看了好多关于such和so的用法和区别，但是还是有点混淆，请高手帮忙解释一下！ 疑问： 我所了解到的是这样

such中的③和so中的③在结构上是一样的，这时候要看形容词，如果形容词是few/little/much/many这时候就用so，如果是其他形容词就用such。
例如：He has so much money that he can buy a new car.
He has so many friends that he always feels happy.
He is very busy. He has so little time that he can't go out with her.
They are such difficult problems that we can't work them out.
They are such interesting books that I want to read them once more.
It was such bad weather that I had to stay at home.
仔细看看这几个例句你就会明白了。
希望对你有帮助，满意请采纳。

和“that”连用时，意思基本一样，但句型结构不同。意思是：“如此/这么……以致于……”，
1）“so…that…”句型结构为：
so + adj. (adv.) +that…
so + adj. +a(an)+单数n. +that…
so +many(few)+复数n. +that…
so +much(little)+不可数n. +that…如：
This book is so interesting that I have read it three times.
这本书如此有趣，我已经看了三遍。
He spoke so fast that we couldn’t understand him.
他说得太快，我们都未能听懂他的话。
It was so hot a day that nobody wanted to do anything.
天气很热，谁都不想干活。
There were so many people that we could hardly move on.
这么多人，我们简直无法继续往前走。
2）“such…that…”句型结构为：
such + a (an)+adj. +单数n. +that…
such + adj. +复数n. +that…
such +adj. +不可数n. +that…
She is such a pretty girl that everyone likes her.
她是个很可爱的小姑娘，大家都喜欢她。
They are such delicious cakes that I want to eat another two.
这么可口的蛋糕，我还想再吃两块。
It is such sweet milk that we all want to drink it.
这么香的牛奶，我们都想喝。

③so+adj+可数n复数形式 这一条是没有的。