save project

snake.py

@@ -21,6 +21,7 @@ x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 SB_x=300
 SB1_y=360
+
 setheading = "right"
 snake_head = right
 
@@ -53,10 +54,14 @@ while True:
     else:
         y += 30
     if x == SB_x and y == SB1_y:
-        SB_x=random.randint(0,660)
-        SB1_y = random.randint(0,480)
+        sb_x=random.randint(1,22)
+        sb_y=random.randint(1,16)
+        SB_x=sb_x*30-30
+        SB1_y=sb_y*30-30
+    else:
+        position.pop(0)
     position.append((x, y))
-    position.pop(0)
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去