{"id":4179,"date":"2025-05-29T11:28:22","date_gmt":"2025-06-05T04:19:21","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4179"},"modified":"2025-06-05T11:28:22","modified_gmt":"2025-06-05T04:19:21","slug":"%e5%ad%b8%e7%bf%92swift%e4%b8%ad%e7%9a%84for-in%e8%aa%9e%e5%8f%a5%ef%bc%9a%e8%a7%a3%e6%b1%ba%e3%80%8cexpectedinfor-instatement%e3%80%8d%e9%8c%af%e8%aa%a4-3","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/%e5%ad%b8%e7%bf%92swift%e4%b8%ad%e7%9a%84for-in%e8%aa%9e%e5%8f%a5%ef%bc%9a%e8%a7%a3%e6%b1%ba%e3%80%8cexpectedinfor-instatement%e3%80%8d%e9%8c%af%e8%aa%a4-3\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Swift \u7684 for-in \u8a9e\u53e5\uff1a\u89e3\u6c7a\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\u7684\u6700\u65b0\u65b9\u6cd5"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u4e86\u89e3 Swift \u7684 for-in \u8a9e\u53e5\uff1a\u89e3\u6c7a\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\u7684\u6700\u65b0\u65b9\u6cd5<\/h1>\n

Swift \u662f\u4e00\u7a2e\u5f37\u5927\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc iOS \u548c macOS \u61c9\u7528\u958b\u767c\u3002\u7136\u800c\uff0c\u5373\u4f7f\u662f\u7d93\u9a57\u8c50\u5bcc\u7684\u958b\u767c\u8005\uff0c\u6709\u6642\u4e5f\u6703\u9047\u5230\u7de8\u8b6f\u932f\u8aa4\uff0c\u5176\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\u662f\u300cExpected ‘;’ in for-in statement\u300d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u5f0f\u53ca\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\uff1f<\/h2>\n

\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\u662f Swift \u7de8\u8b6f\u5668\u5728\u57f7\u884c for-in \u8a9e\u53e5\u6642\u767c\u51fa\u7684\u932f\u8aa4\u8a0a\u606f\uff0c\u8868\u793a\u5728\u8a9e\u53e5\u7d50\u5c3e\u8655\u672a\u627e\u5230\u5206\u865f\uff08;\uff09\u3002\u7136\u800c\uff0c\u5728 Swift \u4e2d\uff0cfor-in \u8a9e\u53e5\u4e0d\u9700\u8981\u4ee5\u5206\u865f\u7d50\u5c3e\uff0c\u9019\u8868\u660e\u8a72\u932f\u8aa4\u53ef\u80fd\u662f\u7531\u65bc\u5176\u4ed6\u8a9e\u6cd5\u932f\u8aa4\u6216\u7d50\u69cb\u554f\u984c\u5f15\u8d77\u7684\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u6703\u51fa\u73fe\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\uff1f<\/h2>\n

\u9019\u500b\u932f\u8aa4\u7684\u51fa\u73fe\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u7a2e\u539f\u56e0\uff1a<\/p>\n

1. **\u8a9e\u6cd5\u932f\u8aa4**\uff1a\u5982\u7f3a\u5c11\u95dc\u9375\u5b57\u3001\u62ec\u865f\u6216\u5176\u4ed6\u5fc5\u8981\u7684\u7d50\u69cb\u3002
\n2. **\u932f\u8aa4\u7684\u7a0b\u5f0f\u908f\u8f2f**\uff1a\u4f8b\u5982\u4e0d\u7576\u7684\u8b8a\u6578\u7bc4\u570d\u6216\u672a\u6b63\u78ba\u521d\u59cb\u5316\u7684\u9663\u5217\u3002
\n3. **\u820a\u7248\u8a9e\u6cd5**\uff1a\u5982\u679c\u4f7f\u7528\u4e86\u904e\u6642\u7684\u8a9e\u6cd5\u6216\u4e0d\u517c\u5bb9\u7684\u8a9e\u8a00\u7279\u6027\u3002<\/p>\n

