save project

snake.py

@@ -54,7 +54,13 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    if x==apple_x and y==apple_y:
+        unm1 = random.randint(1,22)
+        unm2 = random.randint(1,16)
+        apple_x=30*unm1-30
+        apple_y=30*unm2-30
+    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
@@ -62,9 +68,6 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-    if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))
     # 刷新画面