save project

snake.py

@@ -9,9 +9,14 @@ screen = pygame.display.set_mode((660, 480))
 fps=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
-
-setheading="right"
-ketke_head=right
+right = pygame.image.load('right.png')
+food = pygame.image.load('apple.png')
+body = pygame.image.load('body.png')
+up = pygame.image.load("up.png")
+left = pygame.image.load("left.png")
+down = pygame.image.load("down.png")
+setheading = "right"
+snake_head = right
 x,y=210,120
 p=[(180, 90),(180, 120),(210, 120),(x,y)]
 while True:
@@ -20,14 +25,32 @@ while True:
             # 接收到退出事件后退出程序
             exit()
         if event.type == locals.KEYDOWN:
-            if evcent.
-    x+=30
+            if event.key==locals.K_RIGHT and setheading != "left":
+                setheading = "right"
+                snake_head = right
+            if event.key==locals.K_LEFT and setheading != "right":
+                setheading = "left"
+                snake_head = left
+            if event.key==locals.K_UP and setheading != "down":
+                setheading = "up"
+                snake_head = up
+            if event.key==locals.K_DOWN and setheading != "up":
+                setheading = "down"
+                snake_head = down
+    if setheading == "right":
+        x += 30
+    if setheading == "left":
+        x -= 30
+    if setheading == "up":
+        y -= 30
+    if setheading == "down":
+        y += 30    
     p.append((x,y))
     p.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, p[-1])
+    screen.blit(snake_head, p[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(p)-1):
         screen.blit(body,p[i])