dream of doing与 dream about doing 的区别,要详细的,最好带例句

dream of (about)的含义是“考虑那些自己认为不会发生的事”,这时应当用介词of,在表示“梦中看到什么”时,通常用about.表示梦中见到.I dreamed about you last night.我昨夜里梦到你了.He often dreams about home....