Question

C++里cin.get(a,n)和cin.getline(a,n)有什么区别

是.get不读换行符.getline读换行符么，最好给个简单的例子吧
还有就是cin.get(a,n).get()效果相当于cin.getline(a,n)是么？

Answer 1

The failbit flag is set if the function extracts no characters, or if the delimiting character is not found once (n-1)characters have already been written to s.
如果读取了n-1个字符以后没遇见结束符，就设置了failbit flag 这个flag一这只，你这个cin就算废了，不能用了，所以你后面的读取全是空的。