Use the predict type parameter to define a method for filtering books
2022-02-02 15:02:50 【CSDN Q & A】
Complete a method of screening books , contain title（ title ）、price（ pricing ）、author（ author ）、publisher（ Press. ）, This method can return qualified books according to the given conditions . For example, the pricing range , Whether the title contains a keyword, etc . Required conditions lambda The expression gives .
Use predicate Type parameters to define methods .
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