update

third/wechat.go

@@ -56,7 +56,7 @@ func WeChat_Pkcs7Unpad(data []byte, blockSize int) ([]byte, error) {
 	if n == 0 || n > len(data) {
 		return nil, ErrInvalidPKCS7Padding
 	}
-	for i := 0; i < n; i++ {
+	for i := range n {
 		if data[len(data)-n+i] != c {
 			return nil, ErrInvalidPKCS7Padding
 		}