{"id":3038,"date":"2020-09-08T14:17:36","date_gmt":"2020-09-08T06:17:36","guid":{"rendered":"http:\/\/www.yuguoxy.com\/geekhome\/?p=3038"},"modified":"2020-09-16T20:42:37","modified_gmt":"2020-09-16T12:42:37","slug":"%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f-%e7%ad%96%e7%95%a5%e6%a8%a1%e5%bc%8f%ef%bc%9a%e4%bc%9a%e5%91%98%e4%bb%b7%e6%a0%bc%e4%bd%93%e7%b3%bb%e7%9a%84%e7%ae%80%e5%8d%95%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=3038","title":{"rendered":"\u8bbe\u8ba1\u6a21\u5f0f\u2014\u2014\u7b56\u7565\u6a21\u5f0f\uff1a\u4f1a\u5458\u4ef7\u683c\u4f53\u7cfb\u7684\u7b80\u5355\u5b9e\u73b0"},"content":{"rendered":"

 <\/p>\n

\u524d\u8a00<\/h2>\n

\"172010_Fcrk_2249566\"<\/a><\/p>\n

\u4e0a\u9762\u8fd9\u5f20\u56fe\u662f\u4eac\u4e1c\u5546\u57ce\u7684\u4f1a\u5458\u4f53\u7cfb\uff0c\u603b\u5171\u5305\u542b\u4e94\u79cd\u4e0d\u540c\u7b49\u7ea7\u7684\u4f1a\u5458\uff0c\u5206\u522b\u662f\u6ce8\u518c\u4f1a\u5458\uff0c\u94dc\u724c\u4f1a\u5458\uff0c\u94f6\u724c\u4f1a\u5458\uff0c\u9ec4\u91d1\u4f1a\u5458\uff0c\u94bb\u77f3\u4f1a\u5458\u3002\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u4e0d\u540c\u7b49\u7ea7\u4f1a\u5458\u4eab\u6709\u4e0d\u540c\u7684\u4f18\u60e0\u670d\u52a1\uff0c\u90a3\u4e48\u8fd9\u4e48\u591a\u4f18\u60e0\u670d\u52a1\u5728\u7a0b\u5e8f\u4e2d\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u5462\uff1f\u6700\u76f4\u63a5\u4e86\u5f53\u7684\u65b9\u5f0f\uff0c\u5c31\u662f\u5199\u4e00\u5806if else\u53bb\u505a\u5224\u65ad\uff0c\u8fd9\u663e\u7136\u4e0d\u662f\u6700\u4f73\u5b9e\u73b0\u65b9\u5f0f\uff0c\u5f88\u4e0d\u5229\u4e8e\u540e\u671f\u7ef4\u62a4\u3002\u5b9e\u9645\u4e0a\u8fd9\u91cc\u9700\u8981\u7528\u5230\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u7b56\u7565\u6a21\u5f0f\uff0c\u9488\u5bf9\u4e0d\u540c\u7b49\u7ea7\u7684\u4f1a\u5458\uff0c\u6bcf\u4e00\u79cd\u4f1a\u5458\u7279\u6743\u90fd\u62d2\u7528\u4e0d\u540c\u7684\u4f18\u60e0\u7b56\u7565\u3002<\/p>\n

\u7b56\u7565\u6a21\u5f0f<\/strong><\/h2>\n

\u5b9a\u4e49\u7b97\u6cd5\u7c07\uff0c\u5206\u522b\u5c01\u88c5\u8d77\u6765\uff0c\u8ba9\u4ed6\u4eec\u4e4b\u95f4\u53ef\u4ee5\u4e92\u76f8\u66ff\u6362\uff0c\u6b64\u6a21\u5f0f\u8ba9\u7b97\u6cd5\u7684\u53d8\u5316\u72ec\u7acb\u4e8e\u4f7f\u7528\u7b97\u6cd5\u7684\u5ba2\u6237\u3002<\/p>\n

