{"id":1125,"date":"2023-03-16T21:25:23","date_gmt":"2023-03-16T13:25:23","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1125"},"modified":"2023-04-29T10:02:11","modified_gmt":"2023-04-29T02:02:11","slug":"design-pattern-visitor-pattern","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/16\/design-pattern-visitor-pattern\/","title":{"rendered":"\u8bbe\u8ba1\u6a21\u5f0f\uff0816\uff09\u8bbf\u95ee\u8005\u6a21\u5f0f"},"content":{"rendered":"

\u8bbf\u95ee\u8005\u6a21\u5f0f\u662f\u4e00\u79cd\u884c\u4e3a\u578b\u6a21\u5f0f\uff0c\u5b83\u662f23\u79cd\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u6700\u590d\u6742\u7684\u4e00\u4e2a\uff0c\u867d\u7136\u4f7f\u7528\u9891\u7387\u4e0d\u9ad8\uff0c\u4f46\u662f\u5e76\u4e0d\u4ee3\u8868\u53ef\u4ee5\u5ffd\u7565\uff0c\u5728\u5408\u9002\u7684\u5730\u65b9\uff0c\u5b83\u4f1a\u5e26\u6765\u610f\u60f3\u4e0d\u5230\u7684\u7075\u6d3b\u6027\u3002\u8bbf\u95ee\u8005\u6a21\u5f0f\uff0c\u987e\u540d\u601d\u4e49\u4f7f\u7528\u4e86\u8fd9\u4e2a\u6a21\u5f0f\u540e\u5c31\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u5df2\u6709\u7a0b\u5e8f\u7ed3\u6784\u7684\u524d\u63d0\u4e0b\uff0c\u901a\u8fc7\u6dfb\u52a0\u989d\u5916\u7684\u201c\u8bbf\u95ee\u8005\u201d\u6765\u5b8c\u6210\u5bf9\u5df2\u6709\u4ee3\u7801\u529f\u80fd\u7684\u63d0\u5347\u3002<\/p>\n

<\/p>\n

\u5b9a\u4e49<\/h2>\n

\u5c01\u88c5\u4e00\u4e9b\u4f5c\u7528\u4e8e\u67d0\u79cd\u6570\u636e\u7ed3\u6784\u4e2d\u7684\u5404\u5143\u7d20\u7684\u64cd\u4f5c\uff0c\u5b83\u53ef\u4ee5\u5728\u4e0d\u6539\u53d8\u8fd9\u4e2a\u6570\u636e\u7ed3\u6784\u7684\u524d\u63d0\u4e0b\u5b9a\u4e49\u4f5c\u7528\u4e8e\u8fd9\u4e9b\u5143\u7d20\u7684\u65b0\u7684\u64cd\u4f5c\u3002<\/p>\n

\u4f7f\u7528\u573a\u666f<\/h2>\n

\uff081\uff09\u5bf9\u8c61\u7ed3\u6784\u6bd4\u8f83\u7a33\u5b9a\uff0c\u4f46\u7ecf\u5e38\u9700\u8981\u5728\u6b64\u5bf9\u8c61\u7ed3\u6784\u4e0a\u5b9a\u4e49\u65b0\u7684\u64cd\u4f5c\u3002
\n\uff082\uff09\u9700\u8981\u5bf9\u4e00\u4e2a\u5bf9\u8c61\u7ed3\u6784\u4e2d\u7684\u5bf9\u8c61\u8fdb\u884c\u5f88\u591a\u4e0d\u540c\u7684\u4e14\u4e0d\u76f8\u5173\u7684\u64cd\u4f5c\uff0c\u800c\u9700\u8981\u907f\u514d\u8fd9\u4e9b\u64cd\u4f5c\u201c\u6c61\u67d3\u201d\u8fd9\u4e9b\u5bf9\u8c61\u7684\u7c7b\uff0c\u4e5f\u4e0d\u5e0c\u671b\u5728\u589e\u52a0\u65b0\u64cd\u4f5c\u65f6\u4fee\u6539\u8fd9\u4e9b\u7c7b\u3002<\/p>\n

