update doc

docs/convertor.md

@@ -45,7 +45,7 @@ import (
 -   [ToUrlBase64](#ToUrlBase64)
 -   [ToRawStdBase64](#ToRawStdBase64)
 -   [ToRawUrlBase64](#ToRawUrlBase64)
-
+-   [ToBigInt](#ToBigInt)
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -454,7 +454,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func EncodeByte(data any) ([]byte, error)
+func EncodeByte(data interface{}) ([]byte, error)
 ```
 
 <b>Example:</b>
@@ -480,7 +480,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func DecodeByte(data []byte, target any) error
+func DecodeByte(data []byte, target interface{}) error
 ```
 
 <b>Example:</b>
@@ -508,7 +508,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func DeepClone[T any](src T) T
+func DeepClone[T interface{}](src T) T
 ```
 
 <b>Example:</b>
@@ -753,7 +753,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func ToStdBase64(value any) string
+func ToStdBase64(value interface{}) string
 ```
 
 <b>Example:</b>
@@ -785,7 +785,7 @@ func main() {
     afterEncode = convertor.ToStdBase64(intVal)
     fmt.Println(afterEncode)
 
-    mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
+    mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
         A string
         B int
     }{"hello", 3}}
@@ -825,7 +825,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func ToUrlBase64(value any) string
+func ToUrlBase64(value interface{}) string
 ```
 
 <b>Example:</b>
@@ -855,7 +855,7 @@ func main() {
     afterEncode = convertor.ToUrlBase64(intVal)
     fmt.Println(afterEncode)
 
-    mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
+    mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
         A string
         B int
     }{"hello", 3}}
@@ -894,7 +894,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func ToRawStdBase64(value any) string
+func ToRawStdBase64(value interface{}) string
 ```
 
 <b>Example:</b>
@@ -921,7 +921,7 @@ func main() {
     afterEncode = convertor.ToRawStdBase64(intVal)
     fmt.Println(afterEncode)
 
-    mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
+    mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
         A string
         B int
     }{"hello", 3}}
@@ -958,7 +958,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func ToRawUrlBase64(value any) string
+func ToRawUrlBase64(value interface{}) string
 ```
 
 <b>Example:</b>
@@ -985,7 +985,7 @@ func main() {
     afterEncode = convertor.ToRawUrlBase64(intVal)
     fmt.Println(afterEncode)
 
-    mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
+    mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
         A string
         B int
     }{"hello", 3}}
@@ -1013,4 +1013,34 @@ func main() {
     // dHJ1ZQ
     // ZXJy
 }
+```
+
+### <span id="ToBigInt">ToBigInt</span>
+
+<p>Convert value to bigInt.</p>
+
+<b>Signature:</b>
+
+```go
+func ToBigInt(v interface{}) (*big.Int, error)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/convertor"
+)
+
+func main() {
+    n := 9876543210
+    bigInt, _ := convertor.ToBigInt(n)
+
+    fmt.Println(bigInt)
+    // Output:
+    // 9876543210
+}
 ```