{"id":4261,"date":"2025-05-30T11:50:29","date_gmt":"2025-06-05T04:32:29","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4261"},"modified":"2025-06-05T11:50:29","modified_gmt":"2025-06-05T04:32:29","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%a4-5","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%a4-5\/","title":{"rendered":"\u6df1\u5165\u89e3\u6790 Swift \u7684 for-in \u8a9e\u53e5\uff1a\u5982\u4f55\u89e3\u6c7a\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u932f\u8aa4"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Swift, for-in \u8a9e\u53e5, Expected ';' in for-in statement, Swift \u6559\u5b78, Swift \u7a0b\u5f0f\u8a9e\u8a00\"><\/p>\n<h1>\u6df1\u5165\u89e3\u6790 Swift \u7684 for-in \u8a9e\u53e5\uff1a\u5982\u4f55\u89e3\u6c7a\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u932f\u8aa4<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u73fe\u4ee3\u5316\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u64c1\u6709\u7c21\u6f54\u800c\u5f37\u5927\u7684\u8a9e\u6cd5\u7279\u6027\u3002\u7136\u800c\uff0c\u5c0d\u65bc\u521d\u5b78\u8005\u4f86\u8aaa\uff0c\u67d0\u4e9b\u932f\u8aa4\u53ef\u80fd\u6703\u9020\u6210\u56f0\u60d1\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u3002\u672c\u7bc7\u6587\u7ae0\u5c07\u8a73\u76e1\u4ecb\u7d39\u9019\u500b\u932f\u8aa4\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u4e26\u63d0\u4f9b\u5be6\u4f5c\u7bc4\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\uff0c\u5e6b\u52a9\u60a8\u66f4\u6df1\u5165\u4e86\u89e3 Swift \u7684 for-in \u8a9e\u53e5\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u932f\u8aa4\uff1f<\/h2>\n<p>\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u932f\u8aa4\u662f Swift \u7a0b\u5f0f\u8a9e\u8a00\u4e2d\u5e38\u898b\u7684\u8a9e\u6cd5\u932f\u8aa4\u4e4b\u4e00\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u610f\u5473\u8457\u60a8\u7684 for-in \u8a9e\u53e5\u672a\u6b63\u78ba\u7d50\u675f\uff0c\u6216\u662f\u8a9e\u6cd5\u6709\u8aa4\u3002\u5728 Swift \u8a9e\u6cd5\u4e2d\uff0cfor-in \u5faa\u74b0\u7528\u65bc\u904d\u6b77\u96c6\u5408\u3001\u6578\u7d44\u6216\u7bc4\u570d\u3002<\/p>\n<h2>\u70ba\u4ec0\u9ebc\u6703\u51fa\u73fe\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u932f\u8aa4\uff1f<\/h2>\n<p>\u5728 Swift \u4e2d\uff0cfor-in \u8a9e\u53e5\u7684\u7d50\u69cb\u4e26\u4e0d\u9700\u8981\u5206\u865f\u4f5c\u70ba\u7d50\u5c3e\u3002\u9019\u662f\u8207\u5176\u4ed6\u8a9e\u8a00\uff08\u5982 C \u6216 Java\uff09\u7684\u4e00\u500b\u986f\u8457\u5340\u5225\u3002\u7576\u60a8\u8a66\u5716\u5728 for-in \u8a9e\u53e5\u4e2d\u4f7f\u7528\u5206\u865f\u6642\uff0c\u4fbf\u6703\u51fa\u73fe\u300cExpected &#8216;;&#8217; in for-in statement\u300d\u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u932f\u8aa4\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\nfor i in 0..<10;  \/\/ \u932f\u8aa4\u7684\u8a9e\u6cd5\n    print(i)\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u5206\u865f\u7684\u4f7f\u7528\u662f\u4e0d\u6b63\u78ba\u7684\uff0c\u56e0\u6b64\u6703\u5c0e\u81f4\u7de8\u8b6f\u932f\u8aa4\u3002<\/p>\n<h2>\u5982\u4f55\u6b63\u78ba\u4f7f\u7528 for-in \u8a9e\u53e5\uff1f<\/h2>\n<p>\u8981\u89e3\u6c7a\u300cExpected ';' in for-in statement\u300d\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd for-in \u8a9e\u53e5\u7684\u6b63\u78ba\u8a9e\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u6b63\u78ba\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\nfor i in 0..