{"id":149,"date":"2015-12-09T17:21:19","date_gmt":"2015-12-09T09:21:19","guid":{"rendered":"http:\/\/www.prayerlaputa.com\/?p=149"},"modified":"2015-12-09T17:21:19","modified_gmt":"2015-12-09T09:21:19","slug":"grasp%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f-%e6%a6%82%e8%a6%81%e7%af%87%e3%80%90%e8%bd%ac%e8%bd%bd%e3%80%91","status":"publish","type":"post","link":"http:\/\/prayerlaputa.com\/?p=149","title":{"rendered":"GRASP\u8bbe\u8ba1\u6a21\u5f0f \u2013 \u6982\u8981\u7bc7\u3010\u8f6c\u8f7d\u3011"},"content":{"rendered":"

\u8f6c\u8f7d\u5730\u5740\uff1ahttp:\/\/www.lifevv.com\/sysdesign\/doc\/20071211214255251.html
\nGRASP \u662fGeneral Responsibility Assignment Software patterns\uff08\u901a\u7528\u804c\u8d23\u5206\u914d\u8f6f\u4ef6\u6a21\u5f0f\uff09\u7684\u7b80\u79f0\uff0c\u5b83\u7684\u6838\u5fc3\u601d\u60f3\u662f\u201c\u804c\u8d23\u5206\u914d\uff08Responsibility Assignment\uff09\u201d\u3002GRASP\u63d0\u51fa\u4e86\u51e0\u4e2a\u57fa\u672c\u539f\u5219\uff0c\u7528\u6765\u89e3\u51b3\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u7684\u4e00\u4e9b\u95ee\u9898\u3002
\nCraig Larman\u6c0f\u5728\u300aApplying UML and Patterns\u300b\u4e00\u4e66\u4e2d\u63d0\u51fa\u4e86GRASP\u8bbe\u8ba1\u6a21\u5f0f\u7684\u6982\u5ff5\u3002\u4f5c\u8005\u79f0\u5176\u4e3a\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5176\u5b9e\uff0c\u66f4\u597d\u7684\u7406\u89e3\u5e94\u8be5\u4e3a\u8bbe\u8ba1\u539f\u5219\u3002\u56e0\u4e3a\uff0c\u4e0eGoF\u7b49\u8bbe\u8ba1\u6a21\u5f0f\u4e0d\u540c\u7684 \u662f\uff0cGoF\u7b49\u8bbe\u8ba1\u6a21\u5f0f\u662f\u9488\u5bf9\u7279\u5b9a\u95ee\u9898\u800c\u63d0\u51fa\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u800cGRASP\u5219\u662f\u7ad9\u5728\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u7684\u89d2\u5ea6\uff0c\u544a\u8bc9\u6211\u4eec\u600e\u4e48\u6837\u8bbe\u8ba1\u95ee\u9898\u7a7a\u95f4\u4e2d\u7684\u7c7b\u4e0e\u5b83\u4eec\u7684\u884c\u4e3a\u8d23\u4efb\uff0c\u4ee5 \u53ca\u660e\u786e\u7c7b\u4e4b\u95f4\u7684\u76f8\u4e92\u5173\u7cfb\u7b49\u7b49\u3002GRASP\u53ef\u4ee5\u8bf4\u662fGoF\u7b49\u8bbe\u8ba1\u6a21\u5f0f\u7684\u57fa\u7840\u3002
\n 
\nGRASP\u6982\u8981
\nGRASP \u662fGeneral Responsibility Assignment Software patterns\uff08\u901a\u7528\u804c\u8d23\u5206\u914d\u8f6f\u4ef6\u6a21\u5f0f\uff09\u7684\u7b80\u79f0\uff0c\u5b83\u7684\u6838\u5fc3\u601d\u60f3\u662f\u201c\u804c\u8d23\u5206\u914d\uff08Responsibility Assignment\uff09\u201d\uff0c\u7528\u804c\u8d23\u8bbe\u8ba1\u5bf9\u8c61\uff1a\u201dDesigning Objects with Responsibilities\u201d\u3002\u5b83\u5305\u542b\u4e869\u4e2a\u57fa\u672c\u6a21\u5f0f\uff1a
\n1\uff0c\u4fe1\u606f\u4e13\u5bb6 (Information expert)<\/a>
\n2\uff0c\u521b\u5efa\u8005 \uff08Creator) <\/a>
\n3\uff0c\u9ad8\u5185\u805a (High Cohesion)<\/a>
\n4\uff0c\u4f4e\u8026\u5408 (Low coupling)<\/a>
\n5\uff0c\u63a7\u5236\u5668 (Controller)<\/a>
\n6\uff0c\u591a\u6001\u6027 (Polymorphism)<\/a>
\n7\uff0c\u7eaf\u865a\u6784 (Pure Fabrication)<\/a>
\n8\uff0c\u95f4\u63a5\u6027 (Indirection)<\/a>
\n9\uff0c\u53d8\u5316\u9884\u9632 (Protected Variations)<\/a>
\nGRASP\u7684\u4e3b\u8981\u7279\u5f81\uff1a
\n\u2013 \u5bf9\u8c61\u804c\u8d23\u5206\u914d\u7684\u57fa\u672c\u539f\u5219\u3002
\n\u2013 \u4e3b\u8981\u5e94\u7528\u5728\u5206\u6790\u548c\u5efa\u6a21\u4e0a\u3002
\nGRASP\u7684\u6838\u5fc3\u601d\u60f3\u7684\u7406\u89e3\uff1a
\n\u81ea\u5df1\u5e72\u81ea\u5df1\u7684\u4e8b\uff08\u804c\u8d23\u7684\u5206\u914d\uff09
\n\u81ea\u5df1\u5e72\u81ea\u5df1\u7684\u80fd\u5e72\u7684\u4e8b\uff08\u804c\u8d23\u7684\u5206\u914d\uff09
\n\u81ea\u5df1\u53ea\u5e72\u81ea\u5df1\u7684\u4e8b\uff08\u804c\u8d23\u7684\u5185\u805a\uff09<\/p>\n

