def countNum(param):
reslut = ""
if (param[1] + param[2]) == 0:
reslut = "除数不能为0"
else:
res = param[0] / (param[1] + param[2])
reslut = "this count: " + str(res)
print(reslut)
#logistic_regression
if __name__ == "__main__":
countNum([10, 2, 3])
book = Book(22)
print("年龄:", book.getAge())
black = Color(1, 2, 3)
print(black)
print("===== 保留关键字 =====")
print(keyword.kwlist)
print("===== 多行语句 =====")
item_one = item_two = item_three = 11
total = item_one + \
item_three + \
item_two
print(total)
print("===== 引号 =====")
