Python解压可迭代对象赋值给多个变量详解

p = [4, 5]
x, y = p
print(x, y)
# 输出结果：4 5
data = ['Test', 1, 3.14, (2021, 12, 1)]
a, b, c, d = data
print(a, b, c, d)
# 输出结果：Test 1 3.14 (2021, 12, 1)
a, b, c, (year, month, day) = data
print(a, b, c, year, month, day)
# 输出结果：Test 1 3.14 2021 12 1

data = [1, 2, 3, 4, 5]
a, b, *c, d = data
print(a, b, c, d)
# 输出结果：1 2 [3, 4] 5

s = 'hello'
a, b, c, d, e = s
print(a, b, c, d, e)

record = ('ACME', 50, 123.45, (12, 18, 2012))
name, *_, (*_, year) = record
print(name, year)

records = [
	('foo', 1, 2),
	('bar', 'hello'),
	('foo', 3, 4),
]

def print_foo(x, y):
	print('foo', x, y)

def print_bar(s):
	print('bar', s)

for tag, *args in records:
	if tag == 'foo':
		print_foo(*args)
	elif tag == 'bar':
		print_bar(*args)

line = 'nobody:*:-2:-2:Unprivileged User:/var/empty:/usr/bin/false'
uname, *field, homedir, sh = line.split(':')
print(uname, homedir, sh)