{"id":4081,"date":"2025-06-01T11:39:21","date_gmt":"2025-06-05T04:07:21","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4081"},"modified":"2025-06-05T11:39:21","modified_gmt":"2025-06-05T04:07:21","slug":"%e8%a7%a3%e6%9e%90swift%e4%b8%ad%e6%a8%a1%e7%b3%8a%e5%bc%95%e7%94%a8%e6%88%90%e5%93%a1y%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/%e8%a7%a3%e6%9e%90swift%e4%b8%ad%e6%a8%a1%e7%b3%8a%e5%bc%95%e7%94%a8%e6%88%90%e5%93%a1y%e7%9a%84%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u89e3\u6c7a Swift \u7a0b\u5f0f\u4e2d\u7684\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4\uff1a2025 \u5e74\u6700\u65b0\u65b9\u6cd5\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

\u89e3\u6c7a Swift \u7a0b\u5f0f\u4e2d\u7684\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4<\/h1>\n

Swift \u662f\u4e00\u7a2e\u5f37\u5927\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u5feb\u901f\u958b\u767c\u9ad8\u6548\u7684\u61c9\u7528\u7a0b\u5f0f\u3002\u7136\u800c\uff0c\u5728\u958b\u767c\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u300cAmbiguous reference to member ‘Y’\u300d\u662f\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\u8a0a\u606f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\uff0c\u4e26\u63d0\u4f9b 2025 \u5e74\u6700\u65b0\u7684\u89e3\u6c7a\u65b9\u6848\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4\uff1f<\/h2>\n

\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4\u662f Swift \u7de8\u8b6f\u5668\u5728\u7de8\u8b6f\u6642\u51fa\u73fe\u7684\u4e00\u500b\u932f\u8aa4\uff0c\u5b83\u8868\u793a\u7de8\u8b6f\u5668\u7121\u6cd5\u6c7a\u5b9a\u61c9\u8a72\u4f7f\u7528\u54ea\u500b\u6210\u54e1\u8b8a\u91cf\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u6703\u5728\u4f7f\u7528\u540c\u540d\u7684\u6210\u54e1\u8b8a\u91cf\u6642\u767c\u751f\uff0c\u4ee5\u4e0b\u662f\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

