python基础—列表的使用[]

names = ['zhangyang','guyun','xiangpeng','xuliangchen']
print(names[0])
print(names[1:3])#切片
print(names[0:4:2])#加步长
names.append("leihaidong")
names.insert(1,"chenronghua")#插入某元素，位置，名称
names[2] = "xiedi"#改
names.remove("chenronghua")#删
del names[0]#删
names.pop()#如果不输入下标，默认删最后一个
print(names.index("xiedi"))#查找位置
print(names)
print(names.count('xiedi'))#计数
#names.clear()#清空
names.reverse()#反转
names.sort()#排序
print(names)
name2 = [1,2,3,4]
names.extend(name2)
print(names)
name3 = names.copy()#3种浅copy
name4 = names[:]
name5 = list(names)
print(name3)