Many owners sitting on 3% to 4% mortgage rates still hesitate to trade up, but the gap between their existing rate and today’s has narrowed enough that life events like family changes and relocations are starting to push more listings onto the market, according to Realtor.
上海建国东路一家冷鲜肉店铺一度动起了“跨界”的主意。为拓展消费群体，吸引来去匆匆的上班族，店里想尝试卖蒸包子。
，这一点在旺商聊官方下载中也有详细论述
Кадр: @aroundtheearth.world
* 时间复杂度：O(len1 + len2)，空间复杂度：O(len2)（栈+Map的空间）