Excption

key:
fillStackTrace()：将调用的栈信息存储下来
demangle()：将函数名转换

#include"Exception.h"
#include <stdio.h>
class Bar
{
 public:
  void test()
  {
    throw tinymuduo::Exception("oops");
  }
};
void foo()
{
  Bar b;
  b.test();
}
int main()
{
  try
  {
    foo();
  }
  catch (const tinymuduo::Exception& ex)
  {
    printf("reason: %s\n", ex.what());
      //错误信息
    printf("stack trace: %s\n", ex.stackTrace());
      //堆栈调用情况
  }
}