Python String

String format

txt = '{:>30}'.format(word)  //right side
txt = '{:<30}'.format(word)  //left side
txt = '{:^30}'.format(word)  //center

txt = "tessttt"
txt.center(16,'-')  //center
txt.ljust(16,'-')   //left side 
txt.rjust(16,'-')   //right side

Check Character in String

A = "this is tesst"
for num in range(0,len(A)):
    print (A[num])
    if A[num] in B:
        count_same = count_same + 1

List

In & not in

if "test" in list_a
  print('true')

if "game" not in list_a
  print('false')

append & extend & remove

Dictionary

key กับ value

empty_dict = {}
url = 'http://www.google.com/'
res = 'None'
empty_dict ={url: res}

print(empty_dict)
print(empty_dict[url])

print('Name: ', empty_dict.get('http://www.google.com/'))



empty_dict.clear()

update() & copy()

items() & keys() & values()

get() & setdefault(key,value)

Nested Dictionaries

Tuple

ไม่สามารถแก้ไขข้อมูลได้

test = ("apple", "banana", "cherry")

Set

s = {[35,'asdas','game']}

add & update

s.add('game')

remove() & discard()

pop() & clear()

copy() & union()

intersection() & intersection_update()

difference() & difference_update()

symmetric_difference() & symmetric_difference_update()

สร้าง set ที่ไม่ซ้ำกัน

isdisjoint() & issubset() & issuperset()