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Question

我有一个字符串，例如：

String = "This is first sentence, sentence one. This is second sentence, sentence two`."

我想用列表中的另一个词来代替“句子”

my_list = ['1', 'me1', '2', 'me2']

所以它会变成：

"This is first 1, me1 one. This is second 2, me2 two."

有什么想法吗

Answer 1

使用regex.sub(repl, string, count=0)函数和自定义replace_substring函数作为替换回调的解决方案：

def replace_substring(m):
    if replace_substring.counter == len(my_list):
        replace_substring.counter = 0

    replaced = my_list[replace_substring.counter]
    replace_substring.counter += 1
    return replaced

replace_substring.counter = 0

String = "This is first sentence, sentence one. This is second sentence, sentence two`."
my_list = ['1', 'me1', '2', 'me2']
pattern = re.compile(r'\bsentence\b')

result = pattern.sub(replace_substring, String)
print(result)

输出：

This is first 1, me1 one. This is second 2, me2 two`.

https://docs.python.org/3/library/re.html#re.regex.sub

Answer 2

String = "This is first sentence, sentence one. This is second sentence, sentence two`."
String1 = String
my_list = ['1', 'me1', '2', 'me2']

for i in range(len(my_list)):
    String1=String1.replace("sentence",my_list[i],1)
    print i, my_list[i]
print String1

输出：

'This is first 1, me1 one. This is second 2, me2 two`.'