auto save

snake.py

@@ -24,15 +24,35 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==loacls.K_RIGHT and setheading !='left':
+                setheading='right'
+                snake_head=right
+            if event.key==loacls.K_LEFT and setheading !='right':
+                setheading='left'
+                snake_head=left
+            if event.key==loacls.K_UP and setheading !='down':
+                setheading='up'
+                snake_head=up
+            if event.key==loacls.K_DOWN and setheading !='up':
+                setheading='down'
+                snake_head=down
+    if setheading=='right' :           
         x=x+30
+    elif setheading=='left' :           
+        x=x-30
+    elif setheading=='up' :           
+        y=y-30
+    elif setheading=='down' :           
+        y=y+30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     screen.blit(right, (x, y))
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    # screen.blit(body, (210, 120))
+    # screen.blit(body, (180, 120))
+    # screen.blit(body, (180, 90))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面