C++(自带异常，自定义异常类继承系统的异常示例)

C++(自带异常，自定义异常类继承系统的异常示例)

#include <stdexcept>
using namespace std;

class MyOutOfRangException :public exception
{
public:
	MyOutOfRangException(string errorInfo) {
		this->m_ErrorInfo = errorInfo;
	}
	virtual char const* what() const
	{
		//string转char *
		return this->m_ErrorInfo.c_str();
	}
	virtual ~MyOutOfRangException() {

	}
	string m_ErrorInfo;
};
class Person
{
public:
	Person(string name, int age) {
		this->m_Name = name;
		if (age < 0 || age>200)
		{
			//throw MyOutOfRangException(string("我自的异常类"));
			throw MyOutOfRangException("我自的异常类");

		}
	}
	string m_Name;
	int m_Age;
};
void test01()
{
	Person p2("小王", 3000);
}
int main()
{
	try
	{
		test01();
	}
	catch (MyOutOfRangException& e)
	{
	cout << e.what() << endl;
	}
	return 0;
}