一，列表（list）
1，创建列表
lst = [1,2,3,4,5] # 列表内是数字lst = ['a', 'b', 'c', 'd'] # 列表内是字符lst = ['my', 'name', 'is', 'victor'] # 列表内是字符串
2，基本操作
a，连接
lst1 = [1,2,3]lst2 = [4,5,6]print (lst1 + lst2)>>>[1,2,3,4,5,6]
b，判断
lst = [1,2,3,4,5,6]a = 1print (a in lst)>>>True
c，复制
lst = ["a","b","c"]print (lst*2)>>>["a","b","c","a","b","c"]
d，索引
lst = [1,2,3,4,5,6,7,8,9,0]print (lst[0],lst[5])print (lst[-1])>>>1 60
e，切片
lst = [1,2,3,4,5,6,7,8,9,0]print (lst[3:8])print (lst[:5])print (lst[5:])print (lst[5:-1])>>>[4, 5, 6, 7, 8][1, 2, 3, 4, 5][6, 7, 8, 9, 0][6, 7, 8, 9]
f，步长
lst = [1,2,3,4,5,6,7,8,9,0]print (lst[0:5:2]) # 0代表索引起始值，5代表索引结束值，2代表步长print (lst[::2]) # 以步长2，从第一个值开始截取整个list列表print (lst[3::2]) # 从索引起始值(第三个值) 4到结束，步长2截取整个列表>>>1,3,51,3,5,7,94,6,8,0
三，常用功能
a，追加
lst = [1,2,3,4,5,6,7,9,0]lst.append("hello") # 追加的是字符串print (lst)>>> [1,2,3,4,5,6,7,9,0,"hello"] lst = [1,2,3,4,5,6,7,9,0]lst.append(["a","b","c"])print (lst)>>>[1,2,3,4,5,6,7,9,0,["a","b","c"]] # 追加是整个列表（list）
extend()
lst = [1,2,3,4,5,6,7,9,0]lst.extend(["a","b","c"])print (lst)>>>[1,2,3,4,5,6,7,9,0,"a","b","c"] # 追加列表中的单个元素（int或str）
b，删除
remove()
list = ["my","my","name","is","victor"]list.remove("my") # 删除匹配到的第一个元素print (lst)>>> ["my","name","is","victor"] del
lst = ["my","my","name","is","victor"]del.lst[2:] # 删除列表的某个索引值print (lst)>>>["my","name"]
del.clear()
lst = ["my","my","name","is","victor"]del.clear() # 清空列表print (lst)>>>[]
c，插入
lst = list[rang(10)]print lst>>>[0,1,2,3,4,5,6,7,8,9]lst.insert(3,a) # 此处代表在索引3处，即第4个值处插入aprint lst>>>[0,1,2,a,4,5,6,7,8,9]
d，复制
lst1 = list[rang(10)] lst2 = list1.copy()lst2[2] = "hello"print lst1print lst2>>>[0,1,2,3,4,5,6,7,8,9][0,1,"hello",2,3,4,5,6,7,8,9]
e，排序
lst1 = [45,23,89,67,10,58]lst2 = ["cd","ae","de"]lst1.sort()lst2.sort()print (list1,list2)>>>[10, 23, 45, 58, 67, 89] ['ae', 'cd', 'de']lst1.sort(reverse = True)lst2.sort(reverse = True)print (lst1,lst2)
d，计数
x=[1,2,3,1,[1],[1,1]]print (x.count(1))>>>2