diff --git a/api/api.go b/api/api.go
index 4ef5834..8da93b4 100644
--- a/api/api.go
+++ b/api/api.go
@@ -12,7 +12,7 @@ type Map[K constraints.Ordered, V any] interface {
 	// 设置
 	Set(k K, v V)
 	// 设置值
-	SetWithPrev(k K, v V) (prev V, replaced bool)
+	Swap(k K, v V) (prev V, replaced bool)
 	// int
 	Len() int
 	// 遍历
@@ -32,7 +32,7 @@ type Set[K constraints.Ordered] interface {
 
 type Trie[V any] interface {
 	Get(k string) (v V)
-	SetWithPrev(k string, v V) (prev V, replaced bool)
+	Swap(k string, v V) (prev V, replaced bool)
 	HasPrefix(k string) bool
 	TryGet(k string) (v V, found bool)
 	Delete(k string)
diff --git a/avltree/avltree.go b/avltree/avltree.go
index 55c3a2c..ae2f472 100644
--- a/avltree/avltree.go
+++ b/avltree/avltree.go
@@ -245,11 +245,11 @@ func (a *AvlTree[K, V]) TryGet(k K) (v V, ok bool) {
 }
 
 func (a *AvlTree[K, V]) Set(k K, v V) {
-	_, _ = a.SetWithPrev(k, v)
+	_, _ = a.Swap(k, v)
 }
 
 // 设置接口, 如果有值, 把prev值带返回, 并且被替换, 没有就新加
-func (a *AvlTree[K, V]) SetWithPrev(k K, v V) (prev V, replaced bool) {
+func (a *AvlTree[K, V]) Swap(k K, v V) (prev V, replaced bool) {
 	link := &a.root.node
 	var parent *node[K, V]
 	node := &node[K, V]{pair: pair[K, V]{key: k, val: v}}
diff --git a/avltree/avltree_test.go b/avltree/avltree_test.go
index 7b42e54..1ca78bb 100644
--- a/avltree/avltree_test.go
+++ b/avltree/avltree_test.go
@@ -12,7 +12,7 @@ func Test_SetAndGet(t *testing.T) {
 	b := New[int, int]()
 	max := 1000
 	for i := 0; i < max; i++ {
-		b.SetWithPrev(i, i)
+		b.Swap(i, i)
 	}
 
 	for i := 0; i < max; i++ {
@@ -31,7 +31,7 @@ func Test_SetAndGet2(t *testing.T) {
 	b := New[int, int]()
 	max := 1000
 	for i := max; i >= 0; i-- {
-		b.SetWithPrev(i, i)
+		b.Swap(i, i)
 	}
 
 	for i := max; i >= 0; i-- {
diff --git a/btree/btree.go b/btree/btree.go
index 49376a5..f55dbb5 100644
--- a/btree/btree.go
+++ b/btree/btree.go
@@ -61,7 +61,7 @@ func (b *Btree[K, V]) Len() int {
 // 设置接口, 如果有这个值, 有值就替换, 没有就新加
 func (b *Btree[K, V]) Set(k K, v V) {
 
-	_, _ = b.SetWithPrev(k, v)
+	_, _ = b.Swap(k, v)
 }
 
 // 新建一个节点
@@ -155,7 +155,7 @@ func (b *Btree[K, V]) nodeSet(n *node[K, V], item pair[K, V]) (prev V, replaced
 }
 
 // 设置接口, 如果有值, 把prev值带返回, 并且被替换, 没有就新加
-func (b *Btree[K, V]) SetWithPrev(k K, v V) (prev V, replaced bool) {
+func (b *Btree[K, V]) Swap(k K, v V) (prev V, replaced bool) {
 	item := pair[K, V]{key: k, val: v}
 	// 如果是每一个节点, 直接加入到root节点
 	if b.root == nil {
@@ -184,8 +184,8 @@ func (b *Btree[K, V]) SetWithPrev(k K, v V) (prev V, replaced bool) {
 			b.root.items.Push(median)
 		}
 
-		// 再调用下SetWithPrev, 结点分裂好了, 就有空间放数据
-		return b.SetWithPrev(item.key, item.val)
+		// 再调用下Swap, 结点分裂好了, 就有空间放数据
+		return b.Swap(item.key, item.val)
 	}
 
 	if replaced {
diff --git a/btree/btree_test.go b/btree/btree_test.go
index 402da0b..28a1bac 100644
--- a/btree/btree_test.go
+++ b/btree/btree_test.go
@@ -79,7 +79,7 @@ func Test_Btree_SetAndGet_Replace(t *testing.T) {
 	}
 
 	for i := 0; i < max; i++ {
-		prev, replace := b.SetWithPrev(i, i+1)
+		prev, replace := b.Swap(i, i+1)
 		if !replace {
 			t.Errorf("Expected true, got false for key %d", i)
 		}
diff --git a/cmap/cmap_stdmap.go b/cmap/cmap_stdmap.go
index b044832..145adea 100644
--- a/cmap/cmap_stdmap.go
+++ b/cmap/cmap_stdmap.go
@@ -37,7 +37,7 @@ func (s *stdmap[K, V]) Set(key K, value V) {
 }
 
