{"id":2850,"date":"2025-06-03T16:55:43","date_gmt":"2025-06-04T09:36:43","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=2850"},"modified":"2025-06-04T16:55:43","modified_gmt":"2025-06-04T09:36:43","slug":"%e4%bd%bf%e7%94%a8python%e7%9a%84dict%e5%87%bd%e6%95%b8%e5%b0%87%e5%ba%8f%e5%88%97%e8%bd%89%e6%8f%9b%e7%82%ba%e5%ad%97%e5%85%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%bd%bf%e7%94%a8python%e7%9a%84dict%e5%87%bd%e6%95%b8%e5%b0%87%e5%ba%8f%e5%88%97%e8%bd%89%e6%8f%9b%e7%82%ba%e5%ad%97%e5%85%b8\/","title":{"rendered":"\u4f7f\u7528 Python \u7684 dict() \u51fd\u6578\u5c07\u5e8f\u5217\u8f49\u63db\u70ba\u5b57\u5178\uff1a2025 \u6700\u65b0\u6559\u5b78\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

\u4f7f\u7528 Python \u7684 dict() \u51fd\u6578\u5c07\u5b57\u7b26\u4e32\u6216\u5176\u4ed6\u5e8f\u5217\u8f49\u63db\u70ba\u5b57\u5178<\/h1>\n

\u5728 Python \u4e2d\uff0c`dict()` \u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5c07\u5b57\u7b26\u4e32\u6216\u5176\u4ed6\u5e8f\u5217\u8f49\u63db\u70ba\u5b57\u5178\u3002\u9019\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728\u8cc7\u6599\u8655\u7406\u548c\u5206\u6790\u4e2d\uff0c\u53ef\u4ee5\u8b93\u6211\u5011\u8fc5\u901f\u5730\u5c07\u8cc7\u6599\u4ee5\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u7d44\u7e54\u8d77\u4f86\u3002<\/p>\n

dict() \u51fd\u6578\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n

`dict()` \u51fd\u6578\u7684\u57fa\u672c\u7528\u6cd5\u662f\u5c07\u5b57\u7b26\u4e32\u6216\u5176\u4ed6\u5e8f\u5217\u8f49\u63db\u70ba\u5b57\u5178\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u7528\u6cd5\u793a\u4f8b\uff1a<\/p>\n

**\u5c07\u5b57\u7b26\u4e32\u8f49\u63db\u70ba\u5b57\u5178\uff1a**<\/p>\n

“`python
\nmy_string = “a:1,b:2,c:3”
\nmy_dict = dict(x.split(“:”) for x in my_string.split(“,”))
\nprint(my_dict)
\n“`
\n\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u5c07\u5b57\u7b26\u4e32\u8f49\u63db\u70ba\u5b57\u5178\uff0c\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n

“`
\n{‘a’: ‘1’, ‘b’: ‘2’, ‘c’: ‘3’}
\n“`<\/p>\n

**\u5c07\u5217\u8868\u8f49\u63db\u70ba\u5b57\u5178\uff1a**<\/p>\n

“`python
\nmy_list = [(“a”, 1), (“b”, 2), (“c”, 3)]\nmy_dict = dict(my_list)
\nprint(my_dict)
\n“`
\n\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u5c07\u5217\u8868\u8f49\u63db\u70ba\u5b57\u5178\uff0c\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n

“`
\n{‘a’: 1, ‘b’: 2, ‘c’: 3}
\n“`<\/p>\n

dict() \u51fd\u6578\u7684\u61c9\u7528<\/h2>\n

`dict()` \u51fd\u6578\u4e0d\u50c5\u53ef\u4ee5\u8f49\u63db\u8cc7\u6599\u985e\u578b\uff0c\u9084\u53ef\u4ee5\u9032\u4e00\u6b65\u64cd\u4f5c\u5b57\u5178\u4e2d\u7684\u8cc7\u6599\uff0c\u4f8b\u5982\uff1a<\/p>\n

**\u5c0d\u5b57\u5178\u4e2d\u7684\u6578\u503c\u9032\u884c\u64cd\u4f5c\uff1a**<\/p>\n

“`python
\nmy_string = “a:1,b:2,c:3”
\nmy_dict = dict(x.split(“:”) for x in my_string.split(“,”))<\/p>\n

# \u5c0d\u5b57\u5178\u9032\u884c\u64cd\u4f5c\uff0c\u5c07\u6bcf\u500b\u503c\u52a0\u4e00
\nfor key, value in my_dict.items():
\n my_dict[key] = int(value) + 1<\/p>\n

print(my_dict)
\n“`
\n\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n

“`
\n{‘a’: 2, ‘b’: 3, ‘c’: 4}
\n“`<\/p>\n

\u540c\u6a23\u5730\uff0c\u6211\u5011\u4e5f\u53ef\u4ee5\u5c0d\u5f9e\u5217\u8868\u8f49\u63db\u4f86\u7684\u5b57\u5178\u9032\u884c\u985e\u4f3c\u64cd\u4f5c\uff1a<\/p>\n

“`python
\nmy_list = [(“a”, 1), (“b”, 2), (“c”, 3)]\nmy_dict = dict(my_list)<\/p>\n

