用字符串替换整数区间

Question

我想用数据中test的字符串替换 100 到 200 之间的所有整数。以下是一些控制案例：

`this is a control 150` = `this is a control test`
`this is a control 160` = `this is a control test`
`this is a control 150000` = `this is a control 150000`

我的想法是使用正则表达式，我有以下内容：re.sub("d", "test", "this is a control 150")

但是，这会将所有整数替换为test。有没有办法将其限制为仅替换 100-200？

Answer 1

使用re.search

演示：

import re
s = ["this is a control 150", "this is a control 160", "this is a control 160.05", "this is a control 150000"]
for i in s:
m = re.search("d+.?d*", i)
if m:
if 100 < float(m.group()) < 200:
print(i.replace(m.group(0), "test"))
else:
print(i)

输出：

this is a control test
this is a control test
this is a control test
this is a control 150000

Answer 2

如果你的字符串这么简单，你可能要考虑拆分它们，解析一个整数，比较和替换。

for line in your_lines:
num = int(line.split("control ")[1])
if num > 100 and num < 200:
line.replace(str(num), 'test')