\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1<\/div>\n

\u6240\u8c13\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\uff0c\u5c31\u662f\u5728\u7cfb\u7edf\u8bbe\u8ba1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u628a\u7cfb\u7edf\u5206\u6210\u76f8\u5bf9\u72ec\u7acb\u4f46\u53c8\u4e92\u76f8\u8054\u7cfb\u7684\u5bf9\u8c61\u7ec4\u5408\u7684\u4e00\u79cd\u8bbe\u8ba1\u65b9\u6cd5\u3002
\n\u5bf9\u8c61\u5177\u6709\u5c5e\u6027\u548c \u884c\u4e3a\uff0c\u5bf9\u8c61\u95f4\u901a\u8fc7\u6d88\u606f\u8fdb\u884c\u4ea4\u4e92\uff08\u534f\u4f5c\uff09\u3002<\/p>\n

\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u4e00\u822c\u6709\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u6b65\u9aa4\uff1a<\/h3>\n

1\uff0c\u53d1\u73b0\u5bf9\u8c61\u3002\u627e\u51fa\u7cfb\u7edf\u5e94\u8be5\u7531\u54ea\u4e9b\u5bf9\u8c61\u6784\u6210\u3002
\n2\uff0c\u5bf9\u8c61\u7684\u5c5e\u6027\u3002\u5bf9\u8c61\u5177\u6709\u54ea\u4e9b\u5c5e\u6027\u3002
\n3\uff0c\u5bf9\u8c61\u7684\u884c\u4e3a\u3002\u5bf9\u8c61\u5177\u6709 \u54ea\u4e9b\u884c\u4e3a\uff0c\u6216\u8005\u8bf4\u5bf9\u8c61\u9700\u8981\u505a\u4ec0\u4e48\uff0c\u5b83\u7684\u804c\u8d23\u662f\u4ec0\u4e48\u3002
\n4\uff0c\u5bf9\u8c61\u7684\u5173\u7cfb\u3002\u5bf9\u8c61\u4e0e\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\u4ec0\u4e48\uff0c\u600e\u6837\u8fdb\u884c\u4ea4\u4e92\uff0c\u534f\u4f5c\u7b49\u7b49\u3002<\/p>\n

