auto save

snake.py

@@ -45,8 +45,8 @@ while True:
                 setheading = 'down'
                 snake_head = down
     if apple_x==x and apple_y==y:
-        apple_x=random(0,360)
-        apple_y=random(0,300)
+        apple_x=30*random(0,360)-30
+        apple_y=30*random(0,300)-30
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30