如何在 Python 中打印不带括号的元组列表
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/19112735/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to print a list of tuples with no brackets in Python
提问by Boosted_d16
I'm looking for a way to print elements from a tuple with no brackets.
我正在寻找一种从没有括号的元组中打印元素的方法。
Here is my tuple:
这是我的元组：
mytuple = [(1.0,),(25.34,),(2.4,),(7.4,)]
I converted this to a list to make it easier to work with
我将其转换为列表以使其更易于使用
mylist = list(mytuple)
Then I did the following
然后我做了以下
for item in mylist:
print(item.strip())
But I get the following error
但我收到以下错误
AttributeError: 'tuple' object has no attribute 'strip'
Which is strange because I thought I converted to a list?
这很奇怪，因为我以为我已转换为列表？
What I expect to see as the final result is something like:
我希望看到的最终结果是这样的：
1.0,
25.34,
2.4,
7.4
or
或者
1.0, ,23.43, ,2.4, ,7.4
采纳答案by TerryA
mytupleis already a list (a list of tuples), so calling list()on it does nothing.
mytuple已经是一个列表（元组列表），因此调用list()它没有任何作用。
(1.0,)is a tuple with one item. You can't call string functions on it (like you tried). They're for string types.
(1.0,)是一个包含一项的元组。你不能在它上面调用字符串函数（就像你试过的那样）。它们用于字符串类型。
To print each item in your list of tuples, just do:
要打印元组列表中的每个项目，只需执行以下操作：
for item in mytuple:
print str(item[0]) + ','
Or:
或者：
print ', ,'.join([str(i[0]) for i in mytuple])
# 1.0, ,25.34, ,2.4, ,7.4
回答by Bertrand Ptheitroadot
You can do it like this as well:
你也可以这样做：
mytuple = (1,2,3)
print str(mytuple)[1:-1]
回答by Liron Lavi
I iterate through the list tuples, than I iterate through the 'items' of the tuples.
我遍历列表元组，而不是遍历元组的“项目”。
my_tuple_list = [(1.0,),(25.34,),(2.4,),(7.4,)]
for a_tuple in my_tuple_list: # iterates through each tuple
for item in a_tuple: # iterates through each tuple items
print item
result:
结果：
1.0
25.34
2.4
7.4
to get exactly the result you mentioned above you can always add
要获得您上面提到的准确结果，您可以随时添加
print item + ','
回答by SmartManoj
mytuple = [(1.0,),(25.34,),(2.4,),(7.4,)]
for item in mytuple:
print(*item) # *==> unpacking