\u7b56\u7565\u6a21\u5f0f\u7ed3\u6784\u539f\u578b<\/strong><\/h3>\n

\"095925_c5AT_2249566\"<\/a><\/p>\n

\u7b56\u7565\u6a21\u5f0f\u7684\u7ec4\u6210<\/strong><\/h3>\n

\u5e94\u7528\u573a\u666f\uff08Context\uff09\uff1a<\/p>\n

1\u3001\u9700\u8981\u4f7f\u7528ConcreteStrategy\u63d0\u4f9b\u7684\u7b97\u6cd5\u3002<\/p>\n

2\u3001 \u5185\u90e8\u7ef4\u62a4\u4e00\u4e2aStrategy\u7684\u5b9e\u4f8b\u3002<\/p>\n

3\u3001 \u8d1f\u8d23\u52a8\u6001\u8bbe\u7f6e\u8fd0\u884c\u65f6Strategy\u5177\u4f53\u7684\u5b9e\u73b0\u7b97\u6cd5\u3002<\/p>\n

4\u3001\u8d1f\u8d23\u8ddfStrategy\u4e4b\u95f4\u7684\u4ea4\u4e92\u548c\u6570\u636e\u4f20\u9012\u3002<\/p>\n

\u62bd\u8c61\u7b56\u7565\uff08StrategyInterface\uff09\uff1a \u5b9a\u4e49\u4e86\u4e00\u4e2a\u516c\u5171\u63a5\u53e3\uff0c\u5404\u79cd\u4e0d\u540c\u7684\u7b97\u6cd5\u4ee5\u4e0d\u540c\u7684\u65b9\u5f0f\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\uff0cContext\u4f7f\u7528\u8fd9\u4e2a\u63a5\u53e3\u8c03\u7528\u4e0d\u540c\u7684\u7b97\u6cd5\uff0c\u4e00\u822c\u4f7f\u7528\u63a5\u53e3\u6216\u62bd\u8c61\u7c7b\u5b9e\u73b0\u3002<\/p>\n

\u5177\u4f53\u7b56\u7565\uff08Strategy\uff09\uff1a\u5305\u88c5\u4e86\u76f8\u5173\u7684\u7b97\u6cd5\u548c\u884c\u4e3a\u3002<\/p>\n

\u5177\u4f53\u5e94\u7528\u573a\u666f<\/h2>\n

\u5177\u4f53\u7b56\u7565\u5212\u5206<\/h3>\n

\u6211\u4eec\u73b0\u5728\u6765\u6a21\u4eff\u4eac\u4e1c\u4f1a\u5458\u673a\u5236\uff0c\u5c06\u4f1a\u5458\u5206\u4e3a\u4e09\u79cd\u7b49\u7ea7\uff1a\u666e\u901a\u4f1a\u5458\uff0c\u91d1\u724c\u4f1a\u5458\uff0c\u94bb\u77f3\u4f1a\u5458\u3002\u4ee5\u4e0b\u4e3a\u4f1a\u5458\u4f18\u60e0\u670d\u52a1\uff0c\u4e0d\u540c\u7b49\u7ea7\u7684\u4f1a\u5458\u62e5\u6709\u4e0d\u540c\u7684\u4f18\u60e0\u7b56\u7565\uff1a<\/p>\n

\n\n\n\n\n\n\n
\u4f18\u60e0\u670d\u52a1\\\u4f1a\u5458\u7b49\u7ea7<\/strong><\/th>\n\u666e\u901a\u4f1a\u5458<\/strong><\/th>\n\u9ec4\u91d1\u4f1a\u5458<\/strong><\/th>\n\u94bb\u77f3\u4f1a\u5458<\/strong><\/th>\n<\/tr>\n<\/thead>\n
\u4f1a\u5458\u7279\u4ef7<\/td>\n\u6b63\u5e38\u4ef7<\/td>\n\u6253\u4e5d\u6298<\/td>\n\u6253\u4e5d\u6298<\/td>\n<\/tr>\n
\u8fd0\u8d39<\/td>\n5\u5143<\/td>\n5\u5143<\/td>\n\u5305\u90ae<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u4f1a\u5458\u7b56\u7565\u6a21\u578b<\/h3>\n

