200 coding examples for using VC++

				#include
				//基类First
				class First {
				    int val1;
				public:
				    SetVal1(int v) {
				        val1=v;
				    }
				    void show_First(void) {
				        cout				    }
				};
				//派生类Second
				class Second:private First {   //默认为private模式
				    int val2;
				public:
				    void SetVal2(int v1,int v2) {
				        SetVal1(v1);     //可见，合法
				        val2=v2;
				    }
				    void show_Second(void) {
				    // cout				        show_First();
				        cout				    }
				};
				main() {
				    Second s1;
				    //s1.SetVal1(1);    //不可见，非法
				    s1.SetVal2(2,3);    //合法
				    //s1.show_First();  //不可见，非法
				    s1.show_Second();
				}