用一个公共子字符串连接两个字符串？

Question

说我有绳子，

string1 = 'Hello how are you'
string2 = 'are you doing now?'

结果应该是这样的

Hello how are you doing now?

我正在考虑使用re和字符串搜索的不同方式。（最长公共子串问题）

但是有没有什么简单的方法（或库）可以在 python 中做到这一点？

为了清楚起见，我将再添加一组测试字符串！

string1 = 'This is a nice ACADEMY'
string2 = 'DEMY you know!'

结果是！，

'This is a nice ACADEMY you know!'

Answer 1

这应该做：

string1 = 'Hello how are you'
string2 = 'are you doing now?'
i = 0
while not string2.startswith(string1[i:]):
    i += 1

sFinal = string1[:i] + string2

输出 ：

>>> sFinal
'Hello how are you doing now?'

或者，使其成为一个函数，以便您无需重写即可再次使用它：

def merge(s1, s2):
    i = 0
    while not s2.startswith(s1[i:]):
        i += 1
    return s1[:i] + s2

输出 ：

>>> merge('Hello how are you', 'are you doing now?')
'Hello how are you doing now?'
>>> merge("This is a nice ACADEMY", "DEMY you know!")
'This is a nice ACADEMY you know!'