save project

snake.py

@@ -53,10 +53,17 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    #position.pop(0)
     if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
+        n1=random.randint(1,22)
+        n2=random.randint(1,16)
+        apple_x=n1*30-30
+        apple_y=n2*30-30
+    else:
+        position.pop(0)
+
+
+
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去