关于 unresolved external symbol public: __thiscall CLine:

是一个初学者,按教程做操练,编译时报以下错误:
inking...
Line.obj:errorLNK2001:unresolvedexternalsymbolpublic:__thiscallCLine::CLine(void)(??0CLine@@QAE@XZ)
Debug/Day10.exe:fatalerrorLNK1120:1unresolvedexternals
Errorexecutinglink.exe.
Day10.exe-2error(s),0warning(s)
这是什么意思啊?希望高手点拨。
代码附在附件中。

(I am a beginner, follow the tutorial and get the following error when compiling:
inking...
Line.obj:errorLNK2001:unresolvedexternalsymbolpublic:__thiscallCLine::CLine(void)(??0CLine@@QAE@XZ)
Debug/Day10.exe:fatalerrorLNK1120:1unresolvedexternals
Errorexecutinglink.exe.
Day10.exe-2error(s),0warning(s)
What does this mean? I hope the experts will help.
The code is attached in the attachment.)

[下载]16491157705.rar

2022-9-22 16:49 上传

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