深入分析Python中Lambda函数的用法_python

gAll = 10
if __name__ == '__main__':
    count = 2
    result = map(lambda x: x * count + gAll, range(10))
    print(list(result))
# [10, 12, 14, 16, 18, 20, 22, 24, 26, 28]

result = []
for i in range(10):
    result.append((lambda x: x * 2 if x % 2 == 0 else x)(i))
print(result)
# [0, 1, 4, 3, 8, 5, 12, 7, 16, 9]

result = []
for i in range(10):
    # result.append((lambda: print("lambda:", i)))  # 全部是9
    result.append((lambda i=i: print("lambda:", i)))
for f in result:
    f()

def powMulti(n):
    return lambda x: x**n
if __name__ == '__main__':
    p = powMulti(2)
    for i in range(10):
        print(p(i))

src = [random.randint(0, 100) for _ in range(10)]
print(src)
dest = sorted(src)
print(dest)
ret = functools.reduce(lambda x, y: x + y, range(10), 10)
print(ret)  # 55