Swift替换字符串中的多个字符 [英] Swift Replace Multiple Characters in String

问题描述

下面是我用来用回车符替换HTML break标记的以下代码行。但是，我还需要替换其他HTML符号，当我再次调用这行代码时，使用不同的参数，就像第一个被覆盖一样。有没有办法可以包含多个参数？在Swift中有更有效的方法吗？例如：将br>替换为，将nbsp替换为。

Below is the following line of code I use to replace an HTML break tag with a carriage return. However, I have other HTML symbols that I need to replace and when I call this line of code again, with different parameters, it's as if the first one is overwritten. Is there a way I can include multiple parameters? Is there a more efficient way to do this in Swift? For example: replace both br> with "" and nbsp with "".

textView.text = content.stringByReplacingOccurrencesOfString("<br /><br />", withString:"\r")

推荐答案

使用 replacementOccurrences 以及 String.CompareOptions.regularExpresion 选项。

示例（Swift 3）：

Example (Swift 3):

var x = "<Hello, [play^ground+]>"
let y = x.replacingOccurrences(of: "[\\[\\]^+<>]", with: "7", options: .regularExpression, range: nil)
print(y)

输入要在方括号内替换的字符，如此[ \\字符]

Input characters which are to be replaced inside the square brackets like so [\\ Characters]

输出：

7Hello, 7play7ground777

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