swfit对字符的MD5处理

版本swift5.0,extension我最爱

import CommonCrypto

extension String {
    var md5:String {
        if let utf8 = cString(using: .utf8) {
            var digest = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
            CC_MD5(utf8, CC_LONG(utf8.count - 1), &digest)
            let result = digest.reduce("") { $0 + String(format:"%02X", $1) }
        return result
        }else{
            return self
        }
    }
}

 

来源：oschina

链接：https://my.oschina.net/wshzj/blog/4307856