C++快速入门 第三十七讲：高级强制类型转换

实例1：静态强制转换

1 #include <iostream> 2 #include <string> 3 4 using namespace std; 5 class Cpany 6 ; 15 Cpany::Cpany(string theName,string product) 16 20 void Cpany::printInfo() 21 24 25 class TechCpany:public Cpany 26 ; 31 TechCpany::TechCpany(string theName,string product):Cpany(theName,product) 32 34 void TechCpany::printInfo() 35 38 39 int main() 40

实例2：动态强制转换

1 #include <iostream> 2 #include <string> 3 4 using namespace std; 5 class Cpany 6 ; 15 Cpany::Cpany(string theName,string product) 16 20 void Cpany::printInfo() 21 24 25 class TechCpany:public Cpany 26 ; 31 TechCpany::TechCpany(string theName,string product):Cpany(theName,product) 32 34 void TechCpany::printInfo() 35 38 39 int main() 40 49 else 50 53 delete cpany;//释放内存(此处cpany与techCpany两个指针都指向TechCpany定义的对象) 54 //所以释放内存只需要释放一次即可 55 cpany = NULL; 56 techCpany = NULL; 57 58 return 0; 59 }

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