一.基本数据类型
整数:int
字符串:str(注:\\t等于一个tab键)
布尔值: bool
列表:list (元素的集合)
列表用[]
元祖:tuple
元祖用()
字典:dict
注:所有的数据类型都存在想对应的类列里
二.列表所有数据类型:
基本操作:
索引,切片,追加,删除,长度,切片,循环,包含
list
class list(object): \"\"\" list() -> new empty list list(iterable) -> new list initialized from iterable\'s items \"\"\" def append(self, p_object): # real signature unknown; restored from __doc__ \"\"\" L.append(object) -> None -- append object to end \"\"\" (L.append(对象)- >——没有一个对象附加到结束) pass def clear(self): # real signature unknown; restored from __doc__ \"\"\" L.clear() -> None -- remove all items from L \"\"\" (L.clear()- >没有,把所有项目从L) pass def copy(self): # real signature unknown; restored from __doc__ \"\"\" L.copy() -> list -- a shallow copy of L \"\"\" (L.copy()- >列表- L的浅拷贝) return [] def count(self, value): # real signature unknown; restored from __doc__ \"\"\" L.count(value) -> integer -- return number of occurrences of value \"\"\" (L.count(价值)- >整数,返回值的出现次数) return 0 def extend(self, iterable): # real signature unknown; restored from __doc__ \"\"\" L.extend(iterable) -> None -- extend list by appending elements from the iterable \"\"\" (L.extend(iterable)- >没有——从iterable扩展列表通过添加元) pass def index(self, value, start=None, stop=None): # real signature unknown; restored from __doc__ \"\"\" L.index(value, [start, [stop]]) -> integer -- return first index of value. Raises ValueError if the value is not present. (l指数(价值,[开始,[不要]])- >整数,返回第一索引值。提出了ValueError如果不存在的价值。) \"\"\" return 0 def insert(self, index, p_object): # real signature unknown; restored from __doc__ \"\"\" L.insert(index, object) -- insert object before index \"\"\" (l插入(指数(对象)——前插入对象索引) pass def pop(self, index=None): # real signature unknown; restored from __doc__ \"\"\" L.pop([index]) -> item -- remove and return item at index (default last). Raises IndexError if list is empty or index is out of range. (L.pop((指数))- >项目——删除并返回项指数(默认)。提出了IndexError如果列表为空或索引的范围。) \"\"\" pass def remove(self, value): # real signature unknown; restored from __doc__ \"\"\" L.remove(value) -> None -- remove first occurrence of value. Raises ValueError if the value is not present. \"\"\" (L.remove(价值)- >没有,删除第一次出现的值。提出了ValueError如果不存在的价值。) pass def reverse(self): # real signature unknown; restored from __doc__ \"\"\" L.reverse() -- reverse *IN PLACE* \"\"\" pass def sort(self, key=None, reverse=False): # real signature unknown; restored from __doc__ \"\"\" L.sort(key=None, reverse=False) -> None -- stable sort *IN PLACE* \"\"\" pass def __add__(self, *args, **kwargs): # real signature unknown \"\"\" Return self+value. \"\"\" pass def __contains__(self, *args, **kwargs): # real signature unknown \"\"\" Return key in self. \"\"\" pass def __delitem__(self, *args, **kwargs): # real signature unknown \"\"\" Delete self[key]. \"\"\" pass def __eq__(self, *args, **kwargs): # real signature unknown \"\"\" Return self==value. \"\"\" pass def __getattribute__(self, *args, **kwargs): # real signature unknown \"\"\" Return getattr(self, name). \"\"\" pass def __getitem__(self, y): # real signature unknown; restored from __doc__ \"\"\" x.__getitem__(y) <==> x[y] \"\"\" pass def __ge__(self, *args, **kwargs): # real signature unknown \"\"\" Return self>=value. \"\"\" pass def __gt__(self, *args, **kwargs): # real signature unknown \"\"\" Return self>value. \"\"\" pass def __iadd__(self, *args, **kwargs): # real signature unknown \"\"\" Implement self+=value. \"\"\" pass def __imul__(self, *args, **kwargs): # real signature unknown \"\"\" Implement self*=value. \"\"\" pass def __init__(self, seq=()): # known special case of list.__init__ \"\"\" list() -> new empty list list(iterable) -> new list initialized from iterable\'s items # (copied from class doc) \"\"\" pass def __iter__(self, *args, **kwargs): # real signature unknown \"\"\" Implement iter(self). \"\"\" pass def __len__(self, *args, **kwargs): # real signature unknown \"\"\" Return len(self). \"\"\" pass def __le__(self, *args, **kwargs): # real signature unknown \"\"\" Return self<=value. \"\"\" pass def __lt__(self, *args, **kwargs): # real signature unknown \"\"\" Return self三.所有列表数据类型举例
#!/usr/bin/env python # -*- coding:utf-8 -*- #append追加 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name_list.append(\'zhang\') print(name_list) #count制定字符出现几次 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name_list.append(\'zhang\') name_list.append(\'zhang\') name_list.append(\'zhang\') print(name_list.count(\'zhang\')) #extend可扩展,批量往里加数据 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name = [\"aylin\",\"zhang\",\"yan\",\"lin\"] name_list.extend(name) print(name_list) #index找到字符所在的位置 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] print(name_list.index(\'nick\')) #insert插入,往索引里面插入值 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name_list.insert(1,\"zhang\") print(name_list) #pop在原列表中移除掉最后一个元素,并赋值给另一个变量 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name = name_list.pop() print(name) #remove移除,只移除从左边找到的第一个 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name_list.remove(\'nick\') print(name_list) #reverse反转 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] name_list.reverse() print(name_list) #del删除其中元素,删除1到3之间的 name_list = [\"zhangyanlin\",\"suoning\",\"nick\"] del name_list[1:3] print(name_list)四.索引
name_list = [\"zhangyanlin\",\"suoning\"\"aylin\"\"nick\"] print(name_list[0])五.切片
name_list = [\"zhangyanlin\",\"suoning\"\"aylin\"\"nick\"] print(name_list[0:2])六.总长度len
name_list = [\"zhangyanlin\",\"suoning\"\"aylin\"\"nick\"] print(name_list[1:len(name_list)])七.for循环
name_list = [\"zhangyanlin\",\"suoning\"\"aylin\"\"nick\"] for i in name_list: print(i)