Python intrinsic and anonymous functions

A built-in function

　　

# Print (ABS ( -1)) # Print (All ([up to, ' a ', None]) # Print (All ([])) #bool值为假的情况: None, Empty, 0,false# # Print (any ([])) # Print ( [', None,false])) #True # Print (Any ([", None,false])) #False # Print (Any ([', none,false,1])) #True #bin,oct,hex# print (BIN) # Print ( Oct (Ten)) # print (hex) #bytes #unicode----encode----->bytes# print (' Hello '. Encode (' Utf-8 ')) # Print (bytes (' Hello ', encoding= ' Utf-8 ')) #callable # print (callable (bytes)) # Print (callable (ABS)) #chr, ord# print (CHR) # Print ( CHR) # Print (Ord (' # ')) #内置函数, also known as the Factory function # int# x=1 #x =int (1) # Print (type (x)) # X=int (2) Complexfloatstrlisttupledictset #可变集合frozenset #不可变集合 # s={1,2,3,4} #s =set ({1,2,3,4}) # Print (type (s)) # # S1=frozenset ({1,2,3,4}) # Print (Type (S1)) #dir # Import sys# # sys.path# # sys.argv# print (dir (sys)) #divmod # Print (Divmod (10,3)) # Print (Divmod (102,20)) #enumerate # l=[' A ', ' B ', ' C ']# res=enumerate (L) # for I in res:# print (i) # for Index,item in Enumerate (l): # print (Index,item) #globals, Locals #查看全局作用域和局部作用域 # Print (Globals ()) #hash # Print (HasH (' abcdefg123 ') # Print (hash (' abcdefg123 ')) # Print (hash (' abcdefg123 ')) # Print (hash (' abcdefg123 ')) #给函数加文档解释, use single quotes, Double quotes, three-quote def func (): # ' # ' # Test Function #: return: # ' pass# print (Help (func)) #id: Is the function of the Python interpreter, it only reflects the change Volume in memory address # but not real memory address # x=1# print (ID (x)) # def func ():p ass# Print (func) # Print (func) #isinstance # x=1# Print (type (x) is int) # Print (Isinstance (x,int)) #x =int (1) #迭代器iternext #len#max# print (max ([1,2,3,10])) # Print (max ([' A ', ' B ']) # print ( MIN ([1,2,3,10])) #pow # Print (POW (3,2,2)) #3 **2%2#range# #repr, str# print (Type (str (1)) # Print (Type (repr (1)) # reversed# l=[1, ' A ', 2, ' C ']# print (list (reversed (L))) # Print (L) #slice # l=[1,2,3,4,5,6]# print (L[0:4:2]) # # S=slice ( 0,4,2) # Print (L[s]) #sorted # l=[1,10,4,3,-1]# print (sorted (l,reverse=true)) #sum # Print (sum ([1, 2,3]) # # print (SUM (i For I in range) #vars # import m1# print (VARs (m1) = = m1.__dict__) #zip: Zip # s= ' hellosssssssssssssssss ' # l=[1,2,3,4,5]## Print (list (Zip (s,l))) #__import__import sys# m_name=input (' Module>>:') # if m_name = = ' sys ': # m=__import__ (m_name) # print (M) # print (M.path) # # sys=__import__ (' sys ') # print (SYS) #rou Ndprint (Round (3.565,2)) print (round (3.555,2)) #filter, map,reduce focus #max min sorted# Object-oriented objectsuper# __dict__ isinstanceissubclassclassmethodstaticmethodpropertydelattrhasattrsetattrgetattr# Understanding Compileevalexec

Two anonymous functions

　　

def func (x,y,z=1):    return x+y+z# Print (func) # Print (func) #匿名函数: 1. No Name 2: The function body comes with return# print (lambda x,y,z=1: X+Y+Z) F=lambda x,y,z=1:x+y+zprint (f) Print (f (+)) # x=1# # print (x) # Print (1) #匿名函数的应用场景: #应用于一次性的场景, temporary use

　　

Python intrinsic and anonymous functions