下面这两个错误是怎么回事?
error C2512: 'CMailBox' : no appropriate default constructor available
error C2661: 'CMailBox::CMailBox' : no overloaded function takes 3 parameters
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下面这两个错误是怎么回事?
下面这两个错误是怎么回事? error C2512: 'CMailBox' : no appropriate default constructor available error C2661: 'CMailBox::CMailBox' : no overloaded function takes 3 parameters