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JS 特殊字符 
In JavaScript you can add special characters to a text string by using the backslash sign.
使用backslash( \ 反斜杠)标记你可以在JS中添加特殊文字。
Insert Special Characters
插入特殊文字
The backslash () is used to insert apostrophes, new lines, quotes, and other special characters into a text string.
(\ 反斜杠)被用来插入省略符号，新的行，引用和其他插入在字符串中的特殊文字。
Look at the following JavaScript code:
请看下面的JS代码：
var txt="We are the so-called "Vikings" from the north." |
In JavaScript, a string is started and stopped with either single or double quotes. This means that the string above will be chopped to: We are the so-called
在JS中，一字符串可以用单引号或是双引号来开始和结束。这就意味着上面的字符串将被切成：We are the so-called
To solve this problem, you must place a backslash (\) before each double quote in "Viking". This turns each double quote into a string literal:
要解决这个问题，你必须在"Viking"的每个双引号前放置一个\ (反斜杠)。这样就能在字符串中正确返回每个双引号了：
var txt="We are the so-called "Vikings" from the north." |
JavasScript will now output the proper text string: We are the so-called "Vikings" from the north.
现在JS就能输出合适的文字了： We are the so-called "Vikings" from the north.
Here is another example:
这是另外一个例子：
document.write ("You & me are singing!")
|
The example above will produce the following output:
上面的例子会输出下面的内容：
You & me are singing! |
The table below lists other special characters that can be added to a text string with the backslash sign:
下面的表格罗列了其他一些特殊文字：
| Code 代码 |
Outputs 输出结果 |
|---|---|
| \' | single quote 单引号 |
| \" | double quote 双引号 |
| \& | ampersand &符号 |
| \\ | backslash 反斜杠 |
| \n | new line 换行符 |
| \r | carriage return 回车符 |
| \t | tab 制表符 |
| \b | backspace 退格符 |
| \f | form feed 分页符 |
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