java 在文本文件中写入“\n”
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/7063567/
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
Writing a "\n" in a text file
提问by DFE
I'm trying to write a string \n in a text file. But the result in the text file is a newline. I know that the \n represents a newline. But in my case, I really need to see the String \n, not the newline. How can I solve this?
我正在尝试在文本文件中写入一个字符串 \n。但是文本文件中的结果是换行符。我知道 \n 代表换行符。但就我而言，我真的需要看到字符串 \n，而不是换行符。我该如何解决这个问题？
回答by Charles Keepax
The \ character escapes the next character, as you say \n will create a newline. If you wish to output an actual \, you need to write:
\ 字符转义下一个字符，正如您所说的 \n 将创建一个换行符。如果你想输出一个实际的\，你需要写：
"\n"
That way the first slash escapes the second slash, generating an actual slash rather than escaping the n.
这样第一个斜线就可以转义第二个斜线，生成一个实际的斜线而不是转义 n。
回答by Nicola Musatti
Use "\\n". The first backslash escapes the second one and as a result one is printed to your output.
使用"\\n". 第一个反斜杠将第二个反斜杠转义，结果将一个反斜杠打印到您的输出中。
回答by berlindev
you have to escape the backslash, so double it:
你必须逃避反斜杠，所以加倍：
out("\n")
回答by Peter Lawrey
Do you mean
你的意思是
pw.print("\n"); // print \ and n
instead of
代替
pw.print("\n"); // print new line.
回答by borrible
You need to escape the \. This can be done by entering \\.
你需要逃离\. 这可以通过输入来完成\\。
回答by Sebastian Mach
What you want is to print two characters, namely \and n. According to your language's manual, to print \you must escape it. nis not among the characters you must escape. Therefore, you write \\and n, thus \\n.
你想要的是打印两个字符，即\和n。根据您的语言手册，要打印，\您必须将其转义。n不是您必须转义的字符之一。因此，你写\\和n，因此\\n。
