IOS Swift 刪除不要的字串並取代

語法：

str.replacingOccurrences(of: "/ file", with: "")

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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 )" ) } ...