iOS/swift之path、url、data 、String与Data之间的转换

1.**************从path中获取数据************

let path=Bundle.main.path(forResource: "shengshiquxianarea.plist", ofType: nil)
        let proviceDataArr:NSArray = NSArray(contentsOfFile:path!)!

2.String与data互转

 let heartRate: NSString = "ZhuHai XY"
                let dataValue: Data = heartRate.data(using: String.Encoding.utf8.rawValue, allowLossyConversion: true)! as Data//字符串转data


                let dat:String = String(data: dataValue as Data, encoding: String.Encoding.utf8)!//data转字符串