如何在Swift中将.txt文件拆分成多维数组或字典？

// 1. 读取.txt文件内容
guard let fileURL = Bundle.main.url(forResource: "data", withExtension: "txt") else {
    print("文件不存在")
    return
}

do {
    let fileContent = try String(contentsOf: fileURL)
    
    // 2. 解析文件内容
    let lines = fileContent.components(separatedBy: .newlines)
    
    // 3. 创建二维数组
    var dataArray: [[String]] = []
    
    // 4. 将数据存入二维数组
    for line in lines {
        let row = line.components(separatedBy: ",")
        dataArray.append(row)
    }
    
    // 5. 使用数据
    print(dataArray)
} catch {
    print("读取文件失败: \(error)")
}