打开vc设置中release下的调试信息生成选项

In
your VC++ project, go to Project | Settings. Make sure the Release configuration is selected in theSettings For combobox on the left. Go to the C/C++ tab,
select the General category, and selectProgram Database in the Debug Info combobox. This tells the compiler to generate debug information

Go to the Link tab and check Generate debug info. This tells the linker to collate debug information into .pdb files. The linker also puts the name of the .pdb file in the executable,
so the debugger can find it.

On the same Link tab, enter /OPT:REF at the end of the Project Options list. This tells the linker to eliminate functions and/or
data that are never referenced. This is the usually the default for release builds, but it gets turned off when you tell the linker to generate debug information. Failing to specify/OPT:REF will cause your executables and DLLs
to get 10-20% larger