python将多行转换为单行
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python convert multiline to single line
提问by user2441441
I want to convert Python multiline string to a single line. If I open the string in a Vim , I can see ^M at the start of each line. How do I process the string to make it all in a single line with tab separation between each line. Example in Vim it looks like:
我想将 Python 多行字符串转换为单行。如果我在 Vim 中打开字符串，我可以在每一行的开头看到 ^M 。如何处理字符串以使其全部在一行中，每行之间有制表符分隔。Vim 中的示例如下所示：
Serialnumber
^MName Rick
^MAddress 902, A.street, Elsewhere
I would like it to be something like:
我希望它是这样的：
Serialnumber \t Name \t Rick \t Address \t 902, A.street,......
where each string is in one line. I tried
每个字符串都在一行中。我试过
somestring.replace(r'\r','\t')
But it doesn't work. Also, once the string is in a single line if I wanted a newline(UNIX newline?) at the end of the string how would I do that?
但它不起作用。另外，一旦字符串在一行中，如果我想在字符串末尾添加换行符（UNIX 换行符？），我该怎么做？
采纳答案by Vorticity
Deleted my previous answer because I realized it was wrong and I needed to test this solution.
删除了我之前的答案，因为我意识到这是错误的，我需要测试这个解决方案。
Assuming that you are reading this from the file, you can do the following:
假设您正在从文件中读取此内容，您可以执行以下操作：
f = open('test.txt', 'r')
lines = f.readlines()
mystr = '\t'.join([line.strip() for line in lines])
As ep0 said, the ^M represents '\r', which the carriage return character in Windows. It is surprising that you would have ^M at the beginning of each line since the windows new-line character is \r\n. Having ^M at the beginning of the line indicates that your file contains \n\r instead.
正如 ep0 所说，^M 代表 '\r'，这是 Windows 中的回车符。由于 windows 换行符是 \r\n，所以在每行的开头都有 ^M 令人惊讶。在行的开头有 ^M 表示您的文件包含 \n\r 。
Regardless, the code above makes use of a list comprehension to loop over each of the lines read from test.txt. For each linein lines, we call str.strip()to remove any whitespace and non-printing characters from the ENDS of each line. Finally, we call '\t'.join()on the resulting list to insert tabs.
无论如何，上面的代码使用列表理解来循环从test.txt. 对于每个linein lines，我们调用str.strip()从每行的 ENDS 中删除任何空格和非打印字符。最后，我们调用'\t'.join()结果列表插入选项卡。
回答by ep0
回答by Sébastien Bernery
You can replace "\r" characters by "\t".
您可以用“\t”替换“\r”字符。
my_string.replace("\r", "\t")
回答by Taohidul Islam
This trick also can be useful, write "\n"as a raw string. Like :
这招也可以是有用的，写"\n"的raw string。喜欢 ：
my_string = my_string.replace(r"\n", "\t")
回答by Madiha
it is hard coding. But it works.
这是硬编码。但它有效。
poem='''
If I can stop one heart from breaking,
I shall not live in vain;
If I can ease one life the aching,
Or cool one pain,
Or help one fainting robin
Unto his nest again,
I shall not live in vain.
'''
lst=list(poem)
str=''
for i in lst:
str+=i
print(str)
lst1=str.split("\n")
str1=""
for i in lst1:
str1+=i+" "
str2=str1[:-2]
print(str2)
