Python 列表到字符串的转换
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Python List to String Conversion
提问by smada
This seems like a simple task and I'm not sure if I've accomplished it already, or if I'm chasing my tail.
这似乎是一项简单的任务，我不确定我是否已经完成，或者我是否在追赶我的尾巴。
values = [value.replace('-','') for value in values] ## strips out hyphen (only 1)
print values ## outputs ['0160840020']
parcelID = str(values) ## convert to string
print parcelID ##outputs ['0160840020']
url = 'Detail.aspx?RE='+ parcelID ## outputs Detail.aspx?RE=['0160840020']
As you can see I'm trying to append the number attached to the end of the URL in order to change the page via a POST parameter. My question is how do I strip the [' prefix and '] suffix? I've already tried parcelID.strip("['") with no luck. Am I doing this correctly?
如您所见，我正在尝试将附加到 URL 末尾的数字附加到通过 POST 参数更改页面。我的问题是如何去除 [' 前缀和 '] 后缀？我已经尝试过 parcelID.strip("['") 没有运气。我这样做正确吗？
采纳答案by David Robinson
valuesis a list (of length 1), which is why it appears in brackets. If you want to get just the ID, do:
values是一个列表（长度为 1），这就是它出现在括号中的原因。如果您只想获取 ID，请执行以下操作：
parcelID = values[0]
Instead of
代替
parcelID = str(values)
回答by Paul Seeb
Assuming you actually have a list of values when you perform this (and not just one item) this would solve you problem (it would also work for one item as you have shown)
假设您在执行此操作时实际上有一个值列表（而不仅仅是一项），这将解决您的问题（它也适用于您所展示的一项）
values = [value.replace('-','') for value in values] ## strips out hyphen (only 1)
# create a list of urls from the parcelIDs
urls = ['Detail.aspx?RE='+ str(parcelID) for parcelID in values]
# use each url one at a time
for url in urls:
# do whatever you need to do with each URL
