cd\u4f5c\uff0c\u7279\u5225\u662f\u5728\u4e0d\u60f3\u5b9a\u7fa9\u5168\u529f\u80fd\u51fd\u6578\u7684\u60c5\u6cc1\u4e0b\u3002\u5b83\u4f7f\u5f97\u7a0b\u5f0f\u78bc\u66f4\u52a0\u7c21\u6f54\uff0c\u6709\u52a9\u65bc\u63d0\u5347\u7de8\u78bc\u6548\u7387\u3002<\/p>\n
## Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/p>\n
**Q1: Lambda \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u54ea\u4e9b\u60c5\u6cc1\uff1f**
\nA1: Lambda \u51fd\u6578\u9069\u7528\u65bc\u9700\u8981\u5feb\u901f\u5b9a\u7fa9\u7c21\u55ae\u529f\u80fd\u7684\u60c5\u6cc1\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528 `map()`\u3001`filter()` \u548c `reduce()` \u7b49\u5167\u5efa\u51fd\u6578\u6642\u3002<\/p>\n
**Q2: Lambda \u51fd\u6578\u7684\u9650\u5236\u662f\u4ec0\u9ebc\uff1f**
\nA2: Lambda \u51fd\u6578\u53ea\u80fd\u5305\u542b\u55ae\u4e00\u8868\u9054\u5f0f\uff0c\u7121\u6cd5\u4f7f\u7528\u591a\u884c\u8a9e\u53e5\uff0c\u9019\u9650\u5236\u4e86\u5b83\u7684\u529f\u80fd\u3002<\/p>\n
**Q3: \u5982\u4f55\u8abf\u8a66 Lambda \u51fd\u6578\uff1f**
\nA3: \u7576 Lambda \u51fd\u6578\u5f15\u767c\u932f\u8aa4\u6642\uff0c\u60a8\u53ef\u4ee5\u9010\u6b65\u6aa2\u67e5\u53c3\u6578\u7684\u985e\u578b\u548c\u6578\u91cf\uff0c\u4e26\u78ba\u4fdd\u8a9e\u6cd5\u6b63\u78ba\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
Lambda\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u7a2e\u7c21\u55ae\u800c\u5f37\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u60a8\u5728\u7a0b\u5e8f\u4e2d\u66f4\u5feb\u901f\u5730\u5b8c\u6210\u66f4\u591a\u4efb\u52d9\u3002\u672c\u6587\u5c07\u4ecb\u7d39Lambda\u51fd\u6578\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u63d0\u9ad8\u60a8\u7684Python\u7a0b\u5e8f\u7684\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","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":[15],"class_list":["post-3196","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-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-Py","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3196","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=3196"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3196\/revisions"}],"predecessor-version":[{"id":3197,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3196\/revisions\/3197"}],"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=3196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}