1.对加减乘除分别封装一个函数进行计算,参数是两个数,返回值是计算结果
def add(x, y):
"""
:param x:
:param y:
:return:返回结果
"""
print(x + y)
return
add(3,4)
def sub(x, y):
"""
:param x:
:param y:
:return:返回结果
"""
print(x - y)
return
sub(3,4)
def mul(x, y):
"""
:param x:
:param y:
:return:返回结果
"""
print(x * y)
return
mul(3,4)
def div(x, y):
"""
:param x:
:param y:
:return:返回结果
"""
print(x / y)
return
div(3,4)