bitshelf
diff --git a/‎大話/cpp/builder/.sconsign.dblite‎
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diff --git a/‎大話/cpp/builder/SConsTest‎
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diff --git a/‎大話/note/code/simpleFactory‎
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diff --git a/‎大話/note/code/simpleFactory.cpp‎
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diff --git a/‎大話/note/code/simpleFactory_strategy_combine‎
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diff --git a/‎大話/note/code/simpleFactory_strategy_combine.cpp‎
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diff --git a/‎大話/note/code/strategy‎
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diff --git a/‎大話/note/code/strategy.cpp‎
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@@ -0,0 +1,67 @@
+#include <iostream>
+using namespace std;
+
+//基類
+class COperation {
+public:
+    int m_nFirst;
+    int m_nSecond;
+    virtual double GetResult() {
+        double dResult = 0;
+        return dResult;
+    }
+};
+
+//加法
+class AddOperation : public COperation {
+public:
+    virtual double GetResult() {
+        return m_nFirst + m_nSecond;
+    }
+};
+
+//減法
+class SubOperation : public COperation {
+public:
+    virtual double GetResult() {
+        return m_nFirst - m_nSecond;
+    }
+};
+
+//工廠類
+class CCalculatorFactory {
+public:
+    static COperation* Create(char cOperator);
+};
+
+COperation* CCalculatorFactory::Create(char cOperator) {
+    COperation* oper;
+
+    //在 C#中可以用反射來取消判斷時用的 switch,在 C++中用什麼呢?RTTI??
+    switch (cOperator) {
+    case '+':
+        oper = new AddOperation();
+        break;
+
+    case '-':
+        oper = new SubOperation();
+        break;
+
+    default:
+        oper = new AddOperation();
+        break;
+    }
+
+    return oper;
+}
+
+//用戶端
+int main() {
+    int a, b;
+    cin >> a >> b;
+    COperation* op = CCalculatorFactory::Create('-');
+    op->m_nFirst = a;
+    op->m_nSecond = b;
+    cout << op->GetResult() << endl;
+    return 0;
+}
@@ -0,0 +1,56 @@
+#include <iostream>
+using namespace std;
+
+//策略基類
+class COperation {
+public:
+    int m_nFirst;
+    int m_nSecond;
+    virtual double GetResult() {
+        double dResult = 0;
+        return dResult;
+    }
+};
+
+//策略具體類—加法類
+class AddOperation : public COperation {
+public:
+    AddOperation(int a, int b) {
+        m_nFirst = a;
+        m_nSecond = b;
+    }
+
+    AddOperation() {
+    }
+
+    virtual double GetResult() {
+        return m_nFirst + m_nSecond;
+    }
+};
+
+class Context {
+private:
+    COperation* op;
+public:
+    Context(char cType) {
+        switch (cType) {
+        case '+':
+            op = new AddOperation(3, 8);
+            break;
+
+        default:
+            op = new AddOperation();
+            break;
+        }
+    }
+    double GetResult() {
+        return op->GetResult();
+    }
+};
+
+//用戶端
+int main() {
+    Context* test = new Context('+');
+    cout << test->GetResult() << endl;
+    return 0;
+}
@@ -0,0 +1,60 @@
+#include <iostream>
+using namespace std;
+
+//策略基類
+class COperation {
+public:
+    int m_nFirst;
+    int m_nSecond;
+    virtual double GetResult() {
+        double dResult = 0;
+        return dResult;
+    }
+};
+
+//策略具體類—加法類
+class AddOperation : public COperation {
+public:
+    AddOperation(int a, int b) {
+        m_nFirst = a;
+        m_nSecond = b;
+    }
+    virtual double GetResult() {
+        return m_nFirst + m_nSecond;
+    }
+};
+
+class Context {
+private:
+    COperation* op;
+public:
+    Context(COperation* temp) {
+        op = temp;
+    }
+    double GetResult() {
+        return op->GetResult();
+    }
+};
+
+//用戶端
+int main() {
+    int a, b;
+    char c;
+    cin >> a >> b;
+    cout << "請輸入運算子:"
+         ;
+    cin >> c;
+
+    switch (c) {
+    case  '+':
+        {
+            Context *context = new Context(new AddOperation(a, b));
+            cout << context->GetResult() << endl;
+        }
+        break;
+    default:
+        break;
+    }
+
+    return 0;
+}