In JavaScript you can add special characters to a text string by using the backslash sign.
使用backslash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.
(/)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(/)。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 |
/" | double quote |
/& | ampersand |
// | backslash |
/n | new line |
/r | carriage return |
/t | tab |
/b | backspace |
/f | form feed |