说明:在头文件中设置共有成员和私有成员,获取图像信息,并在main函数中实现(The common and private members are set in the header file, and the image information is obtained and implemented in the main function) <四羊snail
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说明:录入图书信息并获取图书名称、价格、销量等信息,实现信息数据化处理(Input books information and obtain books name, price, sales volume and other information, realize the data processing of information) <四羊snail
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说明:用静态成员函数实现统计并输出学生的人数和总成绩(Using static member function to achieve statistics and output the number of students and the total score) <四羊snail
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