摘要：
今天在看c++primer的时候,读到其中这样一段话:When we use anistreamas a condition, the effect is to test the state of the stream. If the stream is validthat is, if it is still possible to read another input then the test succeeds. Anistreambecomes invalid when we hitend-of-fileor encounter an invalid input, such as re 阅读全文
posted @ 2011-06-09 10:19 tianya10319 阅读(2171) 评论(0) 推荐(1) 编辑