Python3基本数据类型 - 列表（list）

列表是最常用的Python数据类型，它作为一个方括号内的逗号分隔值出现，列表的数据项不需要具有相同的类型。

name_list = ['alex', 'seven', 'eric']
或
name_list ＝ list(['alex', 'seven', 'eric'])

列表基本操作:

• 索引

• 切片

• 追加

• 删除

• 长度

• 切片

• 循环

• 包含

详细如下 

append 追加

user_list = ['xmzncc','asd','fcc']
user_list.append('123')
print(user_list)

clear 清空

user_list = ['xmzncc','asd','fcc']
user_list.clear()
print(user_list)

copy 拷贝（浅拷贝）

user_list = ['xmzncc','asd','fcc']
v = user_list.copy()
print(v)

count 计数

user_list = ['xmzncc','asd','fcc','xmzncc']
v = user_list.count('xmzncc')
print(v)

extend 扩展原列表

user_list = ['xmzncc','asd','fcc']
user_list.extend(['qwe'])
print(user_list)

index 查找元素索引

user_list = ['xmzncc','asd','fcc']
v = user_list.index('xmznc')
print(v)

pop 删除索引，获取元素

user_list = ['xmzncc','asd','fcc']
v = user_list.pop(0)
print(v)
print(user_list)

remove 删除元素

user_list = ['xmzncc','asd','fcc']
v = user_list.remove('xmzncc')
print(v)
print(user_list)

reverse 翻转

user_list = ['xmzncc','asd','fcc']
user_list.reverse()
print(user_list)

sort 排序
从大到小

nums = [11,12,13,4,6,7,99,101]
nums.sort()
print(nums)

从小到大

nums = [11,12,13,4,6,7,99,101]
nums.sort(reverse=True)
print(nums)