9.2 Time Class Case Study Preprocessor wrapper(预处理器封套) 成员函数定义的两种方法 How to use class o The size of class 序解读( Textbook P370F91) 0 2018, SEU. All rights reserved. 5© 2009, SEU. All rights reserved. © 2018, SEU. All rights reserved. 5 9.2 Time Class Case Study Preprocessor wrapper（预处理器封套） 成员函数定义的两种方法 How to use class The size of class