save project

snake.py

@@ -19,6 +19,7 @@ down = pygame.image.load('down.png')        # 头 朝下
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
+apple_x,apple_y=360,300
 
 setheading = "right"
 snake_head = right
@@ -52,6 +53,12 @@ while True:
     else:
         y += 30
     position.append((x, y))
+    if x==apple_x and y==apple_y:
+        a=random.randint(0,600)
+        s=random.randint(0,480) 
+        apple_x=a*30-30
+        apple_y=s*30-30 
+    else:
         position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -60,10 +67,6 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-    apple_x,apple_y=360,300
-    if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,600)
-        apple_y=random.randint(0,480)   
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
     # 刷新画面