\u53d1\u73b0\u5bf9\u8c61<\/h4>\n

\u5bf9\u8c61\u7684\u53d1\u73b0\u8d85\u51fa\u4e86\u672c\u6587\u7684\u8ba8\u8bba\u8303\u56f4\u3002\u6211\u4eec\u7b80\u5355\u5730\u4ecb\u7ecd\u4e00\u4e0b\u5bf9\u8c61\u53d1\u73b0\u7684\u8fc7\u7a0b\u4e0e\u624b\u6bb5\u3002
\n\u4e00\u822c\u610f\u4e49\u4e0a\u7684\u5bf9\u8c61\u662f\u73b0\u5b9e\u4e16\u754c\u4e0a\u7269\u4f53\u7684\u62bd \u8c61\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u73b0\u5b9e\u4e16\u754c\u91cc\u6709\u4ec0\u4e48\u7269\u4f53\uff0c\u5c31\u6709\u4ec0\u4e48\u5bf9\u8c61\uff1b\u7269\u4f53\u5b58\u5728\u4ec0\u4e48\u5c5e\u6027\uff0c\u5bf9\u8c61\u5c31\u6709\u4ec0\u4e48\u5c5e\u6027\u3002
\n\u6211\u4eec\u53ef\u4ee5\u7528\u201c\u540d\u8bcd\u7b5b\u9009\u6cd5\u201d\u6765\u53d1\u73b0\u7cfb\u7edf\u7684\u5bf9\u8c61\u3002
\n\u6bd4 \u5982\uff0c\u4e00\u4e2a\u5b66\u751f\u8003\u8bd5\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf\uff0c\u6709\u4ee5\u4e0b\u7b80\u5355\u7684\u7528\u4f8b\uff1a
\n\u2013 \u7ba1\u7406\u5458\u521b\u5efa\u9898\u5e93\uff08\u628a\u9898\u6761\u52a0\u5165\u9898\u5e93\uff09
\n\u2013 \u7cfb\u7edf\u6839\u636e\u7ba1\u7406\u5458\u8f93\u5165\u7684\u67d0\u4e9b\u6761\u4ef6\u968f\u673a\u751f\u6210\u8bd5\u9898
\n\u2013 \u5b66\u751f\u6210\u7ee9\u5165\u5e93\u4e0e\u7ba1\u7406
\n\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5b57\u9762\u610f\u601d\u627e\u51fa\u540d\u8bcd\uff0c\u5c31\u53ef\u4ee5\u627e\u51fa\u201c\u7ba1\u7406\u5458\u201d\uff0c\u201c\u9898\u6761\u201d\uff0c\u201c\u9898\u5e93\u201d\uff0c\u201c\u8bd5\u9898\u201d\uff0c\u201c\u5b66\u751f\u201d\uff0c\u201c\u5b66\u751f\u6210\u7ee9\u201d\u7b49\u51e0\u4e2a\u5bf9\u8c61\u3002
\n\u4e00 \u822c\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff08\u540d\u8bcd\u7b5b\u9009\u6cd5\uff09\u5c31\u53ef\u4ee5\u627e\u51fa\u7cfb\u7edf\u7684\u7edd\u5927\u90e8\u5206\u5bf9\u8c61\u3002<\/p>\n

