auto save

snake.py

@@ -29,28 +29,31 @@ while True:
             if event.key == locals.K_UP and setheading!='down':
                 setheading='up'
                 snake_head=up
+                y=y-30
             if event.key == locals.K_DOWN and setheading!='up':
                 setheading='down'
                 snake_head=down
+                y=y+30
             if event.key == locals.K_RIGHT and setheading!='left':
                 setheading='right'
                 snake_head=right
+                x=x+30
             if event.key == locals.K_LEFT and setheading!='right':
                 setheading='left'
                 snake_head=left
-    
-    if setheading=='right':
-        x=x+30
-    elif setheading=='left':
-        x=x-30
-    elif setheading=='down':
-        y=y+30
-    else :
-        y=y-30
+                x=x-30
+    # if setheading=='right':
+    #     x=x+30
+    # elif setheading=='left':
+    #     x=x-30
+    # elif setheading=='down':
+    #     y=y+30
+    # else :
+    #     y=y-30
     v.append((x,y))
     v.pop(0)
     # 将背景图画上去
-    screen.blit(background, (990,990))
+    screen.blit(background, (0,0))
     # 将贪吃蛇画上去
     screen.blit(snake_head, v[-1])
     # 将贪吃蛇的身体画上去