def power(number, pow=1):
"""Raise number to the power of pow."""
new_value = number ** pow
return new_value
power(9, 2)
81
power(9)
9
가변 인자: *args (1)
def add_all(*args):
"""Sum all values in *args together."""
# Initialize sum
sum_all = 0
# Accumulate the sum
for num in args:
sum_all = sum_all + num
return sum_all
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