1-12-7 异常正常析构的证明

#include <iostream>
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#include <exception>

using namespace std;
class MyException : public logic_error
{
public:
    MyException(const char *s) : logic_error(s) {}
    ~MyException() { cout << "the Exception has been destructed." << endl; }
};
class test
{
public:
    void throwException() { throw MyException("hello, this is MyException."); }
};

int main(int argc, char const *argv[])
{
    try
    {
        test t;
        t.throwException();
    }
    catch (const std::exception &e)
    {
        std::cerr << e.what() << '\n';
    }

    return 0;
}