python的学习之路：计算

1.计算平方

def power(x, n):
    s = 1
    while n > 0:
        n = n - 1
        s = s * x
    return s

print(power(5,2))
print(power(5,3))

2.计算10以内的平方

g = (x * x for x in range(10))
for i in g:
    print(i)

3.计算绝对值

def my_abs(x):
    if x >= 0:
        return x
    else:
        return -x

print(my_abs(-9))

from def_01 import my_abs

print(my_abs(-9))