1.基础数据类型相关操作

list

from itertools import chain

list1 = [1, 2, 3]
list2 = [4, 5, 6]
result = list1 + list2
print(result)  # 输出: [1, 2, 3, 4, 5, 6]

list1.extend(list2)
print(list1)  # 输出: [1, 2, 3, 4, 5, 6]

for item in list2:
    list1.append(item)
print(list1)  # 输出: [1, 2, 3, 4, 5, 6]

# 列表解包
result = [*list1, *list2]
print(result)  # 输出: [1, 2, 3, 4, 5, 6]

# 对于非常大的列表，使用itertool.chain借用迭代器可以提高效率
result = list(chain(list1, list2))
print(result)  # 输出: [1, 2, 3, 4, 5, 6]

2.其他

1. list comprehension

reference:https://realpython.com/list-comprehension-python/

# new_list = [expression for member in iterable if conditional]

matrix=[
		 [0,0,0],
		 [1,1,1],
		 [2,2,2]
]
# 注意先迭代行，comprehension从左至右
a = [number for row in matrix for number in row]
print(a)

2. generator

# now python3 can store a huge number only limited to the memory instead of the system architecture, the integer in python3 can grow dynamically, sys.maxsize represent the maxint in python based on the system's architecture
a=sum(number * number for number in range(1_000_000_000))

3.unpack

print(*range(0,16,8)