可以答疑吗？ 第一个专题 1291 HDUClosing Ceremony of Sunny Cup可以给个思路吗？想不出好的方法

用MFC开发的还是纯API？

The article is good. But it lacks of some in-depth discussions, such as how buffered/unbuffered stream constructed/used/typical usage, what's the relationship/ownership between stream and streambuf,..., etc.

Futher, I doubt that:
ostrstream myString;
mystring << "this is a test" << ends;
sp = myString.str(); // Get a pointer to the string

The ends "manipulator" adds the necessary terminating null character to the string.

Is above conclusion is correct? and why??

我想下在设计模式的书和代码，现在怎么下载不了了？