 // 设置值
-func (s *stdmap[K, V]) SetWithPrev(key K, value V) (prev V, replaced bool) {
+func (s *stdmap[K, V]) Swap(key K, value V) (prev V, replaced bool) {
 	prev, replaced = s.m[key]
 	s.m[key] = value
 	return
diff --git a/radix/radix.go b/radix/radix.go
index 19212d0..dc18d0b 100644
--- a/radix/radix.go
+++ b/radix/radix.go
@@ -67,7 +67,7 @@ func (r *Radix[V]) newEdge(label rune, p pair[V], prefix string) edge[V] {
 }
 
 // 设置
-func (r *Radix[V]) SetWithPrev(k string, v V) (prev V, replaced bool) {
+func (r *Radix[V]) Swap(k string, v V) (prev V, replaced bool) {
 
 	var parent *node[V]
 	var found bool
diff --git a/rbtree/rbtree.go b/rbtree/rbtree.go
index 130d5f5..a630811 100644
--- a/rbtree/rbtree.go
+++ b/rbtree/rbtree.go
@@ -217,11 +217,11 @@ func (r *RBTree[K, V]) Last() (v V, ok bool) {
 }
 
 func (r *RBTree[K, V]) Set(k K, v V) {
-	_, _ = r.SetWithPrev(k, v)
+	_, _ = r.Swap(k, v)
 }
 
 // 设置
-func (r *RBTree[K, V]) SetWithPrev(k K, v V) (prev V, replaced bool) {
+func (r *RBTree[K, V]) Swap(k K, v V) (prev V, replaced bool) {
 	link := &r.root.node
 	var parent *node[K, V]
 
diff --git a/rbtree/rbtree_test.go b/rbtree/rbtree_test.go
index 8aeab06..3a648d5 100644
--- a/rbtree/rbtree_test.go
+++ b/rbtree/rbtree_test.go
@@ -12,7 +12,7 @@ func Test_SetAndGet(t *testing.T) {
 	b := New[int, int]()
 	max := 1000
 	for i := 0; i < max; i++ {
-		b.SetWithPrev(i, i)
+		b.Swap(i, i)
 	}
 
 	for i := 0; i < max; i++ {
@@ -31,7 +31,7 @@ func Test_SetAndGet2(t *testing.T) {
 	b := New[int, int]()
 	max := 1000
 	for i := max; i >= 0; i-- {
-		b.SetWithPrev(i, i)
+		b.Swap(i, i)
 	}
 
 	for i := max; i >= 0; i-- {
diff --git a/rhashmap/rhashmap.go b/rhashmap/rhashmap.go
index 23bc0f2..8542d52 100644
--- a/rhashmap/rhashmap.go
+++ b/rhashmap/rhashmap.go
@@ -375,11 +375,11 @@ func (h *HashMap[K, V]) Range(pr func(key K, val V) bool) {
 }
 
 func (h *HashMap[K, V]) Set(k K, v V) {
-	h.SetWithPrev(k, v)
+	h.Swap(k, v)
 }
 
 // 设置
-func (h *HashMap[K, V]) SetWithPrev(k K, v V) (prev V, replaced bool) {
+func (h *HashMap[K, V]) Swap(k K, v V) (prev V, replaced bool) {
 	h.lazyinit()
 	if h.isRehashing() {
 		h.rehash(1)
diff --git a/skiplist/skiplist.go b/skiplist/skiplist.go
index db9c415..0f5f7f0 100644
--- a/skiplist/skiplist.go
+++ b/skiplist/skiplist.go
@@ -186,7 +186,7 @@ func (s *SkipList[K, T]) InsertOrUpdate(score K, elem T, cb InsertOrUpdateCb[T])
 	s.InsertInner(score, elem, s.rand())
 }
 
-func (s *SkipList[K, T]) SetWithPrev(score K, elem T) (prev T, replaced bool) {
+func (s *SkipList[K, T]) Swap(score K, elem T) (prev T, replaced bool) {
 
 	return s.InsertInner(score, elem, s.rand())
 }
diff --git a/trie/trie_map.go b/trie/trie_map.go
index 4597a3e..3e936ba 100644
--- a/trie/trie_map.go
+++ b/trie/trie_map.go
@@ -24,10 +24,10 @@ func New[V any]() *Trie[V] {
 }
 
 func (t *Trie[V]) Set(k string, v V) {
-	_, _ = t.SetWithPrev(k, v)
+	_, _ = t.Swap(k, v)
 }
 
-func (t *Trie[V]) SetWithPrev(k string, v V) (prev V, replaced bool) {
+func (t *Trie[V]) Swap(k string, v V) (prev V, replaced bool) {
 	n := t
 	for _, r := range k {
 		c := n.children[r]