{"id":571,"date":"2023-02-25T19:14:18","date_gmt":"2023-02-25T11:14:18","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=571"},"modified":"2023-04-29T20:33:31","modified_gmt":"2023-04-29T12:33:31","slug":"swift-complete-collection-of-file-and-folder-operations","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/02\/25\/swift-complete-collection-of-file-and-folder-operations\/","title":{"rendered":"Swift – \u6587\u4ef6\u53ca\u6587\u4ef6\u5939\u64cd\u4f5c\u5927\u5168"},"content":{"rendered":"
\n

\u6ce8\uff1a\u4ee3\u7801\u5df2\u5347\u7ea7\u81f3Swift4<\/p>\n<\/blockquote>\n

iOS\u5f00\u53d1\u7ecf\u5e38\u4f1a\u9047\u5230\u8bfb\u6587\u4ef6\uff0c\u5199\u6587\u4ef6\u7b49\uff0c\u5bf9\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u7684\u64cd\u4f5c\uff0c\u8fd9\u65f6\u5c31\u53ef\u4ee5\u4f7f\u7528FileManager\uff0cFileHandle\u7b49\u7c7b\u6765\u5b9e\u73b0\u3002<\/p>\n

<\/p>\n

\u904d\u5386\u4e00\u4e2a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6<\/h3>\n

\u5047\u8bbe\u7528\u6237\u6587\u6863\u4e0b\u6709\u5982\u4e0b\u6587\u4ef6\u548c\u6587\u4ef6\u5939\uff1atest1.txt\u3001fold1\/test2.txt<\/p>\n

\uff081\uff09\u9996\u5148\u6211\u4eec\u83b7\u53d6\u7528\u6237\u6587\u6863\u76ee\u5f55\u8def\u5f84<\/p>\n

let manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in: .userDomainMask)\nlet url = urlForDocument[0] as URL\nprint(url)<\/code><\/pre>\n
\uff082\uff09\u5bf9\u6307\u5b9a\u8def\u5f84\u6267\u884c\u6d45\u641c\u7d22\uff0c\u8fd4\u56de\u6307\u5b9a\u76ee\u5f55\u8def\u5f84\u4e0b\u7684\u6587\u4ef6\u3001\u5b50\u76ee\u5f55\u53ca\u7b26\u53f7\u94fe\u63a5\u7684\u5217\u8868<\/p>\n
let contentsOfPath = try? manager.contentsOfDirectory(atPath: url.path)\nprint("contentsOfPath: \\(contentsOfPath)")<\/code><\/pre>\n
\uff083\uff09\u7c7b\u4f3c\u4e0a\u9762\u7684\uff0c\u5bf9\u6307\u5b9a\u8def\u5f84\u6267\u884c\u6d45\u641c\u7d22\uff0c\u8fd4\u56de\u6307\u5b9a\u76ee\u5f55\u8def\u5f84\u4e0b\u7684\u6587\u4ef6\u3001\u5b50\u76ee\u5f55\u53ca\u7b26\u53f7\u94fe\u63a5\u7684\u5217\u8868<\/p>\n
let contentsOfURL = try? manager.contentsOfDirectory(at: url,\n                        includingPropertiesForKeys: nil, options: .skipsHiddenFiles)\nprint("contentsOfURL: \\(contentsOfURL)")<\/code><\/pre>\n
\uff084\uff09\u6df1\u5ea6\u904d\u5386\uff0c\u4f1a\u9012\u5f52\u904d\u5386\u5b50\u6587\u4ef6\u5939\uff08\u4f46\u4e0d\u4f1a\u9012\u5f52\u7b26\u53f7\u94fe\u63a5\uff09<\/p>\n
let enumeratorAtPath = manager.enumerator(atPath: url.path)\nprint("enumeratorAtPath: \\(enumeratorAtPath?.allObjects)")<\/code><\/pre>\n
\uff085\uff09\u7c7b\u4f3c\u4e0a\u9762\u7684\uff0c\u6df1\u5ea6\u904d\u5386\uff0c\u4f1a\u9012\u5f52\u904d\u5386\u5b50\u6587\u4ef6\u5939\uff08\u4f46\u4e0d\u4f1a\u9012\u5f52\u7b26\u53f7\u94fe\u63a5\uff09<\/p>\n
let enumeratorAtURL = manager.enumerator(at: url, includingPropertiesForKeys: nil,\n                                         options: .skipsHiddenFiles, errorHandler:nil)\nprint("enumeratorAtURL: \\(enumeratorAtURL?.allObjects)")<\/code><\/pre>\n