UML\u7c7b\u56fe<\/h2>\n

\uff081\uff09Visitor<\/code>\uff1a\u63a5\u53e3\u6216\u8005\u62bd\u8c61\u7c7b\uff0c\u5b83\u5b9a\u4e49\u4e86\u5bf9\u6bcf\u4e00\u4e2a\u5143\u7d20\uff08Element\uff09\u8bbf\u95ee\u7684\u884c\u4e3a\uff0c\u5b83\u7684\u53c2\u6570\u5c31\u662f\u53ef\u4ee5\u8bbf\u95ee\u7684\u5143\u7d20\uff0c\u5b83\u7684\u65b9\u6cd5\u6570\u7406\u8bba\u4e0a\u6765\u8bb2\u4e0e\u5143\u7d20\u4e2a\u6570\u662f\u4e00\u6837\u7684\uff0c\u56e0\u6b64\uff0c\u8bbf\u95ee\u8005\u6a21\u5f0f\u8981\u6c42\u5143\u7d20\u7684\u7c7b\u65cf\u8981\u7a33\u5b9a\uff0c\u5982\u679c\u7ecf\u5e38\u6dfb\u52a0\u3001\u79fb\u9664\u5143\u7d20\u7c7b\uff0c\u5fc5\u7136\u4f1a\u5bfc\u81f4\u9891\u7e41\u5730\u4fee\u6539Visitor\u63a5\u53e3\uff0c\u5982\u679c\u8fd9\u6837\u5219\u4e0d\u9002\u5408\u4f7f\u7528\u8bbf\u95ee\u8005\u6a21\u5f0f\u3002
\n\uff082\uff09ConcreteVisitor1<\/code>\u3001ConcreteVisitor2<\/code>\uff1a\u5177\u4f53\u7684\u8bbf\u95ee\u7c7b\uff0c\u5b83\u9700\u8981\u7ed9\u51fa\u5bf9\u6bcf\u4e00\u4e2a\u5143\u7d20\u7c7b\u8bbf\u95ee\u65f6\u6240\u4ea7\u751f\u7684\u5177\u4f53\u884c\u4e3a\u3002
\n\uff083\uff09Element<\/code>\uff1a\u5143\u7d20\u63a5\u53e3\u6216\u8005\u62bd\u8c61\u7c7b\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e2a\u63a5\u53d7\u8bbf\u95ee\u8005\u7684\u65b9\u6cd5\uff08Accept\uff09\uff0c\u5176\u610f\u4e49\u662f\u6307\u6bcf\u4e00\u4e2a\u5143\u7d20\u90fd\u8981\u53ef\u4ee5\u88ab\u8bbf\u95ee\u8005\u8bbf\u95ee\u3002
\n\uff084\uff09ConcreteElementA<\/code>\u3001ConcreteElementB<\/code>\uff1a\u5177\u4f53\u7684\u5143\u7d20\u7c7b\uff0c\u5b83\u63d0\u4f9b\u63a5\u53d7\u8bbf\u95ee\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0\uff0c\u800c\u8fd9\u4e2a\u5177\u4f53\u7684\u5b9e\u73b0\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\u662f\u4f7f\u7528\u8bbf\u95ee\u8005\u63d0\u4f9b\u7684\u8bbf\u95ee\u8be5\u5143\u7d20\u7c7b\u7684\u65b9\u6cd5\u3002
\n\uff085\uff09ObjectStructure<\/code>\uff1a\u5b9a\u4e49\u5f53\u4e2d\u6240\u8bf4\u7684\u5bf9\u8c61\u7ed3\u6784\uff0c\u5bf9\u8c61\u7ed3\u6784\u662f\u4e00\u4e2a\u62bd\u8c61\u8868\u8ff0\uff0c\u5b83\u5185\u90e8\u7ba1\u7406\u4e86\u5143\u7d20\u96c6\u5408\uff0c\u5e76\u4e14\u53ef\u4ee5\u8fed\u4ee3\u8fd9\u4e9b\u5143\u7d20\u4f9b\u8bbf\u95ee\u8005\u8bbf\u95ee\u3002<\/p>\n

