我怎样才能在这种CSV文件中使用数据?或者我如何打印“内部”列的第2行值并将其分配给属性/实体?
我有这种从excel文件转换为Numbers的文件,我想抓取每列的数据并使用它们.
原始CSV文件以数字打开:
我得到的控制台输出:
使用这种方法:
func readDataFromCSV(fileName:String,fileType: String)-> String!{ guard let filepath = Bundle.main.path(forResource: fileName,ofType: fileType) else { return nil } do { var contents = try String(contentsOfFile: filepath,encoding: .utf8) contents = cleanRows(file: contents) return contents } catch { print("File Read Error for file \(filepath)") return nil } } func cleanRows(file:String)->String{ var cleanFile = file cleanFile = cleanFile.replacingOccurrences(of: "\r",with: "\n") cleanFile = cleanFile.replacingOccurrences(of: "\n\n",with: "\n") // cleanFile = cleanFile.replacingOccurrences(of: ";;",with: "") // cleanFile = cleanFile.replacingOccurrences(of: ";\n",with: "") return cleanFile }
解决方案感谢Jens Meder
运用
func csv(data: String) -> [[String]] { var result: [[String]] = [] let rows = data.components(separatedBy: "\n") for row in rows { let columns = row.components(separatedBy: ";") result.append(columns) } return result }
在viewDidLoad中
var data = readDataFromCSV(fileName: kCSVFileName,fileType: kCSVFileExtension) data = cleanRows(file: data!) let csvRows = csv(data: data!) print(csvRows[1][1]) // UXM n. 166/167
你想要做的是将字符串分成行然后分成列(基本上是字符串的二维数组). Swift已经为String结构提供了
原文链接:https://www.f2er.com/swift/320185.htmlcomponents
方法.
func csv(data: String) -> [[String]] { var result: [[String]] = [] let rows = data.components(separatedBy: "\n") for row in rows { let columns = row.components(separatedBy: ";") result.append(columns) } return result }
然后您可以通过以下方式访问任何值
var data = readDataFromCSV(fileName: kCSVFileName,fileType: kCSVFileExtension) data = cleanRows(file: data) let csvRows = csv(data: data) print(csvRows[1][1]) //UXM n. 166/167.