"if any"和"if anything"有什么区别？

if any ------- 明确了范围：一般是指如果有的话，或者就算有的话。
There is few useful books, if any.
if anything
------没有明确范围：更可能的是，总之;
If anything, the record of quantitative easing in japan should heighten worries of deflation.

1、 if any ------- 明确了范围：Tom, please lend me a book on the history of China IF ANY  IF ANY==if you have any books of the sort I mention.

2、 if anything ------没有明确范围：
Please give me someting to drink IF ANYTHING
IF ANYTHING == if you have anything / if there is anything that I can drink.

3、 if so ------指代某个明确的动作：
I - Will Tom come tomorrow?
- I think so.
- IF SO, i Will tell him what I think of his travel plan.
IF SO== if he comes tomorrow

现在你明白了吗？你的问题很有质量，是我碰到的高质量问题之一，希望我的回答能帮到你。