file.swift

let fileMang = FileManager.default
       var filePath = NSHomeDirectory()
       do {
           let appSupportDir = try FileManager.default.url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
           filePath = appSupportDir.appendingPathComponent("points.txt").path
       }
       catch{}
       print(filePath)
       if fileMang.fileExists(atPath: filePath) {
           do {
               try fileMang.removeItem(atPath: filePath)
           }
           catch {}
       }
       let test = fileMang.createFile(atPath: filePath, contents: "0, 0, 0".data(using: String.Encoding.utf8), attributes: nil)
       print(test)