save project

snake.py

@@ -21,8 +21,8 @@ down = pygame.image.load('down.png')        # 头 朝下
 x, y = 240, 120
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 
-a_x=random.randint(0,660)
-a_y=random.randint(0,480)
+a_x=360
+a_y=300
 
 
 setheading = "right"
 setheading = "right"
 snake_head = right
 snake_head = right
@@ -57,10 +57,12 @@ while True:
         y += 30
         y += 30
     position.append((x, y))
     position.append((x, y))
     if x==a_x and y==a_y:
     if x==a_x and y==a_y:
-        a_x=random.randint(0,660)
-        a_y=random.randint(0,480)
-
-    position.pop(0)
+        n1=random.randint(1,22)
+        n2=random.randint(1,16)
+        a_x=30*n1-30
+        a_y=30*n2-30
+    else:
+        position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去