# \u5c0d\u5b57\u5178\u4e2d\u7684\u503c\u9032\u884c\u64cd\u4f5c
\nfor key, value in my_dict.items():
\n my_dict[key] = value + 1<\/p>\n

print(my_dict)
\n“`
\n\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n

“`
\n{‘a’: 2, ‘b’: 3, ‘c’: 4}
\n“`<\/p>\n

\u9019\u4e9b\u7bc4\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5229\u7528 `dict()` \u51fd\u6578\u6709\u6548\u5730\u8655\u7406\u8cc7\u6599\uff0c\u4f7f\u5176\u66f4\u52a0\u5bb9\u6613\u7ba1\u7406\u548c\u64cd\u4f5c\u3002\u60f3\u8981\u9032\u4e00\u6b65\u4e86\u89e3 Python \u4e2d\u5b57\u5178\u7684\u5176\u4ed6\u61c9\u7528\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7[Python \u5b57\u5178\u7684\u9032\u968e\u61c9\u7528](https:\/\/vocus.cc\/article\/60ca1f4e1e2b8e001c38280c)\u6559\u5b78\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664<\/h2>\n

\u5728\u4f7f\u7528 `dict()` \u51fd\u6578\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e7e\u500b\u5e38\u898b\u932f\u8aa4\uff1a<\/p>\n

1. **KeyError**\uff1a\u7576\u4f60\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u9375\u6642\uff0c\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u78ba\u4fdd\u5728\u8a2a\u554f\u9375\u4e4b\u524d\uff0c\u8a72\u9375\u5df2\u7d93\u5b58\u5728\u65bc\u5b57\u5178\u4e2d\u3002
\n2. **ValueError**\uff1a\u5982\u679c\u5b57\u7b26\u4e32\u7684\u683c\u5f0f\u4e0d\u6b63\u78ba\uff08\u4f8b\u5982\uff0c\u7f3a\u5c11\u5206\u9694\u7b26\uff09\uff0c\u5c07\u5c0e\u81f4\u8f49\u63db\u5931\u6557\u3002\u6aa2\u67e5\u5b57\u7b26\u4e32\u683c\u5f0f\u662f\u5426\u7b26\u5408\u9810\u671f\u3002
\n3. **TypeError**\uff1a\u7576\u4f60\u5617\u8a66\u4f7f\u7528\u4e0d\u652f\u6301\u7684\u8cc7\u6599\u985e\u578b\uff08\u5982\u5217\u8868\u7684\u5217\u8868\uff09\u6642\uff0c\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u78ba\u4fdd\u4f7f\u7528\u7684\u8cc7\u6599\u7d50\u69cb\u7b26\u5408 `dict()` \u51fd\u6578\u7684\u8981\u6c42\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86 Python \u7684 `dict()` \u51fd\u6578\uff0c\u9019\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5feb\u901f\u5730\u5c07\u5b57\u7b26\u4e32\u6216\u5176\u4ed6\u5e8f\u5217\u8f49\u63db\u70ba\u5b57\u5178\uff0c\u4e26\u9032\u884c\u5404\u7a2e\u64cd\u4f5c\u3002\u638c\u63e1\u9019\u4e00\u6280\u80fd\uff0c\u5c07\u6709\u52a9\u65bc\u4f60\u5728 Python \u7684\u8cc7\u6599\u8655\u7406\u4e2d\u66f4\u52a0\u5f97\u5fc3\u61c9\u624b\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

**Q1: \u5982\u4f55\u5c07\u4e00\u500b\u5b57\u5178\u7684\u9375\u503c\u5c0d\u53cd\u8f49\uff1f**
\nA1: \u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u63a8\u5c0e\u5f0f\u4f86\u53cd\u8f49\u9375\u503c\u5c0d\uff0c\u4f8b\u5982\uff1a
\n“`python
\nmy_dict = {‘a’: 1, ‘b’: 2, ‘c’: 3}
\nreversed_dict = {v: k for k, v in my_dict.items()}
\n“`<\/p>\n

**Q2: dict() \u51fd\u6578\u652f\u6301\u54ea\u4e9b\u8cc7\u6599\u985e\u578b\uff1f**
\nA2: `dict()` \u51fd\u6578\u652f\u6301\u4efb\u4f55\u53ef\u8fed\u4ee3\u7684\u5c0d\u8c61\uff0c\u9019\u5305\u62ec\u5217\u8868\u3001\u5143\u7d44\u7b49\uff0c\u53ea\u8981\u5b83\u5011\u7684\u6bcf\u500b\u5143\u7d20\u90fd\u662f\u4e8c\u5143\u7d44\uff08key-value \u914d\u5c0d\uff09\u3002<\/p>\n

**Q3: \u5982\u4f55\u6aa2\u67e5\u5b57\u5178\u4e2d\u662f\u5426\u5b58\u5728\u67d0\u500b\u9375\uff1f**
\nA3: \u53ef\u4ee5\u4f7f\u7528 `in` \u95dc\u9375\u5b57\u4f86\u6aa2\u67e5\uff0c\u4f8b\u5982\uff1a
\n“`python
\nif ‘a’ in my_dict:
\n print(“\u9375 ‘a’ \u5b58\u5728\u65bc\u5b57\u5178\u4e2d”)
\n“`
\n—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Python\u7684dict()\u51fd\u6578\u5c07\u5b57\u7b26\u4e32\u6216\u5176\u4ed6\u5e8f\u5217\u8f49\u63db\u70ba\u5b57\u5178\uff0c\u4ee5\u4fbf\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39dict()\u51fd\u6578\u7684\u7528\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4f86\u89e3\u91cb\u5982\u4f55\u4f7f\u7528\u5b83\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-2850","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-JY","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2850","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=2850"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2850\/revisions"}],"predecessor-version":[{"id":13020,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2850\/revisions\/13020"}],"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=2850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}