您可以使用NSAttributedString将这些HTML实体转换为字符串.
let htmlString = "test北京的test"
if let htmldata = htmlString.dataUsingEncoding(NSUTF8StringEncoding), let attributedString = try? NSAttributedString(data: htmldata, options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil) {
let finalString = attributedString.string
print(finalString)
//output: test???test
}
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