/// 去除字符串中的重复字符
private func removalDuplication(str: String) -> String {
var chars = [Character]()
var set = Set<Character>()
for char in str {
if !set.contains(char) {
set.insert(char)
chars.append(char)
}
}
let result = String(chars)
return result
}
[Swift]去除字符串中的重复字符
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转载自blog.csdn.net/u012881779/article/details/130741486
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