\u5982\u4f55\u89e3\u6c7a\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\uff1f<\/h2>\n

\u89e3\u6c7a\u9019\u500b\u932f\u8aa4\u7684\u7b2c\u4e00\u6b65\u662f\u6aa2\u67e5 for-in \u8a9e\u53e5\u7684\u7d50\u69cb\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u7bc4\uff1a<\/p>\n

“`swift
\nlet array = [“Apple”, “Banana”, “Cherry”]\n

for item in array {
\n print(item) \/\/ \u6b63\u78ba\u7684\u5beb\u6cd5\uff0c\u4e0d\u9700\u8981\u5206\u865f
\n}
\n“`<\/p>\n

\u5982\u4e0a\u6240\u793a\uff0c\u5728 Swift \u4e2d\uff0cfor-in \u8a9e\u53e5\u7684\u7d50\u5c3e\u4e0d\u9700\u8981\u5206\u865f\u3002\u82e5\u7de8\u8b6f\u5668\u4ecd\u7136\u5831\u932f\uff0c\u5247\u9700\u6aa2\u67e5\u6574\u500b\u7a0b\u5f0f\u78bc\u7684\u5176\u4ed6\u90e8\u5206\u3002\u78ba\u4fdd\u6240\u6709\u5c01\u9589\u7684\u62ec\u865f\u3001\u82b1\u62ec\u865f\u548c\u8a9e\u53e5\u7d50\u69cb\u6b63\u78ba\u7121\u8aa4\u3002<\/p>\n

\u5e38\u898b\u932f\u8aa4\u6392\u9664\u6280\u5de7<\/h3>\n

– **\u6aa2\u67e5\u8b8a\u6578\u5b9a\u7fa9**\uff1a\u78ba\u4fdd\u88ab\u8fed\u4ee3\u7684\u8b8a\u6578\u5df2\u6b63\u78ba\u5b9a\u7fa9\u548c\u521d\u59cb\u5316\u3002
\n– **\u4f7f\u7528 Xcode \u7684\u5373\u6642\u53cd\u994b**\uff1aXcode \u63d0\u4f9b\u5373\u6642\u7684\u8a9e\u6cd5\u6aa2\u67e5\uff0c\u53ef\u5354\u52a9\u5feb\u901f\u627e\u5230\u932f\u8aa4\u4f86\u6e90\u3002
\n– **\u7c21\u5316\u7a0b\u5f0f\u78bc**\uff1a\u5c07\u7a0b\u5f0f\u78bc\u7c21\u5316\u70ba\u57fa\u672c\u5f62\u5f0f\uff0c\u9010\u6b65\u6dfb\u52a0\u529f\u80fd\uff0c\u627e\u5230\u554f\u984c\u6240\u5728\u3002<\/p>\n

\u5ef6\u4f38\u61c9\u7528<\/h3>\n

for-in \u8a9e\u53e5\u5728 Swift \u4e2d\u975e\u5e38\u9748\u6d3b\uff0c\u53ef\u4ee5\u7528\u65bc\u904d\u6b77\u9663\u5217\u3001\u5b57\u5178\u53ca\u5176\u4ed6\u96c6\u5408\u985e\u578b\u3002\u9019\u88e1\u662f\u4f7f\u7528 for-in \u8a9e\u53e5\u904d\u6b77\u5b57\u5178\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`swift
\nlet fruits = [“a”: “Apple”, “b”: “Banana”, “c”: “Cherry”]\n

for (key, value) in fruits {
\n print(“\\(key): \\(value)”)
\n}
\n“`<\/p>\n

\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 for-in \u8a9e\u53e5\u6709\u6548\u5730\u904d\u6b77\u5b57\u5178\uff0c\u4e26\u53d6\u5f97\u9375\u548c\u503c\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

