为什么我的代码不返回任何内容

问题描述

目前对编程和尝试学习 Python 还很陌生.我有这个代码，但我不明白为什么我没有得到返回值:(

fairly new to programming and trying to learn Python at the moment. I have this code and I don't understand why I don't get a return value :(

balance = 3200
annualInterestRate = 0.2
monthlyInterestRate = (annualInterestRate/12 + 1)


def f(x):
    m = 0
    ba = balance
    while m < 12:
        ba = (ba - x)*monthlyInterestRate
        m += 1
    return ba

def bisection():
    a = 0
    b = balance
    c = (a+b)/2
    while a != b:
        if f(c) == 0:
            return c
        elif f(c) < 0:
            a = c
        else:
            b = c

        c = (a+b)/2

    return c



bisection()

推荐答案

您必须明确使用 return 关键字.可能是你目前有 print c 的地方.

You have to explicitly use the return keyword. Probably where you currently have print c.

f 需要在while循环后返回ba.

f needs to return ba after the while loop.

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