/java/Lambda表达式/BinaryOperator接口/java/Lambda表达式/Printer.java/java/Lambda表达式/Supplier接口/java/Lambda表达式/Consumer接口/java/Lambda表达式/ConsolePrinter.java/java/Lambda表达式/Predicate接口/java/Lambda表达式/Function接口/java/Lambda表达式/Main.java/java/Lambda表达式/UnaryOperator接口