\u300cExpected ‘;’ in for-in statement\u300d\u932f\u8aa4\u4e26\u4e0d\u8868\u793a\u9700\u8981\u5728 for-in \u8a9e\u53e5\u672b\u5c3e\u52a0\u4e0a\u5206\u865f\uff0c\u800c\u662f\u53ef\u80fd\u53cd\u6620\u4e86\u5176\u4ed6\u8a9e\u6cd5\u6216\u908f\u8f2f\u932f\u8aa4\u3002\u4fdd\u6301\u7a0b\u5f0f\u78bc\u7684\u6e05\u6670\u548c\u7c21\u6f54\uff0c\u4e26\u5229\u7528 Xcode \u7684\u5de5\u5177\uff0c\u5c07\u6709\u52a9\u65bc\u5feb\u901f\u89e3\u6c7a\u9019\u985e\u554f\u984c\u3002<\/p>\n

\u5e0c\u671b\u672c\u6587\u5c0d\u4f60\u6709\u6240\u5e6b\u52a9\uff0c\u5982\u679c\u4f60\u6709\u4efb\u4f55\u7591\u554f\uff0c\u6b61\u8fce\u5728\u4e0b\u65b9\u7559\u8a00\u8a0e\u8ad6\u3002<\/p>\n

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

Q1: Swift \u7684 for-in \u8a9e\u53e5\u6709\u4ec0\u9ebc\u5e38\u898b\u7528\u9014\uff1f<\/h3>\n

A1: for-in \u8a9e\u53e5\u5e38\u7528\u65bc\u904d\u6b77\u9663\u5217\u3001\u5b57\u5178\u548c\u5176\u4ed6\u96c6\u5408\u985e\u578b\uff0c\u4fbf\u65bc\u63d0\u53d6\u548c\u8655\u7406\u8cc7\u6599\u3002<\/p>\n

Q2: \u5982\u4f55\u77e5\u9053\u6211\u7684 Swift \u4ee3\u78bc\u4e2d\u662f\u5426\u6709\u8a9e\u6cd5\u932f\u8aa4\uff1f<\/h3>\n

A2: \u4f7f\u7528 Xcode \u7684\u5373\u6642\u8a9e\u6cd5\u6aa2\u67e5\u548c\u7de8\u8b6f\u932f\u8aa4\u63d0\u793a\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u767c\u73fe\u4ee3\u78bc\u4e2d\u7684\u8a9e\u6cd5\u554f\u984c\u3002<\/p>\n

Q3: \u6709\u4ec0\u9ebc\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u6211\u5b78\u7fd2 Swift \u7a0b\u5f0f\u8a2d\u8a08\uff1f<\/h3>\n

A3: \u9664\u4e86 Xcode\uff0c\u9084\u53ef\u4ee5\u53c3\u8003 Apple \u7684\u5b98\u65b9\u6587\u6a94\u3001\u7dda\u4e0a\u8ab2\u7a0b\u548c\u793e\u5340\u8ad6\u58c7\uff0c\u9019\u4e9b\u90fd\u662f\u5b78\u7fd2 Swift \u7684\u7d55\u4f73\u8cc7\u6e90\u3002
\n—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39Swift\u4e2d\u7684for-in\u8a9e\u53e5\uff0c\u4e26\u8a73\u7d30\u89e3\u91cb\u5982\u4f55\u89e3\u6c7a\u300cExpected’;’infor-instatement\u300d\u932f\u8aa4\u3002\u8b80\u8005\u5c07\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528for-in\u8a9e\u53e5\uff0c\u4ee5\u53ca\u5982\u4f55\u907f\u514d\u51fa\u73fe\u6b64\u932f\u8aa4\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-4179","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\/pcFK27-15p","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4179","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=4179"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4179\/revisions"}],"predecessor-version":[{"id":4180,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4179\/revisions\/4180"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}