不知道为什么我在这里收到错误。我创建了文件夹' Shared Playground Data'按照指示在文件中。有没有人有任何见解?
import PlaygroundSupport
import Foundation
var fileName = "Csv.csv"
var csvText = "Date,Task,Time Started,Time Ended\n"
fileName.append(csvText)
let fileUrl = playgroundSharedDataDirectory.appendingPathComponent(fileName)
do {
try fileName.write(to: fileUrl, atomically: true, encoding: .utf8)
} catch {print("error")}
答案 0 :(得分:2)
你的代码毫无意义。为什么要将列标题附加到文件名?为什么要将fileName
的内容写入fileUrl
?
您可能需要以下内容:
let fileName = "Csv.csv"
let csvText = "Date,Task,Time Started,Time Ended\n"
let fileUrl = playgroundSharedDataDirectory.appendingPathComponent(fileName)
do {
try csvText.write(to: fileUrl, atomically: true, encoding: .utf8)
} catch {
print(error)
}
答案 1 :(得分:0)
我不知道是哪个 Xcode 引入了这个错误,但是在 Xcode 13 beta 2 上的 Playgrounds 找不到 playgroundSharedDataDirectory
目录,所以改为这样做:
let docDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
let fileName = "Csv.csv"
let outputFileUrl = docDirectory.appendingPathComponent(fileName)
let csvText = "Date,Task,Time Started,Time Ended\n"
do {
try csvText.write(to: outputFileUrl, atomically: true, encoding: .utf8)
} catch {
print (error)
}