IOS Swift 在某路徑下產生檔案 txt json

語法：

   

    func createFile(name:String, fileBaseUrl:URL){

            let manager = FileManager.default

            

            let file = fileBaseUrl.appendingPathComponent(name)

            print("文件: \(file)")

            let exist = manager.fileExists(atPath: file.path)

            if !exist {

                let data = Data(base64Encoded:"aGVsbG8gd29ybGQ=" ,options:.ignoreUnknownCharacters)

                let createSuccess = manager.createFile(atPath: file.path,contents:data,attributes:nil)

                print("文件產生结果: \(createSuccess)")

            }

        }

        

        //新建test.txt文件

        let manager = FileManager.default

        let urlForDocument = manager.urls( for: .documentDirectory,

                                           in:.userDomainMask)

        let url = urlForDocument[0]

        createFile(name: "projects/new1.txt", fileBaseUrl: url)