error LNK2001: unresolved external symbol，求大神指教

[hjq188]

编写了个MFC的画图程序，好容易十几个错误解决了，连接的时候出error LNK2001: unresolved external symbol，求哪位大神给看看。
错误信息如下：
DrawView.obj : error LNK2001: unresolved external symbol "protected: void __thiscall CDrawView::OnFill(void)" (?OnFill@CDrawView@@IAEXXZ)
DrawView.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall CDrawView::OnEndPrinting(class CDC *,struct CPrintInfo *)" (?OnEndPrinting@CDrawView@@MAEXPAVCDC@@PAUCPrintInfo@@@Z)
DrawView.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall CDrawView::OnBeginPrinting(class CDC *,struct CPrintInfo *)" (?OnBeginPrinting@CDrawView@@MAEXPAVCDC@@PAUCPrintInfo@@@Z)
DrawView.obj : error LNK2001: unresolved external symbol "protected: virtual int __thiscall CDrawView::OnPreparePrinting(struct CPrintInfo *)" (?OnPreparePrinting@CDrawView@@MAEHPAUCPrintInfo@@@Z)
DrawView.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall CDrawView::OnDraw(class CDC *)" (?OnDraw@CDrawView@@UAEXPAVCDC@@@Z)
DrawView.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall CDrawView::PreCreateWindow(struct tagCREATESTRUCTA &)" (?PreCreateWindow@CDrawView@@UAEHAAUtagCREATESTRUCTA@@@Z)
DrawView.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall CDrawView::Dump(class CDumpContext &)const " (?Dump@CDrawView@@UBEXAAVCDumpContext@@@Z)
DrawView.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall CDrawView::AssertValid(void)const " (?AssertValid@CDrawView@@UBEXXZ)
DrawView.obj : error LNK2001: unresolved external symbol "public: virtual __thiscall CDrawView::~CDrawView(void)" (??1CDrawView@@UAE@XZ)

[threenewbee]

头文件是不是没有包含进来。

[threenewbee]

你应该用AppWizard新建一个程序，并且不断添加代码的时候不断编译。而不是一股脑写好了才发现几十个错误。

[rxguoblp]

是不是：项目->属性->链接器->输入->附加依赖项 中缺少.lib文件

[shen_wei]

添加必要的动态库文件。。

[oyljerry]

对应的cpp文件包含进工程