save project

snake.py

@@ -55,11 +55,14 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    
     if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-        
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=num1*30-30
+        apple_y=num2*30-30
+    else:
+        position.pop(0)   
     
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -68,9 +71,9 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-
+    
     # 将果实画上去
-    screen.blit(food, (apple_x, apple_y))
+    screen.blit(food,(apple_x,apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file