\uff086\uff09\u6df1\u5ea6\u904d\u5386\uff0c\u4f1a\u9012\u5f52\u904d\u5386\u5b50\u6587\u4ef6\u5939\uff08\u5305\u62ec\u7b26\u53f7\u94fe\u63a5\uff0c\u6240\u4ee5\u8981\u6c42\u6027\u80fd\u7684\u8bdd\u7528enumeratorAtPath\uff09<\/p>\n
let subPaths = manager.subpaths(atPath: url.path)\nprint("subPaths: \\(subPaths)")<\/code><\/pre>\n
\u5224\u65ad\u6587\u4ef6\u6216\u6587\u4ef6\u5939\u662f\u5426\u5b58\u5728<\/h3>\n
let fileManager = FileManager.default\nlet filePath:String = NSHomeDirectory() + "\/Documents\/appblog.txt"\nlet exist = fileManager.fileExists(atPath: filePath)<\/code><\/pre>\n
\u521b\u5efa\u6587\u4ef6\u5939<\/h3>\n
\u65b9\u5f0f1\uff1a<\/p>\n
let myDirectory:String = NSHomeDirectory() + "\/Documents\/myFolder\/Files"\nlet fileManager = FileManager.default\n\n\/\/withIntermediateDirectories\u4e3ature\u8868\u793a\u8def\u5f84\u4e2d\u95f4\u5982\u679c\u6709\u4e0d\u5b58\u5728\u7684\u6587\u4ef6\u5939\u90fd\u4f1a\u521b\u5efa\ntry! fileManager.createDirectory(atPath: myDirectory,\n                        withIntermediateDirectories: true, attributes: nil)<\/code><\/pre>\n
\u65b9\u5f0f2\uff1a<\/p>\n
func createFolder(name:String,baseUrl:NSURL) {\n    let manager = FileManager.default\n    let folder = baseUrl.appendingPathComponent(name, isDirectory: true)\n    print("\u6587\u4ef6\u5939: \\(folder)")\n    let exist = manager.fileExists(atPath: folder!.path)\n    if !exist {\n        try! manager.createDirectory(at: folder!, withIntermediateDirectories: true,\n                                    attributes: nil)\n    }\n}\n\n\/\/\u5728\u6587\u6863\u76ee\u5f55\u4e0b\u65b0\u5efafolder\u76ee\u5f55\nlet manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in: .userDomainMask)\nlet url = urlForDocument[0] as NSURL\ncreateFolder(name: "folder", baseUrl: url)<\/code><\/pre>\n
\u5c06\u5bf9\u8c61\u5199\u5165\u6587\u4ef6<\/h3>\n
\u53ef\u4ee5\u901a\u8fc7write(to:)\u65b9\u6cd5\uff0c\u53ef\u4ee5\u521b\u5efa\u6587\u4ef6\u5e76\u5c06\u5bf9\u8c61\u5199\u5165\uff0c\u5bf9\u8c61\u5305\u62ecString\uff0cNSString\uff0cUIImage\uff0cNSArray\uff0cNSDictionary\u7b49\u3002<\/p>\n
\uff081\uff09\u628aString\u4fdd\u5b58\u5230\u6587\u4ef6<\/p>\n
let filePath:String = NSHomeDirectory() + "\/Documents\/appblog.txt"\nlet info = "\u6b22\u8fce\u6765\u5230AppBlog.CN"\ntry! info.write(toFile: filePath, atomically: true, encoding: String.Encoding.utf8)<\/code><\/pre>\n
\uff082\uff09\u628a\u56fe\u7247\u4fdd\u5b58\u5230\u6587\u4ef6\u8def\u5f84\u4e0b<\/p>\n
let filePath = NSHomeDirectory() + "\/Documents\/appblog.png"\nlet image = UIImage(named: "apple.png")\nlet data:Data = UIImagePNGRepresentation(image!)!\ntry? data.write(to: URL(fileURLWithPath: filePath))<\/code><\/pre>\n
\uff083\uff09\u628aNSArray\u4fdd\u5b58\u5230\u6587\u4ef6\u8def\u5f84\u4e0b<\/p>\n
let array = NSArray(objects: "aaa","bbb","ccc")\nlet filePath:String = NSHomeDirectory() + "\/Documents\/array.plist"\narray.write(toFile: filePath, atomically: true)<\/code><\/pre>\n
