save project

snake.py

@@ -18,19 +18,41 @@ down = pygame.image.load('down.png')
 x,y = 240,120
 x,y = 240,120
 sb=[(180,90),(180,120),(210,120),(x,y)]
 sb=[(180,90),(180,120),(210,120),(x,y)]
 sth='right'
 sth='right'
+ioit=right
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
         if event.type == locals.KEYDOWN:
         if event.type == locals.KEYDOWN:
-    x+=30
+            if event.key==locals.K_RIGHT and sth!='left':
+                sth='right'
+                ioit=right
+            if event.key==locals.K_LEFT and sth!='right':
+                sth='left'
+                ioit=left
+            if event.key==locals.K_DOWN and sth!='up':
+                sth='down'
+                ioit=down
+            if event.key==locals.K_UP and sth!='down':
+                sth='up'
+                ioit=up
+
+    if sth=="right":
+        x +=30
+    elif sth=="left":
+        x -=30
+    elif sth=="up":
+        y -=30
+    else:
+        y +=30
+
     sb.append((x,y))
     sb.append((x,y))
     sb.pop(0)    
     sb.pop(0)    
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right,sb[-1])
+    screen.blit(ioit,sb[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(sb)-1):
     for i in range(len(sb)-1):
         screen.blit(body,sb[i])
         screen.blit(body,sb[i])
@@ -40,4 +62,4 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    idiot.tick(10)
+    idiot.tick(3)
\ No newline at end of file