\nstruct Foo {\n    var x: Int\n    var y: Int\n}\n\nlet foo = Foo(x: 1, y: 2)\nlet y = foo.y \/\/ \u7de8\u8b6f\u5668\u7121\u6cd5\u78ba\u5b9a\u4f7f\u7528\u54ea\u500b y\n<\/pre>\n
\u5728\u9019\u6bb5\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba Foo \u7684\u7d50\u69cb\uff0c\u64c1\u6709\u5169\u500b\u6210\u54e1\u8b8a\u91cf x \u548c y\u3002\u7136\u5f8c\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b Foo \u7684\u5be6\u4f8b\uff0c\u4e26\u5c07 y \u8ce6\u503c\u7d66\u4e00\u500b\u540c\u540d\u7684\u8b8a\u91cf\u3002\u7531\u65bc\u547d\u540d\u885d\u7a81\uff0c\u7de8\u8b6f\u5668\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u8a72\u8b8a\u91cf\uff0c\u5f9e\u800c\u7522\u751f\u932f\u8aa4\u3002<\/p>\n
\u5982\u4f55\u89e3\u6c7a\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4\uff1f<\/h2>\n
\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u89e3\u6c7a\u6b64\u932f\u8aa4\u7684\u6709\u6548\u65b9\u6cd5\uff1a<\/p>\n
1. \u4f7f\u7528\u4e0d\u540c\u7684\u8b8a\u91cf\u540d\u7a31<\/h3>\n
\u6700\u7c21\u55ae\u7684\u65b9\u6cd5\u662f\u66f4\u6539\u8b8a\u91cf\u540d\u7a31\uff0c\u4ee5\u907f\u514d\u8207\u6210\u54e1\u8b8a\u91cf\u540d\u7a31\u885d\u7a81\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c07 y \u8b8a\u91cf\u6539\u70ba fooY\uff1a<\/p>\n
\nstruct Foo {\n    var x: Int\n    var y: Int\n}\n\nlet foo = Foo(x: 1, y: 2)\nlet fooY = foo.y \/\/ \u4f7f\u7528\u4e0d\u540c\u7684\u540d\u7a31\uff0c\u907f\u514d\u885d\u7a81\n<\/pre>\n
2. \u4f7f\u7528 self \u95dc\u9375\u5b57<\/h3>\n
\u53e6\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\u662f\u4f7f\u7528 self \u95dc\u9375\u5b57\u4f86\u6e05\u695a\u5730\u6307\u660e\u6210\u54e1\u8b8a\u91cf\u7684\u4f86\u6e90\uff1a<\/p>\n
\nstruct Foo {\n    var x: Int\n    var y: Int\n}\n\nlet foo = Foo(x: 1, y: 2)\nlet y = foo.self.y \/\/ \u4f7f\u7528 self \u4f86\u660e\u78ba\u5f15\u7528\u6210\u54e1\u8b8a\u91cf\n<\/pre>\n
3. \u5229\u7528 Swift \u7684\u985e\u578b\u63a8\u65b7\u529f\u80fd<\/h3>\n
\u6b64\u5916\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4f9d\u8cf4 Swift \u7684\u985e\u578b\u63a8\u65b7\u529f\u80fd\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\uff1a<\/p>\n
\nstruct Foo {\n    var x: Int\n    var y: Int\n}\n\nlet foo = Foo(x: 1, y: 2)\nlet y = foo.y \/\/ Swift \u80fd\u5f9e\u4e0a\u4e0b\u6587\u63a8\u65b7\u985e\u578b\n<\/pre>\n
\u5728\u9019\u6bb5\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u7de8\u8b6f\u5668\u6703\u5f9e\u4e0a\u4e0b\u6587\u4e2d\u63a8\u65b7 y \u8b8a\u91cf\u7684\u985e\u578b\uff0c\u5f9e\u800c\u6b63\u78ba\u4f7f\u7528 Foo \u7684 y \u6210\u54e1\u8b8a\u91cf\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u63a2\u8a0e\u4e86 Swift \u4e2d\u7684\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4\uff0c\u4e26\u63d0\u4f9b\u4e86\u4e09\u7a2e\u66f4\u65b0\u7684\u65b9\u6cd5\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\uff1a\u4f7f\u7528\u4e0d\u540c\u7684\u8b8a\u91cf\u540d\u7a31\u3001\u4f7f\u7528 self \u95dc\u9375\u5b57\uff0c\u4ee5\u53ca\u5229\u7528 Swift \u7684\u985e\u578b\u63a8\u65b7\u529f\u80fd\u3002\u900f\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u4f60\u5c07\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u932f\u8aa4\uff0c\u63d0\u5347\u4f60\u7684 Swift \u7a0b\u5f0f\u8a2d\u8a08\u6280\u80fd\u3002<\/p>\n
Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n
Q1: \u70ba\u4ec0\u9ebc\u6703\u51fa\u73fe\u300cAmbiguous reference to member ‘Y’\u300d\u932f\u8aa4\uff1f<\/h3>\n
A1: \u6b64\u932f\u8aa4\u901a\u5e38\u662f\u56e0\u70ba\u8b8a\u91cf\u540d\u7a31\u885d\u7a81\uff0c\u7de8\u8b6f\u5668\u7121\u6cd5\u6c7a\u5b9a\u61c9\u4f7f\u7528\u54ea\u500b\u8b8a\u91cf\uff0c\u901a\u5e38\u767c\u751f\u5728\u540c\u540d\u7684\u6210\u54e1\u8b8a\u91cf\u548c\u5c40\u90e8\u8b8a\u91cf\u4e4b\u9593\u3002<\/p>\n
Q2: \u5982\u4f55\u907f\u514d\u5728 Swift \u4e2d\u51fa\u73fe\u985e\u4f3c\u7684\u547d\u540d\u885d\u7a81\uff1f<\/h3>\n
A2: \u53ef\u4ee5\u70ba\u8b8a\u91cf\u4f7f\u7528\u66f4\u5177\u63cf\u8ff0\u6027\u7684\u540d\u7a31\uff0c\u6216\u4f7f\u7528\u547d\u540d\u7a7a\u9593\uff08\u5982\u7d50\u69cb\u6216\u985e\u5225\uff09\u4f86\u7d44\u7e54\u6210\u54e1\u8b8a\u91cf\u3002<\/p>\n
Q3: \u5982\u679c\u6211\u4f7f\u7528 self \u95dc\u9375\u5b57\u9084\u662f\u51fa\u73fe\u932f\u8aa4\uff0c\u8a72\u600e\u9ebc\u8fa6\uff1f<\/h3>\n
A3: \u78ba\u4fdd\u5728\u4f7f\u7528 self \u6642\uff0c\u6c92\u6709\u5176\u4ed6\u540c\u540d\u8b8a\u91cf\u5728\u4f5c\u7528\u57df\u5167\uff0c\u6aa2\u67e5\u662f\u5426\u6709\u5176\u4ed6\u5730\u65b9\u5b9a\u7fa9\u4e86\u540c\u540d\u8b8a\u91cf\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39Swift\u4e2d\u6a21\u7cca\u5f15\u7528\u6210\u54e1’Y’\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8a73\u7d30\u89e3\u91cb\u5982\u4f55\u4f7f\u7528methods()\u51fd\u6578\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u793a\u4f8b\u4ee3\u78bc\u4ee5\u4f9b\u53c3\u8003\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"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":[174,5],"tags":[173,9],"class_list":["post-4081","post","type-post","status-publish","format-standard","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-13P","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4081","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=4081"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4081\/revisions"}],"predecessor-version":[{"id":4082,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4081\/revisions\/4082"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}