python - 如何替换参数给定的字符串中的特定元素

Question

我想做的是遍历一个字符串，选择一个名称和一个当前在字符串中的职位，然后它会找到职位所在的行，然后将当前名称替换为在参数中选择的新名称。

这是我的字符串:

TV = '''
Tulleveien Velforening
leder: Kari
kasserer: Ole
IT-ansvarlig: Liv
parkeringsansvarlig: Kari
arrangementsansvarlig: Liv
hagekonsulent: Kari
brannansvarlig: Kari
'''

然后这是我试图运行以实际执行它的函数:

def Verv(navn, vervs):
    print("Tulleveien Velforening")
    for lines in TV.split("\n"):
        lines.replace(navn, lines)
        return TV

这是我尝试过的:

Verv('Roald', ["leder", "IT-ansvarlig"])

但是当我运行该程序时，我得到的只是它开始时的列表。预期的输出是:

Tulleveien Velforening
leder: Roald
kasserer: Ole
IT-ansvarlig: Roald
parkeringsansvarlig: Kari
arrangementsansvarlig: Liv
hagekonsulent: Kari
brannansvarlig: Kari

我该如何解决这个问题？

Answer 1

试试这个，我添加了一些应该解释逻辑的内联注释。

TV = '''
Tulleveien Velforening
leder: Kari
kasserer: Ole
IT-ansvarlig: Liv
parkeringsansvarlig: Kari
arrangementsansvarlig: Liv
hagekonsulent: Kari
brannansvarlig: Kari
'''


def Verv(navn, verv):
    # Created an empty dictionary to convert the lines into a dictionary which is much easier to manage.
    rin_dict = {}
    print("Tulleveien Velforening")
    # Forming a dictionary out of your string.
    for line in TV.split("\n"):
        if ":" in line:
            rin = line.split(": ")
            rin_dict[rin[0]] = rin[1]
    # Dictionary key replacement.
    for elm in verv:
        rin_dict[elm] = navn
    # Printing back the dictionary in your desired format.
    for k, v in rin_dict.items():
        print("{0}: {1}".format(k, v))


# The second argument is a list.
Verv('Roald', ["leder", "IT-ansvarlig"])