{"id":1934,"date":"2026-03-22T22:47:31","date_gmt":"2026-03-22T22:47:31","guid":{"rendered":"https:\/\/www.tech-posts.com\/tw\/composition-relationships-class-structures-ooad\/"},"modified":"2026-03-22T22:47:31","modified_gmt":"2026-03-22T22:47:31","slug":"composition-relationships-class-structures-ooad","status":"publish","type":"post","link":"https:\/\/www.tech-posts.com\/tw\/composition-relationships-class-structures-ooad\/","title":{"rendered":"OOAD\u6307\u5357\uff1a\u985e\u5225\u7d50\u69cb\u4e2d\u7684\u7d44\u6210\u95dc\u4fc2"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Child-style infographic illustrating composition relationships in object-oriented design, showing House-Room and Body-Heart examples of part-of lifecycle dependency, contrasted with University-Student aggregation, with simple icons for constructor injection, encapsulation, and a decision flowchart for choosing composition in class structures\" decoding=\"async\" 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\u90e8\u5206\u901a\u5e38\u5728\u6574\u9ad4\u7684\u7bc4\u570d\u4e4b\u5916\u4e0d\u53ef\u898b\u3002<\/li>\n<\/ul>\n<p>\u8003\u616e\u4e00\u500b\u7c21\u55ae\u7684\u5c64\u6b21\u7d50\u69cb\u3002\u4e00\u500b<code>\u623f\u5c4b<\/code>\u985e\u5225\u53ef\u80fd\u5305\u542b\u591a\u500b<code>\u623f\u9593<\/code>\u7269\u4ef6\u3002\u82e5<code>\u623f\u5c4b<\/code>\u88ab\u62c6\u9664\uff0c\u5247<code>\u623f\u9593<\/code>\u7269\u4ef6\u5728\u8a72\u60c5\u5883\u4e0b\u4fbf\u4e0d\u518d\u5b58\u5728\u3002\u5b83\u5011\u4e0d\u6703\u81ea\u52d5\u9077\u79fb\u5230\u53e6\u4e00\u68df\u623f\u5c4b\u3002\u9019\u6b63\u662f\u7d44\u6210\u95dc\u4fc2\u7684\u672c\u8cea\u3002<\/p>\n<h2>\ud83d\udcca 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\u5c01\u88dd\u5f0f\u5b58\u53d6<\/h3>\n<p>\u7d44\u4ef6\u901a\u5e38\u61c9\u88ab\u96b1\u85cf\u3002\u63d0\u4f9b\u4e00\u500b\u50b3\u56de\u7d44\u4ef6\u53c3\u8003\u7684\u53d6\u5f97\u65b9\u6cd5\uff0c\u53ef\u80fd\u6703\u7834\u58de\u751f\u547d\u9031\u671f\u7684\u5c01\u88dd\u6027\u3002\u5982\u679c\u5ba2\u6236\u7aef\u6536\u5230\u76f4\u63a5\u7684\u53c3\u8003\uff0c\u53ef\u80fd\u6703\u4ee5\u640d\u5bb3\u6574\u9ad4\u7684\u65b9\u5f0f\u4fee\u6539\u8a72\u7d44\u4ef6\u3002<\/p>\n<ul>\n<li>\u4f7f\u7528\u50b3\u56de\u8907\u672c\u6216\u4ecb\u9762\u7684\u5b58\u53d6\u65b9\u6cd5\u3002<\/li>\n<li>\u9650\u5236\u5c0d\u7d44\u4ef6\u7269\u4ef6\u7684\u76f4\u63a5\u4fee\u6539\u3002<\/li>\n<li>\u78ba\u4fdd\u7d44\u5408\u5c0d\u8c61\u63a7\u5236\u4fee\u6539\u908f\u8f2f\u3002<\/li>\n<\/ul>\n<h3>3. 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<code>\u9801\u9762<\/code>\u7269\u4ef6\u3002\u5982\u679c\u6587\u4ef6\u88ab\u522a\u9664\uff0c\u9801\u9762\u5c07\u4e0d\u518d\u76f8\u95dc\u3002\u5728\u6b64\u60c5\u5883\u4e0b\uff0c\u7d44\u6210\u662f\u5408\u9069\u7684\u3002\u6587\u4ef6\u63a7\u5236\u9801\u9762\u7684\u9806\u5e8f\u8207\u5b58\u5728\u6027\u3002<\/p>\n<h3>\u60c5\u5883 2\uff1a\u96fb\u5b50\u5546\u52d9\u8a02\u55ae<\/h3>\n<p>\u4e00\u500b <code>\u8a02\u55ae<\/code>\u5305\u542b <code>\u8a02\u55ae\u9805\u76ee<\/code>\u7269\u4ef6\u3002\u7576\u8a02\u55ae\u5b8c\u6210\u4e26\u6b78\u6a94\u6642\uff0c\u9805\u76ee\u4ecd\u70ba\u6b77\u53f2\u8cc7\u6599\u3002\u7136\u800c\uff0c\u82e5\u8a02\u55ae\u88ab\u4f5c\u5ee2\uff0c\u9805\u76ee\u5247\u6703\u88ab\u79fb\u9664\u3002\u9019\u8868\u793a\u8a02\u55ae\u7684\u6d3b\u8e8d\u72c0\u614b\u61c9\u4f7f\u7528\u7d44\u6210\u3002<\/p>\n<h3>\u60c5\u5883 3\uff1a\u91d1\u878d\u6295\u8cc7\u7d44\u5408<\/h3>\n<p>\u4e00\u500b <code>\u6295\u8cc7\u7d44\u5408<\/code>\u6301\u6709 <code>\u8cc7\u7522<\/code> 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