update dir

sizeof/moreinhe.cpp

@@ -0,0 +1,43 @@
+/**
+ * @file moreinhe.cpp
+ * @brief 普通多继承与虚函数多继承
+ * @author 光城
+ * @version v1
+ * @date 2019-07-21
+ */
+
+#include<iostream>
+
+using namespace std;
+
+class A
+{
+    public:
+        char a;
+        int b;
+};
+
+class B
+{
+    public:
+        short a;
+        long b;
+};
+
+/**
+ * @brief 8+16+8=32
+ */
+class C:A,B
+{
+    char c;
+};
+
+
+int main()
+{
+    cout<<sizeof(A)<<endl; // 8
+    cout<<sizeof(B)<<endl; // 16
+    cout<<sizeof(C)<<endl; // 32
+
+    return 0;
+}