save project

snake.py

@@ -5,7 +5,8 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
-screen = pygame.display.set_mode((660, 480)
+screen = pygame.display.set_mode((660, 480))
+Fps=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
@@ -13,24 +14,33 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 left=pygame.image.load("left.png")
 up=pygame.image.load("up.png")
-
-x,y=240,140
+down=pygame.image.load("down.png")
+x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+setheading='right'
 while True:
     for event in pygame.event.get():
         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==locals.K_RIGHT and sethding != "left"
+            if event.key==locals.K_RIGHT and setheading != "left":
                 setheading='right'
-            if event.key==locals.K_LEFT and setheading !="right"
-                setheading=='left'
-            if event.key==locals.K_UP and setheading !="dowm"
-                setheading=='up'
-            if event.key==locals.K_DOWN and setheading !="up"
-                setheading='dowm'
-    x += 30
+            if event.key==locals.K_LEFT and setheading !="right":
+                setheading='left'
+            if event.key==locals.K_UP and setheading !="down":
+                setheading='up'
+            if event.key==locals.K_DOWN and setheading !="up":
+                setheading='down'
+    if setheading=="right":                
+        x += 30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
+
     position.append((x,y))
     position.pop(0)
     # 将背景图画上去
@@ -38,9 +48,10 @@ while True:
     # 将贪吃蛇画上去
     screen.blit(right, (x,y))
     # 将贪吃蛇的身体画上去
-    for i in range(len(position-1))
+    for i in range(len(position)-1):
         screen.blit(body,position[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    Fps.tick(3)
\ No newline at end of file