day2列表的使用

names=["4ZhangYang","#!Guyun","xXiangpeng",["alex","jack"],"chenronghua","XuLiangChen"] 12.循环 #列表循环 for i in names: print(i) #跳着打印,隔一个取一个 print(names[0:-1:2])#头尾可以省略,等于下边 print(names[::2]) 13.继续copy import copy person=[‘name‘,[‘saving‘,100]] ‘‘‘ #浅copy三种方式 p1=copy.copy(person) p2=person[:] p3=list(person) ‘‘‘ p1=person[:] p2=person[:] p1[0]=‘alex‘ p2[0]=‘fengjie‘ p1[1][1]=50 print(p1) print(p2)