\u7b80\u5355\u5b9e\u73b0<\/h2>\n

\u60c5\u666f\uff1a\u5e74\u7ec8\u4e86\uff0c\u516c\u53f8\u4f1a\u7ed9\u5458\u5de5\u8fdb\u884c\u4e1a\u7ee9\u8003\u6838\u3002\u4f46\u662f\uff0c\u4e0d\u540c\u9886\u57df\u7684\u7ba1\u7406\u4eba\u5458\u5bf9\u4e8e\u5458\u5de5\u7684\u8bc4\u5b9a\u6807\u51c6\u4e0d\u4e00\u6837\u3002\u73b0\u5728\u5458\u5de5\u6709\u653b\u57ce\u72ee\u548c\u7ecf\u7406\uff0c\u8bc4\u5b9a\u8005\u6709CEO\u548cCTO\uff0c\u6211\u4eec\u5047\u5b9aCTO\u53ea\u5173\u6ce8\u653b\u57ce\u72ee\u7684\u4ee3\u7801\u91cf\u3001\u7ecf\u7406\u7684\u65b0\u4ea7\u54c1\u6570\u91cf\uff0c\u800cCEO\u5173\u6ce8\u7684\u662f\u653b\u57ce\u72ee\u7684KPI\u548c\u7ecf\u7406\u7684KPI\u4ee5\u53ca\u65b0\u4ea7\u54c1\u6570\u91cf\u3002<\/p>\n

