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Three books known data

Time:09-16

The title author sales unit price quantity
Object-oriented programming zhang SAN 23.5 15
24 14 c + + program design, dick, and harry
Java programming fifty and 24
21.5Write programs, define the class Book, output the data of these books, books and calculate the total sales amount and total sales amount (with static data members), thank you all for the great god
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