Python List+tuple+dict+set Summary

Create list:l = [' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ']

Show List:l[0]

Traversing List:print (L) and for loops

Update List:append () and insert () and direct assignment

Delete List:pop () and pop (n)

List features:

can add delete

Li = [' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ']print (LI) for name in Li:print (name)

　　

Create Tuple:tu = (' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ')

Show Tuple:tu[0]

Traversing Tuple:print (Tu) and for loops

Update tuple: cannot be updated

Delete tuple: cannot be deleted

Tuple characteristics: Can not be changed, if you create a tuple after an element, to add ","

Tu = (' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ') print (TU) for name in Tu:print (name)

　　

Create Dict:di = {' Adam ': +, ' Lisa ': +, ' Bart ': ", ' Gechong ':", ' kongming ': 100}

Show dict:di[' Adam '] and Di.get (' Adam ')

Traversing Dict:print (Di) and for loops

Di = {' Adam ': +, ' Lisa ': +, ' Bart ': ' Gechong ': +, ' kongming ': 100}for key in Di:print (key)

　　

Di = {' Adam ': +, ' Lisa ': +, ' Bart ': ' Gechong ': +, ' kongming ': 100}for key in Di:print (Di[key])

　　

Update Dict: Assign a value to the corresponding location

Delete dict:

Dict Features:

1: Fast Search speed

2: Wasted Space

3:key can not be repeated, and not variable

4: Data disordered emissions

Create set:s = set ([' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ')

Show set:

s = set ([' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ') ') if ' test ' in S:print (' Test ') else:print (' No ')

　　

Traverse Set:print (s)

s = set ([' Adam ', ' Lisa ', ' Bart ', ' gechong ', ' kongming ') ') for name in S:print (name)

　　

Update Set:s.add ()

Delete Set:s.remove ()

Python List+tuple+dict+set Summary