<10 {  \/\/ \u6b63\u78ba\u7684\u8a9e\u6cd5\n    print(i)\n}\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0cfor-in \u5faa\u74b0\u6b63\u78ba\u5730\u4f7f\u7528\u4e86\u5927\u62ec\u865f\u4f86\u5305\u88f9\u5faa\u74b0\u9ad4\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u5206\u865f\u3002<\/p>\n<h2>\u5e38\u898b\u932f\u8aa4\u6392\u9664<\/h2>\n<p>1. **\u6aa2\u67e5\u5927\u62ec\u865f**\uff1a\u78ba\u4fdd\u60a8\u7684 for-in \u8a9e\u53e5\u4f7f\u7528\u5927\u62ec\u865f\u4f86\u5305\u88f9\u5faa\u74b0\u9ad4\uff0c\u800c\u4e0d\u662f\u5206\u865f\u3002<br \/>\n2. **\u907f\u514d\u591a\u9918\u7684\u5206\u865f**\uff1a\u78ba\u4fdd\u5728\u8a9e\u53e5\u672b\u5c3e\u6c92\u6709\u591a\u9918\u7684\u5206\u865f\u3002<br \/>\n3. **\u95b1\u8b80\u932f\u8aa4\u8a0a\u606f**\uff1a\u6ce8\u610f\u7de8\u8b6f\u5668\u63d0\u4f9b\u7684\u932f\u8aa4\u8a0a\u606f\uff0c\u9019\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u6240\u5728\u3002<\/p>\n<h2>\u5ef6\u4f38\u61c9\u7528\uff1afor-in \u8a9e\u53e5\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>- **\u4f7f\u7528\u7bc4\u570d**\uff1a\u5229\u7528\u7bc4\u570d\u904b\u7b97\u7b26\u5982 `0..<10` \u53ef\u4ee5\u4fbf\u6377\u5730\u751f\u6210\u6578\u5b57\u7bc4\u570d\u3002\n- **\u904d\u6b77\u6578\u7d44**\uff1a\u60a8\u53ef\u4ee5\u4f7f\u7528 for-in \u4f86\u904d\u6b77\u6578\u7d44\u4e2d\u7684\u5143\u7d20\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a\n\n\n\n<pre class=\"brush: swift\">\nlet array = [\"Apple\", \"Banana\", \"Cherry\"]\nfor fruit in array {\n    print(fruit)\n}\n<\/pre>\n<p>\u9019\u6703\u4f9d\u6b21\u6253\u5370\u51fa\u6578\u7d44\u4e2d\u7684\u6bcf\u500b\u6c34\u679c\u540d\u7a31\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728 Swift \u4e2d\uff0c\u300cExpected ';' in for-in statement\u300d\u932f\u8aa4\u4e3b\u8981\u662f\u7531\u65bc\u8a9e\u6cd5\u4e0d\u6b63\u78ba\u6240\u5c0e\u81f4\u3002\u901a\u904e\u4e86\u89e3\u6b63\u78ba\u7684\u8a9e\u6cd5\u7d50\u69cb\u548c\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u907f\u514d\u9019\u985e\u932f\u8aa4\uff0c\u4e26\u66f4\u6709\u6548\u5730\u4f7f\u7528 for-in \u8a9e\u53e5\u9032\u884c\u7de8\u7a0b\u3002<\/p>\n<h2>Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>1. \u70ba\u4ec0\u9ebc Swift \u7684 for-in \u8a9e\u53e5\u4e0d\u9700\u8981\u5206\u865f\uff1f<\/h3>\n<p>\u5728 Swift \u4e2d\uff0c\u8a9e\u6cd5\u8a2d\u8a08\u4e0a\u7c21\u5316\u4e86\u7d50\u69cb\uff0c\u4f7f\u5f97\u7a0b\u5f0f\u78bc\u66f4\u6613\u8b80\uff0c\u9019\u4e5f\u662f\u70ba\u4ec0\u9ebc\u4e0d\u9700\u8981\u5728\u8a9e\u53e5\u672b\u5c3e\u4f7f\u7528\u5206\u865f\u7684\u539f\u56e0\u3002<\/p>\n<h3>2. \u5982\u4f55\u6709\u6548\u5730\u4f7f\u7528 for-in \u8ff4\u5708\u904d\u6b77\u5b57\u5178\uff1f<\/h3>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 for-in \u8a9e\u53e5\u904d\u6b77\u5b57\u5178\u7684\u9375\u503c\u5c0d\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"brush: swift\">\nlet dictionary = [\"name\": \"Alice\", \"age\": \"30\"]\nfor (key, value) in dictionary {\n    print(\"\\(key): \\(value)\")\n}\n<\/pre>\n<h3>3. \u4f55\u6642\u61c9\u4f7f\u7528 forEach \u4f86\u66ff\u4ee3 for-in\uff1f<\/h3>\n<p>\u5982\u679c\u60a8\u4e0d\u9700\u8981\u5728\u8ff4\u5708\u4e2d\u4f7f\u7528\u7d22\u5f15\uff0cforEach \u65b9\u6cd5\u53ef\u4ee5\u4f7f\u4ee3\u78bc\u66f4\u7c21\u6f54\uff0c\u9069\u7528\u65bc\u6578\u7d44\u548c\u96c6\u5408\u7684\u904d\u6b77\u3002<\/p>\n<p>---<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\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&#8217;;&#8217;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-4261","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\/pcFK27-16J","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4261","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=4261"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4261\/revisions"}],"predecessor-version":[{"id":4262,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4261\/revisions\/4262"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}