如何在java中的字符串中打印\n
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How to print \n in a String in java
提问by Saeed ur Rehman
I want to print \n.
我想打印\n。
String text = "";
text = "\n is used for new line";
but the \n is not showing when I run the code. How to do this?
但是当我运行代码时没有显示 \n 。这该怎么做？
回答by rajuGT
Escape the \with \
逃避\与\
text = "\n is used for new line";
回答by Kvam
If you want to actually write the two chars \and nto output, you need to escape the backslash: \\n.
如果要实际写入两个字符\并n输出，则需要转义反斜杠：\\n。
All escape sequences are listed in the documentation: https://docs.oracle.com/javase/tutorial/java/data/characters.html
文档中列出了所有转义序列：https: //docs.oracle.com/javase/tutorial/java/data/characters.html
回答by Andy Guibert
In java, the \char is an escape character, meaning that the following char is some sort of control character (such as \n \t or \r).
在java中，\char是转义字符，意思是后面的char是某种控制字符（比如\n\t或\r）。
To print literals in Java escape it with an additional \char
要在 Java 中打印文字，请使用附加\字符对其进行转义
Such as:
如：
String text = "\n is used for a new line";
System.out.println(text);
Will print:
将打印：
\n is used for a new line
\n 用于换行
回答by Mohammed Aouf Zouag
You can also use System.lineSeparator(), introduced in Java 8:
您还可以使用System.lineSeparator()在Java 8 中引入的：
String result = "cat" + System.lineSeparator() + "dog";
System.out.print(result);
Output:
输出：
cat
dog
