70. 系统标准异常

• 系统标准异常

• 引入头文件 #include
• 抛出越界异常 throw out_of_range(“…”)
• 获取错误信息 catch( exception & e ) e.what();

#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
#include <stdexcept> //  std 标准  except 异常


class Person
{
public:
	Person(int age)
	{
		if (age < 0 || age > 150)
		{
			throw out_of_range("年龄必须在 0 ~ 150之间");
			//throw length_error("年龄必须在 0 ~ 150之间");
		}
		else
		{
			this->m_Age = age;
		}
	}

	int m_Age;
};

void test01()
{
	try
	{
		Person p(151);
	}
	//catch ( out_of_range &e)
	catch ( exception &e)
	{
		cout << e.what() << endl;
	}

}

int main(){
	test01();


	system("pause");
	return EXIT_SUCCESS;
}