如何打印函数数学结果?[python函数](已编辑) [英] How do I print the results of my math of my functions? [python functions] (edited)

问题描述

我有3个不同的小程序，我不知道如何显示它们，我已经完成了数学和其他工作，除了要我拼命的帮助之外，我真的不知道该说些什么，因为我不需要我一生中有在这方面有经验的人，可以为我提供帮助.

I have 3 different small programs that I have no idea how to display them, I've done the math and stuff, I don't really know what else to say, other than I need desperate help because I don't have anyone in my life that's experienced in this subject and that can help me.

1. 此函数使用一种功能来确定是否有任何年份是a年.使您的函数返回布尔值.(Le年可被4整除，除非它们发生在新世纪初不能被400整除的年份.1900年不是a年； 2000年不是a年.)
2. 一个程序，该程序接受一条线上的两个点，并在等式y = m x + b中返回m和b的值.(m =(y1-y2)/(x1-x2)和b = y1-m x1)
一种在子程序中使用欧几里得算法的程序，以找到两个数字的最大公因数.示例:45和55的GCF为5，顺序为:55、45、10、5、0.返回GCF

编码为1.

def isLeapYear(year):
    if year % 4 == 0:
        if year % 100 == 0:
            if year % 400 == 0:
                return True
            else:
                return False
        else:
            return True
    else:
        return False

编码为2.

    rise = y2-y1
    run = x2-x1
    m = rise/run
    b = y2/(m*x2)
    return print("m = " + str(m) + " and b = " + str(b))

编码为3.

def gcf(n1,n2):

    remainder = None

    while remainder != 0:
        remainder = n1 % n2
        n1 = n2
        n2 = remainder


    return n1

对不起，我不好解释，例如，我希望the年的功能类似；输入leap年！"(存储功能)抱歉，但是(leapyeartheyented)不是a年！(或)(他们输入的跨年)是a年！

sorry im bad at explaining things, like for example, i would want the leapyear one to function like; "Enter your leap year!" (stores function) sorry, but (leapyeartheyentered) is not a leap year! (or) (leapyear they entered) is a leap year!

是的，有人说了这句话是因为我也英语不好，我想打印编码的结果

yes someone phrased it because i'm bad at english too i suppose- i want to print the results of the coding

推荐答案

对于第一个问题，请使用:

For the first question use:

y = int(input('Enter year: '))
if isLeapYear(y):
  print('%d is a leap year' % y)
else:
  print('%d is not a leap year' % y)

第二个问题:

return print("m = " + str(m) + " and b = " + str(b))

返回 None .这是因为函数 print 返回 None .用于打印.

returns None. That's because the function print returns None. It's used for printing.

您可能想要创建一个返回某些内容的函数，或者想要打印一些内容.

You probably either wanted to create a function that returns something, or you wanted to print something.

如果您需要从函数中返回两件事，请执行以下操作:

If you need to return two things from a function you do:

return m,b

然后在调用该函数的代码中:

And then in the code that called that function:

m,b = CalcMB(x1,y1,x2,y2)

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