Elements in the list ： brackets , Comma separated
names=['jack','andy','kiki','alicy']# List of names
message_name=f"My sister's name is {names[3].title()}"# List subscript from 0 Start
print(names)
print(f"{message_name}" ",she is 7 years old")Running results ：
['jack', 'andy', 'kiki', 'alicy']
My sister's name is Alicy,she is 7 years old
names=['jack','andy','kiki','alicy']# List of names
print(f" Original list :{names}")
names[0]='jack_rep'# Replace the first element
print(f" Replace the first element :{names}")
names.append('alicy_apd')# Add an element at the end
print(f" At the end of append Add an element :{names}")
names.insert(1,'jack_inst')# The first element is inserted ‘jack_inst’
print(f" First element insert Insert ‘jack_inst':{names}")
del names[1]
print(f"del Delete ‘jack_inst':{names}")
popped_name=names.pop(1)# Delete the element at the corresponding position , And back to
print(f"pop Deleted values popped_name={popped_name}")
print(f"pop Post list :{names}")
names.remove('alicy_apd')# Delete alicy_apd
print(f"remove List after operation :{names}")
print(f"sorted Temporary sort :{sorted(names,reverse=True)}")# Sort from large to small
names.sort(reverse=False)# Permanent sorting of list elements , Sort from small to large
print(f"sort Permutation :{names}")
names.reverse()
print(f" List inversion reverse:{names}")
names.reverse()
print(f" The list is inverted again reverse two :{names}")
print(f" List length （len):{len(names)}")
print(f" Through the index -1 Return to the last element :{names[-1]}")Running results ：
Original list :['jack', 'andy', 'kiki', 'alicy']
Replace the first element :['jack_rep', 'andy', 'kiki', 'alicy']
At the end of append Add an element :['jack_rep', 'andy', 'kiki', 'alicy', 'alicy_apd']
First element insert Insert ‘jack_inst':['jack_rep', 'jack_inst', 'andy', 'kiki', 'alicy', 'alicy_apd']
del Delete ‘jack_inst':['jack_rep', 'andy', 'kiki', 'alicy', 'alicy_apd']
pop Deleted values popped_name=andy
pop Post list :['jack_rep', 'kiki', 'alicy', 'alicy_apd']
remove List after operation :['jack_rep', 'kiki', 'alicy']
sorted Temporary sort :['kiki', 'jack_rep', 'alicy']
sort Permutation :['alicy', 'jack_rep', 'kiki']
List inversion reverse:['kiki', 'jack_rep', 'alicy']
The list is inverted again reverse two :['alicy', 'jack_rep', 'kiki']
List length （len):3
Through the index -1 Return to the last element :kiki
names=['jack','andy','kiki','alicy']# List of names
print(f" Original list :{names} \n adopt for Loop through list elements ：")
for name in names:
print(f"My name is {name.title()}.")Running results ：
Original list :['jack', 'andy', 'kiki', 'alicy']
adopt for Loop through list elements ：
My name is Jack.
My name is Andy.
My name is Kiki.
My name is Alicy.
(1) list Method +range
numlist=list(range(2,13,2))# Ships 2 To 13 Even number between
print(numlist)Running results ：
[2, 4, 6, 8, 10, 12]
（2） Create... Through loops
square=[]
for value in range(1,11):#1 To 11（ barring 11） loop
square.append(value**2)
print(square)Running results ：
[1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
(3) List of analytical - The first and second methods are combined
square_list=[value**2 for value in range(1,11)]
print(square_list)Running results ：
[1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
（1） extremum Sum up
numlist=list(range(2,13,2))# Ships 2 To 13 Even number between
num_max=max(numlist)
num_min=min(numlist)
num_sum=sum(numlist)
print(numlist)
print(f"max:{num_max},\nmin:{num_min},\nsum:{num_sum}")Calculation results ：
[2, 4, 6, 8, 10, 12]
max:12,
min:2,
sum:42
（2） Traverse operation
numlist_d=[]
numlist=list(range(1,11))
for num in numlist:# Traverse the list
if num%2==0:
numlist_d.append(num)
print(f"numlist by :{numlist}")
print(f"numlist The even number contained in is :{numlist_d}")Running results
numlist by :[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
numlist The even number contained in is :[2, 4, 6, 8, 10]
And list list Same operation for , The difference from a list is ：
（1） Parentheses identify
（2） Values in tuples cannot be changed
Creating a tuple ：
namelist_yz=(20,30,50)
print(f" Tuples namelist_yz：{namelist_yz}")Running results ：
Tuples namelist_yz：(20, 30, 50)
Try changing the value of the tuple ：
namelist_yz[0]=10Edit the results ：
