张博的博客

摘要： 2022-01-25,12点28 python 列表叠加:https://blog.csdn.net/pzl_pzl/article/details/106236676 a=[[1,2],[2,3]]sum(a.tolist()) #报错,因为默认sum是对0求和sum(a.tolist(),[]) 阅读全文