用DEV-C++,code::blocks时编译是总是有警告

32:2 C:\Dev-Cpp\include\c++.4.2\backward\backward_warning.h #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. V-C++，32:2 C:\Dev-Cpp\include\c++.4.2\backward\back