\"105153_Vrv1_2249566\"<\/a><\/p>\n

\u4ee3\u7801\u5b9e\u73b0<\/h2>\n

\u62bd\u8c61\u7b56\u7565\u89d2\u8272<\/strong><\/h3>\n

\u4f1a\u5458\u63a5\u53e3\uff1aMemberInterface.java<\/p>\n

package strategy.member;\r\n\/**\r\n * \u4f1a\u5458\u63a5\u53e3\r\n * @author vision\r\n *\/\r\npublic interface MemberInterface {\r\n\t\/**\r\n\t * \u4f1a\u5458\u4ef7\u683c\r\n\t * @param price\r\n\t * @return\r\n\t *\/\r\n\tpublic Double getPrice(Double price);\r\n\t\/**\r\n\t * \u662f\u5426\u5305\u90ae\r\n\t * @return\r\n\t *\/\r\n\tpublic boolean freeShipping();\r\n}\r\n<\/code><\/pre>\n
\u5177\u4f53\u7b56\u7565\u89d2\u8272<\/strong><\/h3>\n
\u666e\u901a\u4f1a\u5458\uff1aNormalMember.java<\/p>\n
package strategy.member.impl;\r\n\r\nimport strategy.member.MemberInterface;\r\n\/**\r\n * \u666e\u901a\u4f1a\u5458\r\n * @author vision\r\n *\/\r\npublic class NormalMember implements MemberInterface{\r\n\t\/**\r\n\t * \u4f1a\u5458\u4ef7\u683c\uff0c\u6b63\u5e38\u4ef7\r\n\t *\/\r\n\tpublic Double getPrice(Double price) {\r\n\t\t\/\/\u666e\u901a\u4f1a\u5458\u539f\u4ef7\u9500\u552e\r\n\t\treturn price;\r\n\t}\r\n\t\/**\r\n\t * \u4e0d\u5305\u90ae\r\n\t *\/\r\n\tpublic boolean freeShipping() {\r\n\t\t\/\/\u666e\u901a\u4f1a\u5458\u4e0d\u5305\u90ae\r\n\t\treturn false;\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u9ec4\u91d1\u4f1a\u5458\uff1aGoldMember.java<\/p>\n
package strategy.member.impl;\r\n\r\nimport strategy.member.MemberInterface;\r\n\/**\r\n * \u9ec4\u91d1\u4f1a\u5458\r\n * @author vision\r\n *\/\r\npublic class GoldMember implements MemberInterface{\r\n\t\/**\r\n\t * \u4f1a\u5458\u4ef7\u683c\uff0c\u6253\u4e5d\u6298\r\n\t *\/\r\n\tpublic Double getPrice(Double price) {\r\n\t\treturn price*0.9;\r\n\t}\r\n\t\/**\r\n\t * \u4e0d\u5305\u90ae\r\n\t *\/\r\n\tpublic boolean freeShipping() {\r\n\t\treturn false;\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n
\u94bb\u77f3\u4f1a\u5458\uff1aDiamondMember.java<\/p>\n
package strategy.member.impl;\r\n\r\nimport strategy.member.MemberInterface;\r\n\/**\r\n * \u94bb\u77f3\u4f1a\u5458\r\n * @author vision\r\n *\/\r\npublic class DiamondMember implements MemberInterface{\r\n\t\/**\r\n\t * \u4f1a\u5458\u4ef7\u683c\uff0c\u6253\u4e5d\u6298\r\n\t *\/\r\n\tpublic Double getPrice(Double price) {\r\n\t\treturn price*0.9;\r\n\t}\r\n\t\/**\r\n\t * \u5305\u90ae\r\n\t *\/\r\n\tpublic boolean freeShipping() {\r\n\t\treturn true;\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u73af\u5883\u89d2\u8272<\/strong><\/h3>\n
PriceHandle.java<\/p>\n
