添加 Predicates 工具类。

src/main/java/xyz/zhouxy/plusone/commons/function/Predicates.java

@@ -0,0 +1,10 @@
+package xyz.zhouxy.plusone.commons.function;
+
+import java.util.function.Predicate;
+
+public class Predicates<T> {
+
+    public final Predicate<T> of(Predicate<? super T> predicate) {
+        return predicate::test;
+    }
+}