be careful of和be careful with有何区别?

be careful of …
注意,小心.后接名词,动名词或从句.
Please be careful of your spelling.
Be careful of what they have said.
be careful with…
小心……
[句型解析]
嘱咐别人小心做事,我们可以用上“Be careful with...”,“with”后接名词或动名词.也可以说“Be careful (not) to do...”或“Be careful that you don’t...”.
[实例]
1. Be careful with the wet paint.
小心,油漆未干.
2. Be careful that you don’t catch a cold. Put on more clothes before you go out.
小心别感冒了.出门之前多穿点衣服.
3. Be careful not to spill the milk.
小心别把牛奶溅出来了.