save project

snake.py

@@ -23,6 +23,7 @@ x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
+snake_head = right
 
 while True:
     for event in pygame.event.get():
@@ -52,12 +53,14 @@ while True:
         y -= 30
     else:
         y += 30
-     position.append((x, y))
+    position.append((x, y))
     if x == apple_x and y == apple_y:
         num1 = random.randint(1,22)
         num2 = random.randint(1,16)
-        apple_x = 
-    position.pop(0)
+        apple_x = num1*30 - 30
+        apple_y = num2*30 - 30
+    else:
+        position.pop(0)
 
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -66,7 +69,6 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
     # 刷新画面