吃饭

avl/avl.go

@@ -117,6 +117,12 @@ func (tree *Tree) Remove(key interface{}) (interface{}, bool) {
 	return nil, false
 }
 
+func (tree *Tree) Clear() {
+	tree.size = 0
+	tree.root = nil
+	tree.iter = NewIteratorWithCap(nil, 16)
+}
+
 // Values 返回先序遍历的值
 func (tree *Tree) Values() []interface{} {
 	mszie := 0