diff --git a/README.md b/README.md
index 3bfec2b..5f61810 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,26 @@ func main() {
 ```
 
 ## API Documentation
+
+### Algorithm package implements some basic algorithm. eg. sort, search.
+
+```go
+import "github.com/duke-git/lancet/algorithm"
+```
+#### Function list:
+- [BubbleSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BubbleSort)
+- [CountSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#CountSort)
+- [InsertionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#InsertionSort)
+- [MergeSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#MergeSort)
+- [QuickSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#QuickSort)
+- [SelectionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#SelectionSort)
+- [ShellSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#ShellSort)
+- [BinarySearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BinarySearch)
+- [BinaryIterativeSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#BinaryIterativeSearch)
+- [LinearSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LinearSearch)
+- [LRUCache](https://github.com/duke-git/lancet/blob/main/docs/algorithm.md#LRUCache)
+
+
 ### Convertor package contains some functions for data convertion.
 
 ```go
diff --git a/README_zh-CN.md b/README_zh-CN.md
index 8845e53..341f4da 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -62,6 +62,25 @@ func main() {
 ```
 
 ## API文档
+
+### algorithm算法包实现一些基本算法。eg. sort, search.
+
+```go
+import "github.com/duke-git/lancet/algorithm"
+```
+#### Function list:
+- [BubbleSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BubbleSort)
+- [CountSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#CountSort)
+- [InsertionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#InsertionSort)
+- [MergeSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#MergeSort)
+- [QuickSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#QuickSort)
+- [SelectionSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#SelectionSort)
+- [ShellSort](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#ShellSort)
+- [BinarySearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BinarySearch)
+- [BinaryIterativeSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#BinaryIterativeSearch)
+- [LinearSearch](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LinearSearch)
+- [LRUCache](https://github.com/duke-git/lancet/blob/main/docs/algorithm_zh-CN.md#LRUCache)
+
 ### convertor转换器包支持一些常见的数据类型转换。
 
 ```go
diff --git a/algorithm/sorter_test.go b/algorithm/sorter_test.go
index b072003..fec7c00 100644
--- a/algorithm/sorter_test.go
+++ b/algorithm/sorter_test.go
@@ -14,10 +14,10 @@ type people struct {
 }
 
 // PeopleAageComparator sort people slice by age field
-type peopleAageComparator struct{}
+type peopleAgeComparator struct{}
 
 // Compare implements github.com/duke-git/lancet/lancetconstraints/constraints.go/Comparator
-func (pc *peopleAageComparator) Compare(v1 interface{}, v2 interface{}) int {
+func (pc *peopleAgeComparator) Compare(v1 interface{}, v2 interface{}) int {
 	p1, _ := v1.(people)
 	p2, _ := v2.(people)
 
@@ -65,7 +65,7 @@ var intSlice = []int{2, 1, 5, 3, 6, 4}
 func TestBubbleSortForStructSlice(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestBubbleSortForStructSlice")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := BubbleSort(peoples, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -88,7 +88,7 @@ func TestBubbleSortForIntSlice(t *testing.T) {
 func TestInsertionSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestInsertionSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := SelectionSort(peoples, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -101,7 +101,7 @@ func TestInsertionSort(t *testing.T) {
 func TestSelectionSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestSelectionSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := SelectionSort(peoples, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -114,7 +114,7 @@ func TestSelectionSort(t *testing.T) {
 func TestShellSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestShellSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := ShellSort(peoples, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -127,7 +127,7 @@ func TestShellSort(t *testing.T) {
 func TestQuickSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestQuickSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := QuickSort(peoples, 0, len(peoples)-1, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -140,7 +140,7 @@ func TestQuickSort(t *testing.T) {
 func TestHeapSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestHeapSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := HeapSort(peoples, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -153,7 +153,7 @@ func TestHeapSort(t *testing.T) {
 func TestMergeSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestMergeSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := MergeSort(peoples, 0, len(peoples)-1, comparator)
 	t.Log(sortedPeopleByAge)
 
@@ -166,7 +166,7 @@ func TestMergeSort(t *testing.T) {
 func TestCountSort(t *testing.T) {
 	asssert := internal.NewAssert(t, "TestCountSort")
 
-	comparator := &peopleAageComparator{}
+	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := CountSort(peoples, comparator)
 	t.Log(sortedPeopleByAge)