chenyy309
chenyy309
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操作符函数出问题a，救急 class Book{ public: long NO; string name,auther; int num,all_num; Book& operator =( Book &); }; Book& Book::operator =(Book & book) { all_num = book.all_num; num = book.num; NO = book.NO; name = book.name; auther = book.auther; return *this; } 为什么name = book.name 会引发中断
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