BZM

摘要： #切片 li = [1,3,2,'a',4,'b',5,'c'] print(li[0:7:2]) #取1，2，4，5 print(li[1:6:2]) #取3,'a','b' print(li[7:8]) #取'c' print(li[5:0:-2])#取'b','a','3' lis = [['k',['qwe',20,{'k1':['tt',3,'1']},89],& 阅读全文