编译以c++时，为什么会有这样的警告？在线等？谢谢。

bennyxu

[root@localhost 4]# g++ -o 4.2.1 4.2.1.cpp
In file included from /usr/lib/gcc/i386-redhat-linux/4.0.0/../../../../include/c++/4.0.0/backward/iostream.h:31,
                 from 4.2.1.cpp:1:
/usr/lib/gcc/i386-redhat-linux/4.0.0/../../../../include/c++/4.0.0/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated.

kakuyou

#include <iostream>

not

#include <iostream.h>

就是说包含时不带.h

旧的定义都是.h，后来全去掉了。

dongni386

如果你是用VC的话, 还是忍受一下不标准的吧