save project

snake.py

@@ -57,9 +57,13 @@ while True:
     position.append((x, y))
    
     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=30*num1-30
+        apple_y=30*num2-30
+
+    else:
         position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -74,3 +78,5 @@ while True:
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
+
+   
\ No newline at end of file