1. Define a class, DATE, including year, month and day and satisfy the demands as below: 1.1 Search keywords tm in the MSDN or internet to know how to get current date, and see also example on page 382 in the book or 405 in the E-book. 1.2 Define a derived class of DATE, BIRTHDAY, to save someone s birthday. The programmer calls the member function AGE to get someone s age. 1.3 So we can use like as follows in main: void main() { BIRTHDAY Zhang(1988, 4, 15) cout << Zhang.AGE() << endl // Now Zhang s age is 28 } 2. Define multiple classes(at least two classes) to pass data among them. For example：you may define a class, such as InputData，to enter some data. And define a class ,such as OutputData，to print some data. Note: 2.1 Define any member data and member functions according to your program 2.2 DON T define global variable or object. 2.3 Further reflection: How can we deal with

ep4-1120141884-刘晶晶\ep4-2思考题.txt
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