列表的学习--深浅copy，切片，循环列表

#!/usr/bin/python
import copy

#filename:test2018.py

names = ["4Zhangyang","#!Guyun","xXiangPeng",  ["alex","jack"],"ChenRongHua"]

name2 = names.copy()
#等同于
print(names)
print(name2)
names[2] = "祥鹏"
names[3][0]="ALEX"
print(names)
print(name2)
#循环：
for i in names:
    print(i)

# 跳着切片：
print(names[0:-1:2])

#浅copy：只copy第一层，下层的不copy
'''举例：
a=1
b=2
a=b
b=1
a=3
b=1'''

结果：