\u5458\u5de5\u57fa\u7c7b\uff1a<\/p>\n

\/**\n * \u5458\u5de5\u57fa\u7c7b\uff08Element\uff09 \n *\/\npublic abstract class Staff {\n    \/\/\u5458\u5de5\u59d3\u540d\n    public String name;\n    \/\/\u5458\u5de5KPI\n    public int kpi;\n\n    public Staff(String name) {\n        super();\n        this.name = name;\n        this.kpi = new Random().nextInt(10);\n    }\n    \/\/\u63a5\u53d7Visitor\u7684\u8bbf\u95ee\n    public abstract void accept(Visitor visitor);\n}<\/code><\/pre>\n
\u653b\u57ce\u72ee\uff1a<\/p>\n
\/**\n * \u653b\u57ce\u72ee \n *\/\npublic class Engineer extends Staff {\n\n    private int codeLines; \/\/\u4ee3\u7801\u6570\u91cf\n\n    public Engineer(String name) {\n        super(name);\n        codeLines = new Random().nextInt(10 * 10000);\n    }\n\n    @Override\n    public void accept(Visitor visitor) {\n        visitor.visit(this);\n    }\n\n    \/\/\u653b\u57ce\u72ee\u8fd9\u4e00\u5e74\u5199\u7684\u4ee3\u7801\u6570\u91cf\n    public int getCodeLines(){\n        return codeLines;\n    }\n}<\/code><\/pre>\n
\u7ecf\u7406\uff1a<\/p>\n
\/**\n * \u7ecf\u7406\n *\/\npublic class Manager extends Staff {\n\n    private int products;\/\/\u4ea7\u54c1\u6570\u91cf\n\n    public Manager(String name) {\n        super(name);\n        products = new Random().nextInt(10);\n    }\n\n    @Override\n    public void accept(Visitor visitor) {\n        visitor.visit(this);\n    }\n\n    \/\/\u4e00\u5e74\u5185\u505a\u7684\u4ea7\u54c1\u6570\u91cf\n    public int getProducts(){\n        return products;\n    }\n}<\/code><\/pre>\n
Visitor\u7c7b\uff1a<\/p>\n
public interface Visitor {\n    \/**\n     * \u8bbf\u95ee\u653b\u57ce\u72ee\u7c7b\u578b\n     *\/\n    public void visit(Engineer engineer);\n\n    \/**\n     * \u8bbf\u95ee\u7ecf\u7406\u7c7b\u578b\n     *\/\n    public void visit(Manager manager);\n}<\/code><\/pre>\n
CEO\u8bbf\u95ee\u8005\uff1a<\/p>\n
public class CEOVisitor implements Visitor {\n\n    @Override\n    public void visit(Engineer engineer) {\n        System.out.println("\u653b\u57ce\u72ee\uff1a" + engineer.name + ", KPI:" + engineer.kpi);\n    }\n\n    @Override\n    public void visit(Manager manager) {\n        System.out.println("\u7ecf\u7406\uff1a" + manager.name + ", KPI:" + manager.kpi + ", \u65b0\u4ea7\u54c1\u6570\u91cf \uff1a" + manager.getProducts());\n    }\n}<\/code><\/pre>\n
CTO\u8bbf\u95ee\u7c7b\uff1a<\/p>\n
public class CTOVisitor implements Visitor {\n\n    @Override\n    public void visit(Engineer engineer) {\n        System.out.println("\u653b\u57ce\u72ee\uff1a" + engineer.name + ", \u4ee3\u7801\u6570\u91cf:" + engineer.getCodeLines());\n    }\n\n    @Override\n    public void visit(Manager manager) {\n        System.out.println("\u7ecf\u7406\uff1a" + manager.name +", \u4ea7\u54c1\u6570\u91cf \uff1a" + manager.getProducts());\n    }\n}<\/code><\/pre>\n
\u5458\u5de5\u62a5\u8868\u7c7b\uff1a<\/p>\n
\/\/\u5458\u5de5\u4e1a\u52a1\u62a5\u8868\u7c7b\uff08ObjectStructure\uff09\npublic class BusinessReport {\n\n    List<Staff> mStaffs = new LinkedList<Staff>();\n\n    public BusinessReport() {\n        mStaffs.add(new Manager("\u738b\u7ecf\u7406"));\n        mStaffs.add(new Engineer("\u653b\u57ce\u72ee-A"));\n        mStaffs.add(new Engineer("\u653b\u57ce\u72ee-B"));\n        mStaffs.add(new Manager("\u674e\u7ecf\u7406"));\n        mStaffs.add(new Engineer("\u653b\u57ce\u72ee-C"));\n    }\n\n    \/**\n     * \u4e3a\u8bbf\u95ee\u8005\u5c55\u793a\u62a5\u8868 \n     * @param visitor \u5982CEO\u3001CTO\n     *\/\n    public void showReport(Visitor visitor){\n        for(Staff staff : mStaffs){\n            staff.accept(visitor);\n        }\n    }\n}<\/code><\/pre>\n
Client\u8bbf\u95ee\uff1a<\/p>\n
