{"id":194769,"date":"2024-11-13T09:25:21","date_gmt":"2024-11-13T01:25:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194769\/"},"modified":"2024-11-13T09:25:23","modified_gmt":"2024-11-13T01:25:23","slug":"%e9%82%84%e5%9c%a8%e8%87%aa%e5%b7%b1%e5%af%ab%e8%bf%ad%e4%bb%a3%e5%99%a8%e9%80%b2%e8%a1%8cremove%ef%bc%9f%e5%bf%ab%e4%be%86%e7%9c%8b%e7%9c%8b%e6%96%b0%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194769\/","title":{"rendered":"\u9084\u5728\u81ea\u5df1\u5beb\u8fed\u4ee3\u5668\u9032\u884cremove\uff1f\u5feb\u4f86\u770b\u770b\u65b0\u65b9\u6cd5"},"content":{"rendered":"

\u9084\u5728\u81ea\u5df1\u5beb\u8fed\u4ee3\u5668\u9032\u884cremove\uff1f\u5feb\u4f86\u770b\u770b\u65b0\u65b9\u6cd5<\/h1>\n

\u5728\u7de8\u7a0b\u4e2d\uff0c\u8fed\u4ee3\u5668\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5c24\u5176\u662f\u5728\u8655\u7406\u96c6\u5408\u6578\u64da\u6642\u3002\u8a31\u591a\u958b\u767c\u8005\u5728\u4f7f\u7528\u8fed\u4ee3\u5668\u6642\uff0c\u6703\u9047\u5230\u9700\u8981\u5f9e\u96c6\u5408\u4e2d\u79fb\u9664\u5143\u7d20\u7684\u60c5\u6cc1\u3002\u50b3\u7d71\u4e0a\uff0c\u9019\u901a\u5e38\u9700\u8981\u958b\u767c\u8005\u81ea\u5df1\u7de8\u5beb\u908f\u8f2f\u4f86\u8655\u7406\u79fb\u9664\u64cd\u4f5c\uff0c\u9019\u4e0d\u50c5\u7e41\u7463\uff0c\u9084\u5bb9\u6613\u51fa\u932f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u66f4\u7c21\u4fbf\u7684\u65b9\u6cd5\u4f86\u9032\u884c\u5143\u7d20\u7684\u79fb\u9664\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n

\u8fed\u4ee3\u5668\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u8fed\u4ee3\u5668\u662f\u4e00\u7a2e\u5c0d\u96c6\u5408\u9032\u884c\u904d\u6b77\u7684\u5c0d\u8c61\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7d71\u4e00\u7684\u65b9\u5f0f\u4f86\u8a2a\u554f\u96c6\u5408\u4e2d\u7684\u5143\u7d20\uff0c\u800c\u4e0d\u9700\u8981\u95dc\u5fc3\u96c6\u5408\u7684\u5177\u9ad4\u5be6\u73fe\u3002\u5927\u591a\u6578\u7de8\u7a0b\u8a9e\u8a00\u90fd\u63d0\u4f9b\u4e86\u5167\u5efa\u7684\u8fed\u4ee3\u5668\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u904d\u6b77\u6578\u64da\u7d50\u69cb\u3002<\/p>\n

\u50b3\u7d71\u7684\u79fb\u9664\u65b9\u6cd5<\/h2>\n

\u5728\u8a31\u591a\u7de8\u7a0b\u8a9e\u8a00\u4e2d\uff0c\u7576\u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u6b77\u96c6\u5408\u6642\uff0c\u82e5\u8981\u5728\u904d\u6b77\u904e\u7a0b\u4e2d\u79fb\u9664\u5143\u7d20\uff0c\u958b\u767c\u8005\u901a\u5e38\u9700\u8981\u5c0f\u5fc3\u8655\u7406\u7d22\u5f15\u6216\u4f7f\u7528\u984d\u5916\u7684\u908f\u8f2f\u4f86\u907f\u514dConcurrentModificationException\u7b49\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Java\u7684\u793a\u4f8b\uff1a<\/p>\n

