Python function any () and all ()

Any (iterable)

All (iterable)

Any () differs from the all () function, any is arbitrary, and all is all.

Version: This function is suitable for version 2.5 and above, compatible with Python3 version.

Any (iterable) Description: Parameter iterable: can iterate object;

If all values of iterable are 0, ' ' or false, then the result is false, and if there is a value in all elements that is not 0, ' ' or false, the result is true

The function is equivalent to:

def any (iterable):

For element in iterable:

If element:

Return False

Return True

Example:

>>> any ([' A ', ' B ', ' C ', ' d '])  #列表list, the elements are not empty or 0true>>> any ([' A ', ' B ', ', ' d '])  #列表list, There is an empty element true>>> any ([0, ', ', False])  #列表list, the element is all 0, ',falsefalse>>> any (' A ', ' B ', ' C ', ' d '))  #元组tuple, the elements are not empty or 0true>>> any ((' A ', ' B ', ', ' d '))  #元组tuple, there is an empty element true>>> any (0, ', false))  #元组tuple, the element is all 0, "', Falsefalse >>> any ([]) # empty list false>>> any (()) # Empty tuple false

　　

All (iterable)

If all elements of iterable are not 0, ', false, or iterable are empty, all (iterable) returns True, otherwise false; The function is equivalent to:

defall(iterable):

     for element  in iterable:          if not element:              return False      return TrueExample:

>>> all ([' A ', ' B ', ' C ', ' d '])  #列表list, the elements are not empty or 0true>>> all ([' A ', ' B ', ', ' d '])  #列表list, There is an empty element false>>> all ([0, 3])  #列表list, there is an element of 0 false  >>> all ((' A ', ' B ', ' C ', ' d '))  #元组tuple, the elements are not empty or 0true>>> all ((' A ', ' B ', ', ' d ')  #元组tuple, there is an empty element false>>> all (0, 1, 2, 3))  #元组tuple, there is an element of 0 false  >>> all ([]) # Empty list true>>> All (()) # Empty tuple True

Note: Empty tuple, empty list return value is true, here is to pay special attention to

Python function any () and all ()