关于_MSC_VER的说明

Internal version numbering[edit]

The predefined macro _MSC_VER indicates the major and minor version numbers of the Visual C++ compiler. The macro's value is an integer literal in which the last two digits indicate the minor version number and the preceding digits indicate the major version number.
From Visual Studio 2017, _MSC_VER is incremented monotonically at every Visual C++ toolset update. Thus, for example, the version of MSVC++ 14.1 that ships with Visual Studio 2017 version 15.3.0 sets _MSC_VER to 1911. Microsoft recommends using the >= operator to test the value of _MSC_VER.
Here are values of _MSC_VER for various versions of the Visual C++ compiler:

MSC    1.0   _MSC_VER == 100

MSC    2.0   _MSC_VER == 200

MSC    3.0   _MSC_VER == 300

MSC    4.0   _MSC_VER == 400

MSC    5.0   _MSC_VER == 500

MSC    6.0   _MSC_VER == 600

MSC    7.0   _MSC_VER == 700

MSVC++ 1.0   _MSC_VER == 800

MSVC++ 2.0   _MSC_VER == 900

MSVC++ 4.0   _MSC_VER == 1000 (Developer Studio 4.0)

MSVC++ 4.2   _MSC_VER == 1020 (Developer Studio 4.2)

MSVC++ 5.0   _MSC_VER == 1100 (Visual Studio 97 version 5.0)

MSVC++ 6.0   _MSC_VER == 1200 (Visual Studio 6.0 version 6.0)

MSVC++ 7.0   _MSC_VER == 1300 (Visual Studio .NET 2002 version 7.0)

MSVC++ 7.1   _MSC_VER == 1310 (Visual Studio .NET 2003 version 7.1)

MSVC++ 8.0   _MSC_VER == 1400 (Visual Studio 2005 version 8.0)

MSVC++ 9.0   _MSC_VER == 1500 (Visual Studio 2008 version 9.0)

MSVC++ 10.0  _MSC_VER == 1600 (Visual Studio 2010 version 10.0)

MSVC++ 11.0  _MSC_VER == 1700 (Visual Studio 2012 version 11.0)

MSVC++ 12.0  _MSC_VER == 1800 (Visual Studio 2013 version 12.0)

MSVC++ 14.0  _MSC_VER == 1900 (Visual Studio 2015 version 14.0)

MSVC++ 14.1  _MSC_VER == 1910 (Visual Studio 2017 version 15.0)

MSVC++ 14.11 _MSC_VER == 1911 (Visual Studio 2017 version 15.3)

MSVC++ 14.12 _MSC_VER == 1912 (Visual Studio 2017 version 15.5

MSVC++ 14.13 _MSC_VER == 1913 (Visual Studio 2017 version 15.6)

MSVC++ 14.14 _MSC_VER == 1914 (Visual Studio 2017 version 15.7)