\u5bf9\u8c61\u884c\u4e3a<\/h4>\n

\u884c\u4e3a\u662f\u5bf9\u8c61\u5e94\u8be5\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u4e5f\u5c31\u662f\u5bf9\u8c61\u7684\u804c\u8d23\u3002\u5bf9\u8c61\u5177\u6709\u54ea\u4e9b\u804c\u8d23\u5462\uff1f\u76f8\u5bf9\u4e8e\u4e0a\u9762\u6240\u8bf4\u7684\u201c\u540d\u8bcd\u7b5b\u9009\u6cd5\u201d\uff0c\u53ef\u4ee5\u7b80\u5355\u5730\u7528\u201c\u52a8\u8bcd\u7b5b \u9009\u6cd5\u201d\u6765\u53d1\u73b0\u201c\u5bf9\u8c61\u7684\u884c\u4e3a\u201d\u3002
\n\u6bd4\u5982\uff0c\u4e0a\u9762\u7684\u201c\u5b66\u751f\u8003\u8bd5\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf\u201d\u4e00\u4f8b\u4e2d\uff0c\u6709\u201c\u521b\u5efa\u9898\u5e93\u201d\uff0c\u201c\u8f93\u5165\uff08\u6761\u4ef6\uff09\u201d\uff0c\u201c\u751f\u6210\u8bd5\u9898\u201d\uff0c\u201c\u6210\u7ee9\u5165\u5e93\u201d\uff0c \u201c\u6210\u7ee9\u7ba1\u7406\u201d\u7b49\u52a8\u8bcd\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u7cfb\u7edf\u7684\u5bf9\u8c61\u81f3\u5c11\u5177\u6709\u4ee5\u4e0a\u8fd9\u4e9b\u884c\u4e3a\uff08\u6216\u804c\u8d23\uff09\u3002
\n\u6709\u65f6\uff0c\u6211\u4eec\u53ef\u80fd\u8fd8\u4f1a\u53d1\u73b0\u67d0\u4e9b\u201c\u884c\u4e3a\u201d\u7684\u7c92\u5ea6\u8fc7\u5927\uff0c\u8fd9\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8fdb\u4e00 \u6b65\u7ec6\u5316\u7528\u4f8b\u7684\u63cf\u8ff0\uff0c\u6765\u53d1\u73b0\u66f4\u591a\u66f4\u7ec6\u7684\u201c\u884c\u4e3a\u201d\u3002\u8fd9\u91cc\u4e0d\u518d\u8be6\u8ff0\u3002
\n\u95ee\u98981\uff1a\u627e\u51fa\u5bf9\u8c61\u7684\u884c\u4e3a\uff08\u804c\u8d23\uff09\u4e4b\u540e\uff0c\u600e\u4e48\u6837\u5206\u914d\u8fd9\u4e9b\u884c\u4e3a\u5462\uff1f\u4e5f\u5c31\u662f\u8bf4\u600e\u4e48 \u786e\u8ba4\u201c\u884c\u4e3a\u201d\u5c5e\u4e8e\u54ea\u4e2a\u5bf9\u8c61\u5462\uff1f<\/p>\n

\u5bf9\u8c61\u5173\u7cfb<\/h4>\n

\u7cfb\u7edf\u7684\u6240\u6709\u5bf9\u8c61\u4e0d\u53ef\u80fd\u662f\u4e00\u4e2a\u4e2a\u5355\u72ec\u5b58\u5728\u6beb\u65e0\u5173\u7cfb\u7684\u4e2a\u4f53\uff0c\u5b83\u4eec\u6216\u591a\u6216\u5c11\u7684\u6709\u7740\u5404\u79cd\u8054\u7cfb\uff08\u534f\u4f5c\u5173\u7cfb\uff09\u3002
\n\u95ee\u98982\uff1a \u5982\u679c2\u4e2a\u5bf9\u8c61\u4e4b\u95f4\u6709\u534f\u4f5c\u5173\u7cfb\uff0c\u4ed6\u4eec\u4e4b\u95f4\u6700\u597d\u901a\u8fc7\u4ec0\u4e48\u6837\u7684\u65b9\u5f0f\u534f\u4f5c\u5462\uff1f
\n\u5bf9\u8c61\u6269\u5c55\u7279\u6027
\n\u95ee\u98983\uff1a\u5df2\u7ecf\u88ab\u62bd\u8c61\u51fa\u6765\u7684\u5bf9\u8c61\uff0c\u5982\u4f55\u9762\u5bf9\u5c06\u6765\u53ef \u80fd\u53d1\u751f\u7684\u53d8\u5316\u5462\uff1f
\nGRASP\u63d0\u51fa9\u4e2a\u57fa\u672c\u6a21\u5f0f\uff0c\u7528\u4e8e\u89e3\u51b3\u4ee5\u4e0a\u8bbe\u8ba1\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u5404\u79cd\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8f6c\u8f7d\u5730\u5740\uff1ahttp:\/\/www.lifevv.com\/sysdesign\/doc\/20071211214255 […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[12,17],"tags":[44,49],"_links":{"self":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/149"}],"collection":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=149"}],"version-history":[{"count":0,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/149\/revisions"}],"wp:attachment":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}