public class Client {\n    public static void main(String[] args) {\n        \/\/\u6784\u5efa\u62a5\u8868\n        BusinessReport report = new BusinessReport();\n        System.out.println("===== \u7ed9CEO\u770b\u62a5\u8868 =====");\n        \/\/\u8bbe\u7f6e\u8bbf\u95ee\u8005CEO\n        report.showReport(new CEOVisitor());\n        System.out.println("===== \u7ed9CTO\u770b\u62a5\u8868 =====");\n        \/\/\u8bbe\u7f6e\u8bbf\u95ee\u8005CTO\n        report.showReport(new CTOVisitor());\n    }\n}<\/code><\/pre>\n
\u7ed3\u679c\uff1a<\/p>\n
===== \u7ed9CEO\u770b\u62a5\u8868 =====\n\u7ecf\u7406\uff1a\u738b\u7ecf\u7406, KPI:2, \u65b0\u4ea7\u54c1\u6570\u91cf \uff1a5\n\u653b\u57ce\u72ee\uff1a\u653b\u57ce\u72ee-A, KPI:5\n\u653b\u57ce\u72ee\uff1a\u653b\u57ce\u72ee-B, KPI:7\n\u7ecf\u7406\uff1a\u674e\u7ecf\u7406, KPI:9, \u65b0\u4ea7\u54c1\u6570\u91cf \uff1a8\n\u653b\u57ce\u72ee\uff1a\u653b\u57ce\u72ee-C, KPI:1\n===== \u7ed9CTO\u770b\u62a5\u8868 =====\n\u7ecf\u7406\uff1a\u738b\u7ecf\u7406, \u4ea7\u54c1\u6570\u91cf \uff1a5\n\u653b\u57ce\u72ee\uff1a\u653b\u57ce\u72ee-A, \u4ee3\u7801\u6570\u91cf:26238\n\u653b\u57ce\u72ee\uff1a\u653b\u57ce\u72ee-B, \u4ee3\u7801\u6570\u91cf:8282\n\u7ecf\u7406\uff1a\u674e\u7ecf\u7406, \u4ea7\u54c1\u6570\u91cf \uff1a8\n\u653b\u57ce\u72ee\uff1a\u653b\u57ce\u72ee-C, \u4ee3\u7801\u6570\u91cf:47927<\/code><\/pre>\n
\u4ece\u4e0a\u9762\u4ee3\u7801\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5982\u679c\u8981\u589e\u52a0\u4e00\u4e2a\u8bbf\u95ee\u8005\uff0c\u4f60\u65b0\u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0\u4e86Visitor\u63a5\u53e3\u7684\u7c7b\uff0c\u7136\u540e\u5b9e\u73b0\u4e24\u4e2avisit\u65b9\u6cd5\u6765\u5bf9\u4e0d\u540c\u7684\u5143\u7d20\u8fdb\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u4ece\u800c\u8fbe\u5230\u6570\u636e\u5bf9\u8c61\u4e0e\u6570\u636e\u64cd\u4f5c\u76f8\u5206\u79bb\u7684\u6548\u679c\u3002\u5982\u679c\u4e0d\u4f7f\u7528\u8bbf\u95ee\u8005\u6a21\u5f0f\uff0c\u800c\u53c8\u60f3\u5bf9\u4e0d\u540c\u5143\u7d20\u8fdb\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u90a3\u4e48\u5fc5\u5b9a\u4f1a\u4f7f\u7528if-else\u548c\u7c7b\u578b\u8f6c\u6362\uff0c\u8fd9\u4f7f\u5f97\u4ee3\u7801\u96be\u4ee5\u5347\u7ea7\u7ef4\u62a4\u3002<\/p>\n
Android\u4e2d\u7684\u8bbf\u95ee\u8005\u6a21\u5f0f<\/h2>\n
\u5b89\u5353\u4e2d\u7684\u8457\u540d\u5f00\u6e90\u5e93ButterKnife<\/code>\u3001Dagger<\/code>\u3001Retrofit<\/code>\u90fd\u662f\u57fa\u4e8eAPT\uff08Annotation Processing Tools\uff09<\/code>\u5b9e\u73b0\u3002\u800c\u7f16\u8bd1\u6ce8\u89e3\u6838\u5fc3\u4f9d\u8d56APT\u3002\u5f53\u6211\u4eec\u901a\u8fc7APT\u5904\u7406\u6ce8\u89e3\u65f6\uff0c\u6700\u7ec8\u4f1a\u5c06\u83b7\u53d6\u5230\u7684\u5143\u7d20\u8f6c\u6362\u4e3a\u76f8\u5e94\u7684Element\u5143\u7d20\uff0c\u4ee5\u4fbf\u83b7\u53d6\u5230\u5b83\u4eec\u5bf9\u5e94\u4fe1\u606f\u3002\u90a3\u4e48\u5143\u7d20\u57fa\u7c7b\u7684\u6e90\u7801\u5982\u4e0b\uff1a\uff08\u8def\u5f84\uff1ajavax.lang.model.element.Element<\/code>\uff09<\/p>\n
public interface Element extends javax.lang.model.AnnotatedConstruct {\n\n    \/**\n     * Returns the {@code kind} of this element.\n     *\n     * @return the kind of this element\n     *\/\n    ElementKind getKind();\/\/\u83b7\u53d6\u5143\u7d20\u7c7b\u578b\n\n    \/\/\u4ee3\u7801\u7701\u7565\n\n    \/**\n     * Applies a visitor to this element.\n     *\n     * @param <R> the return type of the visitor's methods\n     * @param <P> the type of the additional parameter to the visitor's methods\n     * @param v   the visitor operating on this element\n     * @param p   additional parameter to the visitor\n     * @return a visitor-specified result\n     *\/\n    <R, P> R accept(ElementVisitor<R, P> v, P p);\/\/\u63a5\u53d7\u8bbf\u95ee\u8005\u7684\u8bbf\u95ee\n}<\/code><\/pre>\n