\uff084\uff09\u628aNSDictionary\u4fdd\u5b58\u5230\u6587\u4ef6\u8def\u5f84\u4e0b<\/p>\n
let dictionary:NSDictionary = ["Gold": "1st Place", "Silver": "2nd Place"]\nlet filePath:String = NSHomeDirectory() + "\/Documents\/dictionary.plist"\ndictionary.write(toFile: filePath, atomically: true)<\/code><\/pre>\n
\u521b\u5efa\u6587\u4ef6<\/h3>\n
func createFile(name:String, fileBaseUrl:URL) {\n    let manager = FileManager.default\n\n    let file = fileBaseUrl.appendingPathComponent(name)\n    print("\u6587\u4ef6: \\(file)")\n    let exist = manager.fileExists(atPath: file.path)\n    if !exist {\n        let data = Data(base64Encoded:"aGVsbG8gd29ybGQ=" ,options:.ignoreUnknownCharacters)\n        let createSuccess = manager.createFile(atPath: file.path,contents:data,attributes:nil)\n        print("\u6587\u4ef6\u521b\u5efa\u7ed3\u679c: \\(createSuccess)")\n    }\n}\n\n\/\/\u5728\u6587\u6863\u76ee\u5f55\u4e0b\u65b0\u5efatest.txt\u6587\u4ef6\nlet manager = FileManager.default\nlet urlForDocument = manager.urls( for: .documentDirectory,\n                                   in:.userDomainMask)\nlet url = urlForDocument[0]\ncreateFile(name:"test.txt", fileBaseUrl: url)\n\/\/createFile(name: "folder\/new.txt", fileBaseUrl: url)<\/code><\/pre>\n
\u590d\u5236\u6587\u4ef6<\/h3>\n
\uff081\uff09\u65b9\u6cd51<\/p>\n
let fileManager = FileManager.default\nlet homeDirectory = NSHomeDirectory()\nlet srcUrl = homeDirectory + "\/Documents\/appblog.txt"\nlet toUrl = homeDirectory + "\/Documents\/copyed.txt"\ntry! fileManager.copyItem(atPath: srcUrl, toPath: toUrl)<\/code><\/pre>\n
\uff082\uff09\u65b9\u6cd52<\/p>\n
\/\/ \u5b9a\u4f4d\u5230\u7528\u6237\u6587\u6863\u76ee\u5f55\nlet manager = FileManager.default\nlet urlForDocument = manager.urls( for:.documentDirectory, in:.userDomainMask)\nlet url = urlForDocument[0]\n\n\/\/ \u5c06test.txt\u6587\u4ef6\u62f7\u8d1d\u5230\u6587\u6863\u76ee\u5f55\u6839\u76ee\u5f55\u4e0b\u7684copyed.txt\u6587\u4ef6\nlet srcUrl = url.appendingPathComponent("test.txt")\nlet toUrl = url.appendingPathComponent("copyed.txt")\n\ntry! manager.copyItem(at: srcUrl, to: toUrl)<\/code><\/pre>\n
\u79fb\u52a8\u6587\u4ef6<\/h3>\n
\uff081\uff09\u65b9\u6cd51<\/p>\n
let fileManager = FileManager.default\nlet homeDirectory = NSHomeDirectory()\nlet srcUrl = homeDirectory + "\/Documents\/appblog.txt"\nlet toUrl = homeDirectory + "\/Documents\/moved\/appblog.txt"\ntry! fileManager.moveItem(atPath: srcUrl, toPath: toUrl)<\/code><\/pre>\n
\uff082\uff09\u65b9\u6cd52<\/p>\n
\/\/ \u5b9a\u4f4d\u5230\u7528\u6237\u6587\u6863\u76ee\u5f55\nlet manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in:.userDomainMask)\nlet url = urlForDocument[0]\n\nlet srcUrl = url.appendingPathComponent("test.txt")\nlet toUrl = url.appendingPathComponent("copyed.txt")\n\/\/ \u79fb\u52a8srcUrl\u4e2d\u7684\u6587\u4ef6\uff08test.txt\uff09\u5230toUrl\u4e2d\uff08copyed.txt\uff09\ntry! manager.moveItem(at: srcUrl, to: toUrl)<\/code><\/pre>\n
\u5220\u9664\u6587\u4ef6<\/h3>\n
\uff081\uff09\u65b9\u6cd51<\/p>\n
