怒求Swift 版

[wxlpp]

No description provided.

[wxlpp]

这样为何不行求解

extension String {
    func tlsBase64URLDecode() -> String {
      let str = replacingOccurrences(of: "_", with: "=")
                .replacingOccurrences(of: "-", with: "/")
                .replacingOccurrences(of: "*", with: "+")
        guard let data = Data(base64Encoded: str),
              let decodeStr = String(data: data, encoding: .utf8) else {
            return str
        }
        return decodeStr
    }

    func tlsBase64URLDecode() -> String {
        guard let urlEncodeData = self.data(using: .utf8) else { return self }
        var bytes = [UInt8](urlEncodeData)
        for (index,byte) in bytes.enumerated() {
            if byte == 0x5f {
                bytes[index] = 0x3d
            }else if byte == 0x2d {
                bytes[index] = 0x2f
            }else if byte == 0x2a {
                bytes[index] = 0x2b
            }
        }
        print(String(bytes: bytes, encoding: .utf8))
        if let decodeData = Data(base64Encoded: Data(bytes: bytes)),
            let decodeStr = String(data: decodeData, encoding: .utf8) {
            return decodeStr
        }
        return self
    }