(Swift)如何在字符串中打印"\"字符？

Question

我试图打印它,但它只是通过,因为它是一个逃脱的角色.例如,输出应如下.

\correct

提前致谢

Answer 1

为了这个以及将来的参考:

\0 – Null character (that is a zero after the slash)
\\ – Backslash itself.  Since the backslash is used to escape other characters, it needs a special escape to actually print itself.
\t  – Horizontal tab
\n – Line Feed
\r  – Carriage Return
\”  – Double quote.  Since the quotes denote a String literal, this is necessary if you actually want to print one.
\’  – Single Quote.  Similar reason to above.

Answer 2

var s1: String = "I love my "
 let s2: String = "country"
   s1 += "\"\(s2)\""
   print(s1)

它将打印我爱我的“国家”

Answer 3

反斜杠字符\在字符串中使用时充当转义字符。这意味着您可以在字符串中使用双引号，只需在它们前面加上\. 这同样适用于反斜杠字符本身，也就是说，这println("\\")将导致仅\被打印。

Answer 4

将以下代码用于Swift 5，Xcode 10.2

let myText = #"This is a Backslash: \"#
print(myText)

输出：

这是一个反斜杠：

现在不需要在swift 5中添加双斜杠以在单字符中使用单斜杠，甚至现在在某些字符（例如单引号，双引号等）之前也需要斜杠。

查看此帖子以获取有关swift 5的最新更新

https://www.hackingwithswift.com/articles/126/whats-new-in-swift-5-0