diff --git a/src/utils/index.js b/src/utils/index.js
index e9e55e71cd4d36b5b8d7e0877e047bd85ae079ef..c1906b38cdd2995668ae89141885e7920261b69a 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -1,9 +1,9 @@
-export const is_empty = 0;
+export const is_empty = 'e';
 /**
  * 机器人
  */
-export const is_white = 1;
-export const is_black = 2;
+export const is_white = 'w';
+export const is_black = 'b';
 /**
  * [y, x] === [row, col] === [行，列]
  */