Question

我需要定义一个函数来通过字符串并替换所有替换字段，而不知道会有多少。我确实知道替换字段将被命名为特定方式。例如，如果我知道所有字段都将被命名为“名称”和“位置”：

Test1 = "I think {name} should be our {position}. Only {name} is experienced. Who else could be a {position}?"
Test2 = "{name} is the only qualified person to be our {position}."

我需要一个函数，以相同的方式处理这两个函数，并输出如下：

>>Test1 = ModString(Test1)
>>Test2 = ModString(Test2)
>>Test1
>>'I think Mary should be our boss. Only Mary is experienced. Who else could be a boss?'
>>Test2
>>'Mary is the only qualified person to be our boss.'

我觉得这应该很简单，但是我的头脑似乎无法超越倍数和未知数。

Answer 1

str.format（）我对此深有感触。

Answer 2

bphi是正确的，使用字符串格式例如

test1 = "I think {name} should be our {position}. Only {name} is experienced. Who else could be a {position}?"
test1.format(name="Bob", position="top cat")
> 'I think Bob should be our top cat. Only Bob is experienced. Who else could be a top cat?'

Answer 3

for day in array:
    price = price - (price * .1)
    print(day, price)

然后：

def ModString(s, name_replacement, position_replacement):
    return s.replace("{name}",name_replacement).replace("{position}", position_replacement)

或者您可以只使用Test1 = ModString(Test1, "Mary", "boss") Test2 = ModString(Test2, "Mary", "boss")，推荐

.format()

Answer 4

您必须使用replace（）方法，例如，在这里阅读：https://www.tutorialspoint.com/python/string_replace.htm

Test1 = "I think {name} should be our {position}. Only {name} is experienced. Who else could be a {position}?"
Test2 = "{name} is the only qualified person to be our {position}."

def ModString(str, name, position):
    str = str.replace("{name}", name)
    str = str.replace("{position}", position)
    return str
Test1 = replaceWord(Test1, "Mary", "boss")
Test2 = replaceWord(Test2, "Mary", "boss")

Python：替换未知数量的字符串变量

4 个答案: