在python中如何在不使用replace方法和使用join方法的情况下替换字符串中的子字符串？

【问题标题】：In python how to replace a substring in a string without using replace method and using join method?在python中如何在不使用replace方法和使用join方法的情况下替换字符串中的子字符串？
【发布时间】：2021-06-26 11:58:11
【问题描述】：

如何使用python中的.join方法或除replace（）以外的任何其他方法将target_string中的replace_string替换为find_string

target_string="Maybe she's born with it. Maybe it's Maybelline."
find_string = "Maybe"
replace_string = "Perhaps"
def replace_all(target_string, find_string, replace_string):


replace_all(target_string, find_string, replace_string)

【问题讨论】：

标签： python-3.x string join substring

【解决方案1】：

您可以使用str.split 和str.join。例如：

target_string = "Maybe she's born with it. Maybe it's Maybelline."
find_string = "Maybe"
replace_string = "Perhaps"


def replace_all(target_string, find_string, replace_string):
    while find_string in target_string:
        target_string = replace_string.join(target_string.split(find_string))
    return target_string


print(replace_all(target_string, find_string, replace_string))

打印：

Perhaps she's born with it. Perhaps it's Perhapslline.

【讨论】：

非常感谢 :)