ElementVisitor<\/code>\u5c31\u662f\u8bbf\u95ee\u8005\u7c7b\u578b\uff0cElementVisitor<\/code>\u6e90\u7801\u5982\u4e0b\uff1a<\/p>\n
public interface ElementVisitor<R, P> {\n    \/**\n     * Visits an element.\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     *\/\n    R visit(Element e, P p);\n\n    \/**\n     * A convenience method equivalent to {@code v.visit(e, null)}.\n     * @param e  the element to visit\n     * @return a visitor-specified result\n     *\/\n    R visit(Element e);\n\n    \/**\n     * Visits a package element.\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     *\/\n    R visitPackage(PackageElement e, P p);\n\n    \/**\n     * Visits a type element.\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     *\/\n    R visitType(TypeElement e, P p);\n\n    \/**\n     * Visits a variable element.\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     *\/\n    R visitVariable(VariableElement e, P p);\n\n    \/**\n     * Visits an executable element.\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     *\/\n    R visitExecutable(ExecutableElement e, P p);\n\n    \/**\n     * Visits a type parameter element.\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     *\/\n    R visitTypeParameter(TypeParameterElement e, P p);\n\n    \/**\n     * Visits an unknown kind of element.\n     * This can occur if the language evolves and new kinds\n     * of elements are added to the {@code Element} hierarchy.\n     *\n     * @param e  the element to visit\n     * @param p  a visitor-specified parameter\n     * @return a visitor-specified result\n     * @throws UnknownElementException\n     *  a visitor implementation may optionally throw this exception\n     *\/\n    R visitUnknown(Element e, P p);\n}<\/code><\/pre>\n
\u5728ElementVisitor<\/code>\u4e2d\u5b9a\u4e49\u4e86\u591a\u79cdvisit<\/code>\u63a5\u53e3\uff0c\u6bcf\u4e2a\u63a5\u53e3\u5904\u7406\u4e00\u79cd\u5143\u7d20\u7c7b\u578b\uff0c\u90a3\u4e48\u8fd9\u5c31\u662f\u5178\u578b\u7684\u8bbf\u95ee\u8005\u6a21\u5f0f\u3002<\/p>\n
\u603b\u7ed3<\/h2>\n
    \n
  • \u4f18\u70b9<\/li>\n<\/ul>\n
    \uff081\uff09\u5404\u89d2\u8272\u804c\u8d23\u5206\u79bb\uff0c\u7b26\u5408\u5355\u4e00\u804c\u8d23\u539f\u5219
    \n\uff082\uff09\u5177\u6709\u4f18\u79c0\u7684\u6269\u5c55\u6027
    \n\uff083\uff09\u4f7f\u5f97\u6570\u636e\u7ed3\u6784\u548c\u4f5c\u7528\u4e8e\u7ed3\u6784\u4e0a\u7684\u64cd\u4f5c\u89e3\u8026\uff0c\u4f7f\u5f97\u64cd\u4f5c\u96c6\u5408\u53ef\u4ee5\u72ec\u7acb\u53d8\u5316
    \n\uff084\uff09\u7075\u6d3b\u6027<\/p>\n
      \n
    • \u7f3a\u70b9<\/li>\n<\/ul>\n
      \uff081\uff09\u5177\u4f53\u5143\u7d20\u5bf9\u8bbf\u95ee\u8005\u516c\u5e03\u7ec6\u8282\uff0c\u8fdd\u53cd\u4e86\u8fea\u7c73\u7279\u539f\u5219
      \n\uff082\uff09\u5177\u4f53\u5143\u7d20\u53d8\u66f4\u65f6\u5bfc\u81f4\u4fee\u6539\u6210\u672c\u5927
      \n\uff083\uff09\u8fdd\u53cd\u4e86\u4f9d\u8d56\u5012\u7f6e\u539f\u5219\uff0c\u4e3a\u4e86\u8fbe\u5230\u201c\u533a\u522b\u5bf9\u5f85\u201d\u800c\u4f9d\u8d56\u4e86\u5177\u4f53\u7c7b\uff0c\u6ca1\u6709\u4f9d\u8d56\u62bd\u8c61<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u8bbf\u95ee\u8005\u6a21\u5f0f\u662f\u4e00\u79cd\u884c\u4e3a\u578b\u6a21\u5f0f\uff0c\u5b83\u662f23\u79cd\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u6700\u590d\u6742\u7684\u4e00\u4e2a\uff0c\u867d\u7136\u4f7f\u7528\u9891\u7387\u4e0d\u9ad8\uff0c\u4f46\u662f\u5e76\u4e0d\u4ee3\u8868\u53ef\u4ee5\u5ffd\u7565\uff0c\u5728\u5408\u9002\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[303],"tags":[],"class_list":["post-1125","post","type-post","status-publish","format-standard","hentry","category-design-pattern"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1125"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1125\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}