api文档方法参数

in型参数，带信息进去用；

out型参数，方法执行结束，带着信息出来

如：

CreateProcessW(

    _In_opt_ LPCWSTR lpApplicationName,

    _Inout_opt_ LPWSTR lpCommandLine,

    _In_opt_ LPSECURITY_ATTRIBUTES lpProcessAttributes,

    _In_opt_ LPSECURITY_ATTRIBUTES lpThreadAttributes,

    _In_ BOOL bInheritHandles,

    _In_ DWORD dwCreationFlags,

    _In_opt_ LPVOID lpEnvironment,

    _In_opt_ LPCWSTR lpCurrentDirectory,

    _In_ LPSTARTUPINFOW lpStartupInfo,

    _Out_ LPPROCESS_INFORMATION lpProcessInformation

    );