如何使用python正则表达式在括号中为数字添加标记？

Question

默认字符串为：

strings123[abc123def456]strings456

为数字添加标记：

strings[abc<span>123</span>def<span>456</span>]strings

Answer 1

按此搜索：

(\d+)

并替换为：

<span>\1</span>

Regex Demo

示例来源：

import re
regex = r"(\d+)"
test_str = "strings[abc123def456]strings"
subst = "<span>\\1</span>"
result = re.sub(regex, subst, test_str, 0)
if result:
    print (result)