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➤微信公众号:山青咏芝(shanqingyongzhi)
➤博客园地址:山青咏芝(https://www.cnblogs.com/strengthen/ )
➤GitHub地址:https://github.com/strengthen/LeetCode
➤原文地址:https://www.cnblogs.com/strengthen/p/10670482.html
➤如果链接不是山青咏芝的博客园地址,则可能是爬取作者的文章。
➤原文已修改更新!强烈建议点击原文地址阅读!支持作者!支持原创!
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扩展方式1:
1 extension String {
2 //Base64编码
3 func encodBase64() -> String? {
4 if let data = self.data(using: .utf8) {
5 return data.base64EncodedString()
6 }
7 return nil
8 }
9
10 //Base64解码
11 func decodeBase64() -> String? {
12 if let data = Data(base64Encoded: self) {
13 return String(data: data, encoding: .utf8)
14 }
15 return nil
16 }
17 }
扩展方式2:
1 extension String {
2 //Base64编码
3 func encodBase64() -> String?
4 {
5 let strData = self.data(using: String.Encoding.utf8)
6 let base64String = strData?.base64EncodedString(options: NSData.Base64EncodingOptions.init(rawValue: 0))
7 return base64String
8 }
9
10 //Base64解码
11 func decodeBase64() -> String?
12 {
13 let decodedData = NSData(base64Encoded: self, options: NSData.Base64DecodingOptions.init(rawValue: 0))
14 let decodedString = NSString(data: decodedData! as Data, encoding: String.Encoding.utf8.rawValue) as String?
15 return decodedString
16 }
17 }
测试代码:
1 var str:String = "Strengthen"
2 let strBase64:String = str.encodBase64()!
3 print(strBase64)
4 //Print U3RyZW5ndGhlbg==
5
6 print(strBase64.decodeBase64())
7 //Print Optional("Strengthen")
转载于:https://www.cnblogs.com/strengthen/p/10670482.html