List<String> list = new ArrayList<>(Arrays.asList(\"A\", \"B\", \"C\", \"D\"));\nIterator<String> iterator = list.iterator();\nwhile (iterator.hasNext()) {\n    String element = iterator.next();\n    if (element.equals(\"B\")) {\n        iterator.remove(); \/\/ \u4f7f\u7528\u8fed\u4ee3\u5668\u7684remove\u65b9\u6cd5\n    }\n}\nSystem.out.println(list); \/\/ \u8f38\u51fa: [A, C, D]\n<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u8fed\u4ee3\u5668\u7684remove\u65b9\u6cd5\u4f86\u5b89\u5168\u5730\u79fb\u9664\u5143\u7d20\u3002\u9019\u662f\u6b63\u78ba\u7684\u505a\u6cd5\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9019\u6a23\u7684\u5beb\u6cd5\u53ef\u80fd\u6703\u986f\u5f97\u7e41\u7463\u3002<\/p>\n
\u65b0\u65b9\u6cd5\uff1a\u4f7f\u7528\u6d41\uff08Streams\uff09\u9032\u884c\u79fb\u9664<\/h2>\n
\u96a8\u8457Java 8\u7684\u63a8\u51fa\uff0c\u6d41\uff08Streams\uff09API\u7684\u5f15\u5165\u70ba\u96c6\u5408\u64cd\u4f5c\u63d0\u4f9b\u4e86\u66f4\u7c21\u6f54\u7684\u65b9\u5f0f\u3002\u4f7f\u7528\u6d41\u9032\u884c\u5143\u7d20\u7684\u904e\u6ffe\u548c\u79fb\u9664\uff0c\u53ef\u4ee5\u4f7f\u4ee3\u78bc\u66f4\u52a0\u7c21\u6f54\u548c\u6613\u8b80\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u6d41\u9032\u884c\u79fb\u9664\u7684\u793a\u4f8b\uff1a<\/p>\n
List<String> list = new ArrayList<>(Arrays.asList(\"A\", \"B\", \"C\", \"D\"));\nlist = list.stream()\n           .filter(element -> !element.equals(\"B\")) \/\/ \u904e\u6ffe\u6389\"B\"\n           .collect(Collectors.toList());\nSystem.out.println(list); \/\/ \u8f38\u51fa: [A, C, D]\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u6d41\u7684filter\u65b9\u6cd5\u4f86\u904e\u6ffe\u6389\u4e0d\u9700\u8981\u7684\u5143\u7d20\uff0c\u7136\u5f8c\u5c07\u7d50\u679c\u6536\u96c6\u56de\u4e00\u500b\u65b0\u7684\u5217\u8868\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u7c21\u5316\u4e86\u4ee3\u78bc\uff0c\u9084\u63d0\u9ad8\u4e86\u53ef\u8b80\u6027\u3002<\/p>\n
\u5176\u4ed6\u7de8\u7a0b\u8a9e\u8a00\u4e2d\u7684\u79fb\u9664\u65b9\u6cd5<\/h2>\n
\u9664\u4e86Java\uff0c\u5176\u4ed6\u7de8\u7a0b\u8a9e\u8a00\u4e5f\u63d0\u4f9b\u4e86\u985e\u4f3c\u7684\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5c0e\u5f0f\u4f86\u79fb\u9664\u5143\u7d20\uff1a<\/p>\n
list = [\"A\", \"B\", \"C\", \"D\"]\nlist = [element for element in list if element != \"B\"]\nprint(list)  # \u8f38\u51fa: ['A', 'C', 'D']\n<\/code><\/pre>\n
\u5728\u9019\u500bPython\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u5217\u8868\u63a8\u5c0e\u5f0f\u4f86\u5275\u5efa\u4e00\u500b\u65b0\u7684\u5217\u8868\uff0c\u904e\u6ffe\u6389\u4e0d\u9700\u8981\u7684\u5143\u7d20\uff0c\u9019\u6a23\u7684\u5beb\u6cd5\u540c\u6a23\u7c21\u6f54\u660e\u4e86\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
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\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u958b\u767c\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u4eab\u53d7\u7a69\u5b9a\u548c\u5feb\u901f\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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