#include <iostream>
#include <string>
using std::cin, std::cout, std::string;

void C()
{
    cout << "start C\n";
    throw -1;
    cout << "End C\n";
}
void B()
{
    cout << "start B\n";
    C();
    cout << "End B\n";
}

void A()
{
    cout << "start A\n";
    B();
    cout << "End A\n";
}

int main()
{
    try
    {
        A();
    }
    catch (int)
    {
        cout << "main 处理了 int\n";
    }
}