最近，我尝试使用Visual Studio中内置的dll。 经过艰苦的尝试，我成功地编译了它，并得到了一些dll和一些头文件。 但是，当我尝试在Qt Creator中使用该dll时，它总是告诉我“对'_imp___的未定义引用”
我必须怀疑我的dll是否正确编译。因此，我使用DLL Export Viewer来检查我的dll。
我的dll功能：
bool __cdecl MsgPack::registerPacker(int,signed char,class QByteArray (__cdecl*)(class QVariant const & __ptr64)) 0x0000000180001280 0x00001280 50 (0x32) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
bool __cdecl MsgPack::registerType(enum QMetaType::Type,unsigned char) 0x0000000180001290 0x00001290 51 (0x33) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
bool __cdecl MsgPack::registerUnpacker(signed char,class QVariant (__cdecl*)(class QByteArray const & __ptr64)) 0x00000001800012a0 0x000012a0 52 (0x34) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
class MsgPackStream & __ptr64 __cdecl operator<<(class MsgPackStream & __ptr64,class QDate const & __ptr64) 0x00000001800078b0 0x000078b0 27 (0x1b) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
class MsgPackStream & __ptr64 __cdecl operator<<(class MsgPackStream & __ptr64,class QDateTime const & __ptr64) 0x00000001800079d0 0x000079d0 28 (0x1c) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
class MsgPackStream & __ptr64 __cdecl operator<<(class MsgPackStream & __ptr64,class QPoint const & __ptr64) 0x0000000180008150 0x00008150 29 (0x1d) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
class MsgPackStream & __ptr64 __cdecl operator<<(class MsgPackStream & __ptr64,class QRect const & __ptr64) 0x0000000180008260 0x00008260 30 (0x1e) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
class MsgPackStream & __ptr64 __cdecl operator<<(class MsgPackStream & __ptr64,class QSize const & __ptr64) 0x00000001800083d0 0x000083d0 31 (0x1f) qmsgpack.dll C:\Users\Ivy\Desktop\Qt Project\Test\Test\qmsgpack.dll Exported Function
但是，由qt创建的dll（lib）可以很好地链接，看起来像这样
_ZN8Untitled4FOOkEv 0x6a9413d0 0x000013d0 1 (0x1) untitled.dll C:\Users\Ivy\Desktop\Qt Project\build-untitled-Desktop_Qt_5_12_3_MinGW_64_bit-Release\release\untitled.dll Exported Function
_ZN8UntitledC1Ev 0x6a9413c0 0x000013c0 2 (0x2) untitled.dll C:\Users\Ivy\Desktop\Qt Project\build-untitled-Desktop_Qt_5_12_3_MinGW_64_bit-Release\release\untitled.dll Exported Function
_ZN8UntitledC2Ev 0x6a9413c0 0x000013c0 3 (0x3) untitled.dll C:\Users\Ivy\Desktop\Qt Project\build-untitled-Desktop_Qt_5_12_3_MinGW_64_bit-Release\release\untitled.dll Exported Function
也难怪当我尝试链接到普通dll时，它无法链接。
我检查了系统中的其他dll，但它们的函数名都没有以一些奇怪的下划线混合词开头。
有人可以解释吗？