python迭代器python迭代器问题>>>1inks={'aaa':'bbb',\'ccc':'ddd',\'eee':'fff',\'ggg':'hhh'}>>> for each in links print('%s->%s%(each, links[each]))aaa->bbbccc->dddeee->fffggg->hhh我想请问上面的 “:”去哪里了,each,,和links[each]有什么区别??each不是遍历全部了吗?each是遍历前半部份,links[each]是遍历后半部分?