save project

snake.py

@@ -23,7 +23,13 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
-
+def xy():
+    x=random.randint(1,22)
+    y=random.randint(1,16)
+    x*=30
+    y*=30
+    return x,y
+ax,ay=xy()
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -52,9 +58,8 @@ while True:
         y -= 30
     else:
         y += 30
-if x==ax and y==ay:
-    ax=random.randint(0,660)
-    ay=random.randint(0,480)
+    if x==ax and y==ay:
+        ax,ay=xy()
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去
@@ -66,7 +71,7 @@ if x==ax and y==ay:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (ax, ay))
+    screen.blit(food,(ax,ay))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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