我需要从一个字母数字字符串中挑选出所有两个数字数字。
例如: < code> input = abc123# d$45_abrt&89*
output = [45、89]
当我这样做时,它会从三个数字中取出两个数字,甚至从三个数字中取出两个数字。
数字可以是字符串中的任意位置 - 开始、 中间或结束。 另外, 锚可以是任何东西( 当然, 数字除外 ) 。
请建议使用正则或使用其他字符串操作是否更好 。
如果提供 Python 代码, 将会很有帮助 。
我需要从一个字母数字字符串中挑选出所有两个数字数字。
例如: < code> input = abc123# d$45_abrt&89*
output = [45、89]
当我这样做时,它会从三个数字中取出两个数字,甚至从三个数字中取出两个数字。
数字可以是字符串中的任意位置 - 开始、 中间或结束。 另外, 锚可以是任何东西( 当然, 数字除外 ) 。
请建议使用正则或使用其他字符串操作是否更好 。
如果提供 Python 代码, 将会很有帮助 。
您需要 < a href=>" "http://www. regular- expressions.info/ looking around.html" rel = “ no follow” > 查看以下说法 :
>>> re.findall(r"(?<!d)dd(?!d)", "abc123#d$45^abrt&89*")
[ 45 , 89 ]
Is there a way to force Django models to pass a field to a MySQL function every time the model data is read or loaded? To clarify what I mean in SQL, I want the Django model to produce something like ...
I am looking for an enterprise tasks scheduler for python, like quartz is for Java. Requirements: Persistent: if the process restarts or the machine restarts, then all the jobs must stay there and ...
Given the following list that contains some duplicate and some unique dictionaries, what is the best method to remove unique dictionaries first, then reduce the duplicate dictionaries to single ...
Simple enough question: I m using python random module to generate random integers. I want to know what is the suggested value to use with the random.seed() function? Currently I am letting this ...
I m using PyDev under Eclipse to write some Jython code. I ve got numerous instances where I need to do something like this: import com.work.project.component.client.Interface.ISubInterface as ...
Python s paster serve app.ini is taking longer than I would like to be ready for the first request. I know how to profile requests with middleware, but how do I profile the initialization time? I ...
Our business currently has an online store and recently we ve been offering free specials to our customers. Right now, we simply display the special and give the buyer a notice stating we will add the ...
I m trying to convert a Python dictionary into a Python list, in order to perform some calculations. #My dictionary dict = {} dict[ Capital ]="London" dict[ Food ]="Fish&Chips" dict[ 2012 ]="...