[转载] python字典类方法

参考链接： Python字典dictionary| popitem方法

class dict(object):

"""

dict() -> new empty dictionary

dict(mapping) -> new dictionary initialized from a mapping object's

(key, value) pairs

dict(iterable) -> new dictionary initialized as if via:

d = {}

for k, v in iterable:

d[k] = v

dict(**kwargs) -> new dictionary initialized with the name=value pairs

in the keyword argument list. For example: dict(one=1, two=2)

"""

def clear(self): # real signature unknown; restored from __doc__

""" D.clear() -> None. Remove all items from D. """

pass

def copy(self): # real signature unknown; restored from __doc__

""" D.copy() -> a shallow copy of D """

pass

@staticmethod # known case

def fromkeys(*args, **kwargs): # real signature unknown

""" Returns a new dict with keys from iterable and values equal to value. """

pass

def get(self, k, d=None): # real signature unknown; restored from __doc__

""" D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None. """

pass

def items(self): # real signature unknown; restored from __doc__

""" D.items() -> a set-like object providing a view on D's items """

pass

def keys(self): # real signature unknown; restored from __doc__

""" D.keys() -> a set-like object providing a view on D's keys """

pass

def pop(self, k, d=None): # real signature unknown; restored from __doc__

"""

D.pop(k[,d]) -> v, remove specified key and return the corresponding value.

If key is not found, d is returned if given, otherwise KeyError is raised

"""

pass

def popitem(self): # real signature unknown; restored from __doc__

"""

D.popitem() -> (k, v), remove and return some (key, value) pair as a

2-tuple; but raise KeyError if D is empty.

"""

pass

def setdefault(self, k, d=None): # real signature unknown; restored from __doc__

""" D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D """

pass

def update(self, E=None, **F): # known special case of dict.update

"""

D.update([E, ]**F) -> None. Update D from dict/iterable E and F.

If E is present and has a .keys() method, then does: for k in E: D[k] = E[k]

If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v

In either case, this is followed by: for k in F: D[k] = F[k]

"""

pass

def values(self): # real signature unknown; restored from __doc__

""" D.values() -> an object providing a view on D's values """

pass

[转载] python字典类方法相关推荐

[转载] Python字典的setdefault()方法
参考链接: Python字典setdefault() Python字典的setdefault()方法 (2012-06-22 02:18:05)转载▼ setdefault(key[, default ...
[转载] Python 字典删除元素clear、pop、popitem
参考链接: Python字典pop() 原文网站:http://www.iplaypython.com/jinjie/jj116.html 同其它python内建数据类型一样,字典dict也是有一些实 ...
[转载] Python字典中items()和iteritems()区别
参考链接: Python字典items() 微信公众号字典介绍: 一.字典概念字典是Python语言中唯一的映射类型. 映射类型对象里哈希值(键,key)和指向的对象(值,value)是一对多的的 ...
[转载] python 字典查找_python字典的增，删，改，查
参考链接: Python字典clear() 字典---dict 1.字典是无序,可变的数据类型 2.字典:用于存储数据,存储大量数据,字典要比列表快,将数据和数据之间进行关联定义一个字典: dic ...
[转载] Python字典及基本操作（超级详细）
参考链接: Python字典| values 字典是 Python 提供的一种常用的数据结构,它用于存放具有映射关系的数据. 比如有份成绩表数据,语文:79,数学:80,英语:92,这组数据看上去像两 ...
[转载] python字典查询功能_Python中的字典功能
参考链接: Python中的字典dictionary方法 (cmp(), len(), items()-) python字典查询功能 Let's check out some important fu ...
[转载] Python字典按照keys排序输出为列表
参考链接: Python字典dictionary | keys()方法 python 字典按关键值keys排序输出. sorted(dict.items)输出一个排好序的二维列表. 怎么取排好序的ke ...
[转载] python字典更新值_Python–字典元组值更新
参考链接: Python字典| update方法有时在处理元组数据时,我们在执行其版本时会遇到问题,原因是它是不可变的.讨论字典中元组值的版本.这在许多领域都有应用,因为字典通常是web开发和数据科 ...
[转载] Python 字典（Dictionary) get()方法
参考链接: Python中字典dictionary的get方法 Python 字典(Dictionary) get()方法描述 Python 字典(Dictionary) get() 函数返回指定键 ...

[转载] python字典类方法

[转载] python字典类方法相关推荐

最新文章

热门文章