package strategy;\r\n\r\nimport strategy.member.MemberInterface;\r\nimport strategy.member.impl.DiamondMember;\r\nimport strategy.member.impl.GoldMember;\r\nimport strategy.member.impl.NormalMember;\r\n\/**\r\n * \u4ef7\u683c\u5904\u7406\u7c7b\r\n * @author vision\r\n * @date 2016\u5e7410\u670812\u65e5\r\n *\/\r\npublic class PriceHandle {\r\n\t\r\n\tprivate MemberInterface memberInterface;\r\n\r\n\tpublic void setMemberInterface(MemberInterface memberInterface) {\r\n\t\tthis.memberInterface = memberInterface;\r\n\t}\r\n\r\n\t\/**\r\n\t * \u8ba1\u7b97\u51fa\u9700\u8981\u652f\u4ed8\u7684\u8d39\u7528\r\n\t * @return\r\n\t *\/\r\n\tprivate Double getMemberPrice(Double price){\r\n\t\tDouble postage=5.0;\r\n\t\tif(memberInterface.freeShipping()){\r\n\t\t\tpostage=0.0;\r\n\t\t}\r\n\t\treturn (memberInterface.getPrice(price)+postage);\r\n\t}\r\n}\r\n<\/code><\/pre>\n
\u5ba2\u6237\u7aef\u8c03\u7528<\/strong><\/h3>\n
public class TestClass{\r\n\tpublic static void main(String[] args) {\r\n\t\tPriceHandle priceHandle=new PriceHandle();\r\n\t\t\/\/\u4f1a\u5458\u7b49\u7ea7\uff080\u666e\u901a\u4f1a\u5458,1\u9ec4\u91d1\u4f1a\u5458,2\u94bb\u77f3\u4f1a\u5458\uff09\r\n\t\tint memberType=2;\r\n\t\tswitch (memberType) {\r\n\t\tcase 0:\r\n\t\t\tpriceHandle.setMemberInterface(new NormalMember());\r\n\t\t\tbreak;\r\n\t\tcase 1:\r\n\t\t\tpriceHandle.setMemberInterface(new GoldMember());\r\n\t\t\tbreak;\r\n\t\tcase 2:\r\n\t\t\tpriceHandle.setMemberInterface(new DiamondMember());\r\n\t\t\tbreak;\r\n\t\t}\r\n\t\tSystem.out.println(priceHandle.getMemberPrice(10.0));;\r\n\t}\r\n}\r\n<\/code><\/pre>\n
\u5907\u6ce8<\/h2>\n
\u53c2\u8003\u8d44\u6599\uff1a\u300aHead First \u8bbe\u8ba1\u6a21\u5f0f\u300b<\/p>\n","protected":false},"excerpt":{"rendered":"
  \u524d\u8a00 \u4e0a\u9762\u8fd9\u5f20\u56fe\u662f\u4eac\u4e1c\u5546\u57ce\u7684\u4f1a\u5458\u4f53\u7cfb\uff0c\u603b\u5171\u5305\u542b\u4e94\u79cd\u4e0d\u540c\u7b49\u7ea7\u7684\u4f1a\u5458\uff0c\u5206\u522b\u662f\u6ce8\u518c\u4f1a\u5458\uff0c\u94dc\u724c\u4f1a\u5458\uff0c\u94f6\u724c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,58],"tags":[],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3038"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3038"}],"version-history":[{"count":1,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3038\/revisions"}],"predecessor-version":[{"id":3042,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3038\/revisions\/3042"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}