let fileManager = FileManager.default\nlet homeDirectory = NSHomeDirectory()\nlet srcUrl = homeDirectory + "\/Documents\/appblog.txt"\ntry! fileManager.removeItem(atPath: srcUrl)<\/code><\/pre>\n
\uff082\uff09\u65b9\u6cd52<\/p>\n
\/\/ \u5b9a\u4f4d\u5230\u7528\u6237\u6587\u6863\u76ee\u5f55\nlet manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in:.userDomainMask)\nlet url = urlForDocument[0]\n\nlet toUrl = url.appendingPathComponent("copyed.txt")\n\/\/ \u5220\u9664\u6587\u6863\u6839\u76ee\u5f55\u4e0b\u7684toUrl\u8def\u5f84\u7684\u6587\u4ef6\uff08copyed.txt\u6587\u4ef6\uff09\ntry! manager.removeItem(at: toUrl)<\/code><\/pre>\n
\u5220\u9664\u76ee\u5f55\u4e0b\u6240\u6709\u7684\u6587\u4ef6<\/h3>\n
\uff081\uff09\u65b9\u6cd51\uff1a\u83b7\u53d6\u6240\u6709\u6587\u4ef6\uff0c\u7136\u540e\u904d\u5386\u5220\u9664<\/p>\n
let fileManager = FileManager.default\nlet myDirectory = NSHomeDirectory() + "\/Documents\/Files"\nlet fileArray = fileManager.subpaths(atPath: myDirectory)\nfor fn in fileArray!{\n    try! fileManager.removeItem(atPath: myDirectory + "\/\\(fn)")\n}<\/code><\/pre>\n
\uff082\uff09\u65b9\u6cd52\uff1a\u5220\u9664\u76ee\u5f55\u540e\u91cd\u65b0\u521b\u5efa\u8be5\u76ee\u5f55<\/p>\n
let fileManager = FileManager.default\nlet myDirectory = NSHomeDirectory() + "\/Documents\/Files"\ntry! fileManager.removeItem(atPath: myDirectory)\ntry! fileManager.createDirectory(atPath: myDirectory, withIntermediateDirectories: true,\n                                attributes: nil)<\/code><\/pre>\n
\u8bfb\u53d6\u6587\u4ef6<\/h3>\n
let manager = FileManager.default\nlet urlsForDocDirectory = manager.urls(for: .documentDirectory, in:.userDomainMask)\nlet docPath = urlsForDocDirectory[0]\nlet file = docPath.appendingPathComponent("test.txt")\n\n\/\/\u65b9\u6cd51\nlet readHandler = try! FileHandle(forReadingFrom:file)\nlet data = readHandler.readDataToEndOfFile()\nlet readString = String(data: data, encoding: String.Encoding.utf8)\nprint("\u6587\u4ef6\u5185\u5bb9: \\(readString)")\n\n\/\/\u65b9\u6cd52\nlet data2 = manager.contents(atPath: file.path)\nlet readString2 = String(data: data2!, encoding: String.Encoding.utf8)\nprint("\u6587\u4ef6\u5185\u5bb9: \\(readString2)")<\/code><\/pre>\n
\u5728\u4efb\u610f\u4f4d\u7f6e\u5199\u5165\u6570\u636e<\/h3>\n
let manager = FileManager.default\nlet urlsForDocDirectory = manager.urls(for:.documentDirectory, in:.userDomainMask)\nlet docPath = urlsForDocDirectory[0]\nlet file = docPath.appendingPathComponent("test.txt")\n\nlet string = "\u6dfb\u52a0\u4e00\u4e9b\u6587\u5b57\u5230\u6587\u4ef6\u672b\u5c3e"\nlet appendedData = string.data(using: String.Encoding.utf8, allowLossyConversion: true)\nlet writeHandler = try? FileHandle(forWritingTo:file)\nwriteHandler!.seekToEndOfFile()\nwriteHandler!.write(appendedData!)<\/code><\/pre>\n
\u6587\u4ef6\u6743\u9650\u5224\u65ad<\/h3>\n
let manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in:.userDomainMask)\nlet docPath = urlForDocument[0]\nlet file = docPath.appendingPathComponent("test.txt")\n\nlet readable = manager.isReadableFile(atPath: file.path)\nprint("\u53ef\u8bfb: \\(readable)")\nlet writeable = manager.isWritableFile(atPath: file.path)\nprint("\u53ef\u5199: \\(writeable)")\nlet executable = manager.isExecutableFile(atPath: file.path)\nprint("\u53ef\u6267\u884c: \\(executable)")\nlet deleteable = manager.isDeletableFile(atPath: file.path)\nprint("\u53ef\u5220\u9664: \\(deleteable)")<\/code><\/pre>\n
\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027<\/h3>\n
\u521b\u5efa\u65f6\u95f4\uff0c\u4fee\u6539\u65f6\u95f4\uff0c\u6587\u4ef6\u5927\u5c0f\uff0c\u6587\u4ef6\u7c7b\u578b\u7b49\u4fe1\u606f<\/p>\n
let manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in:.userDomainMask)\nlet docPath = urlForDocument[0]\nlet file = docPath.appendingPathComponent("test.txt")\n\nlet attributes = try? manager.attributesOfItem(atPath: file.path) \/\/\u7ed3\u679c\u4e3aDictionary\u7c7b\u578b\nprint("attributes: \\(attributes!)")<\/code><\/pre>\n
\u4ece attributes \u4e2d\u83b7\u53d6\u5177\u4f53\u7684\u5c5e\u6027\uff1a<\/p>\n
print("\u521b\u5efa\u65f6\u95f4\uff1a\\(attributes![FileAttributeKey.creationDate]!)")\nprint("\u4fee\u6539\u65f6\u95f4\uff1a\\(attributes![FileAttributeKey.modificationDate]!)")\nprint("\u6587\u4ef6\u5927\u5c0f\uff1a\\(attributes![FileAttributeKey.size]!)")<\/code><\/pre>\n
\u6587\u4ef6\/\u6587\u4ef6\u5939\u6bd4\u8f83<\/h3>\n
let manager = FileManager.default\nlet urlForDocument = manager.urls(for: .documentDirectory, in:.userDomainMask)\nlet docPath = urlForDocument[0]\nlet contents = try! manager.contentsOfDirectory(atPath: docPath.path)\n\n\/\/\u4e0b\u9762\u6bd4\u8f83\u7528\u6237\u6587\u6863\u4e2d\u524d\u9762\u4e24\u4e2a\u6587\u4ef6\u662f\u5426\u5185\u5bb9\u76f8\u540c\uff08\u8be5\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u7528\u6765\u6bd4\u8f83\u76ee\u5f55\uff09\nlet count = contents.count\nif count > 1 {\n    let path1 = docPath.path + "\/" + (contents[0] as String)\n    let path2 = docPath.path + "\/" + (contents[1] as String)\n    let equal = manager.contentsEqual(atPath: path1, andPath:path2)\n    print("path1\uff1a\\(path1)")\n    print("path2\uff1a\\(path2)")\n    print("\u6bd4\u8f83\u7ed3\u679c\uff1a \\(equal)")\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u6ce8\uff1a\u4ee3\u7801\u5df2\u5347\u7ea7\u81f3Swift4 iOS\u5f00\u53d1\u7ecf\u5e38\u4f1a\u9047\u5230\u8bfb\u6587\u4ef6\uff0c\u5199\u6587\u4ef6\u7b49\uff0c\u5bf9\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u7684\u64cd\u4f5c\uff0c\u8fd9\u65f6\u5c31\u53ef\u4ee5\u4f7f\u7528Fil […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[171],"tags":[],"class_list":["post-571","post","type-post","status-publish","format-standard","hentry","category-swift"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/571","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=571"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/571\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}