Question

我似乎无法将字符数组转换为2D整数数组。具体如下：

我想将包含特定分隔符的字符数组转换为多维数组，其中每行的结尾由字符数组中找到的分隔符指定（我已经在不同的方法中确保每行都有相同的长度）。

该数组仅包含0和1。

问题在于，当测试方法时，它（方法）跳过一行 - 读取第一行，下一行为0，读取第三行，第四行为0。

这些是方法（所讨论的方法和测试方法）：

    /// <summary>
    /// Converts a character array to 2D int array, where each character is a digit and only the digits of 1 and 0 are 
    /// allowed.
    /// </summary>
    /// <returns>The 2D int array.</returns>
    /// <param name="charArray">Character array.</param>
    /// <param name="delimiter">Delimiter.</param>
    public int[,] ConvertCharArrayTo2DIntArray(char[] charArray, char delimiter){
        int columnCounter = 0;
        //count how many rows
        while (charArray [columnCounter] != delimiter) {
            columnCounter++;
        }

        //count how many lines taking into account the delimiter
        int rows = charArray.Length/(columnCounter+1);

        int[,] twoDimArray = new int[rows, columnCounter];

        //count
        int h = 0;
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < columnCounter; j++) {
                if (charArray [h] != '\n') {
                    twoDimArray [i, j] = (int)Char.GetNumericValue(charArray [h]);
                    //throw exception if the array contains numbers other than 1 or 0
                    if (twoDimArray [i, j] != 1 && twoDimArray [i, j] != 0)
                        throw new ArgumentException ();
                    h++;
                } else {
                    h++;
                    break;
                }
            }
        }
        return twoDimArray;
    }

这是测试方法：

    [Test()]
    public void TestConvertCharArrayTo2DIntArray(){
        HelperClass hc = new HelperClass ();
        int[,] twoDimArrayExpected = new int[,]{ 
            { 0, 1, 0, 1, 0 },
            { 0, 1, 0, 1, 0 },
            { 0, 1, 0, 1, 0 },
            { 0, 1, 0, 1, 0 } };
        char[] charArray = new char[] {'0','1','0','1','1','\n','1','1','1','1','1','\n','0','1','1','1','0','\n','0','1','0','1','0','\n'};
        int[,] twoDimArrayActual = hc.ConvertCharArrayTo2DIntArray (charArray, '\n');
        for (int i = 0; i < twoDimArrayExpected.GetLength (0); i++) {
            for (int j = 0; j < twoDimArrayExpected.GetLength (1); j++) {
                Console.Write (twoDimArrayActual [i,j]);
                //Commented out because it throws exceptions                                 
                //Assert.AreEqual(twoDimArrayExpected[i,j],
                //twoDimArrayActual[i,j]);
                if (j == twoDimArrayExpected.GetLength (1) - 1) {
                    Console.Write ("\n");
                }
            }
        }
    }

输出是这样的：

01011

00000

11111

00000

我可能只是陷入困境，但现在我真的无法解决这个问题。

Answer 1

当内循环结束时，您将定位在分隔符上。这是您需要跳过增加控制变量public protocol SettingsStore { func objectForKey(key: String) -> AnyObject? func setObject(value: AnyObject?, forKey key: String) func dictionaryForKey(key: String) -> [String:AnyObject]? } public class UserDefaultsSettingsStore { private let userDefaults: NSUserDefaults public init() { self.userDefaults = NSUserDefaults.standardUserDefaults() } public init(suiteName: String) { self.userDefaults = NSUserDefaults(suiteName: suiteName)! } } extension UserDefaultsSettingsStore: SettingsStore { public func objectForKey(key: String) -> AnyObject? { return self.userDefaults.objectForKey(key) } public func setObject(value: AnyObject?, forKey key: String) { self.userDefaults.setObject(value, forKey: key) self.userDefaults.synchronize() } public func dictionaryForKey(key: String) -> [String : AnyObject]? { return self.userDefaults.dictionaryForKey(key) } }

的字符分隔符的点

正如您现在所做的那样，增加控制变量，然后突破内循环。然而，删除中断指令并不起作用，因为退出内部循环会增加外部循环的控制变量h，从而使每个偶数行都为空且未处理

您可以尝试使用

修复代码

Answer 2

如果使用列表对象，则非常简单

 List<List<int>> twoDimArrayExpected = new List<List<int>>() { 
               new List<int>() { 0, 1, 0, 1, 0 },
               new List<int>(){ 0, 1, 0, 1, 0 },
               new List<int>(){ 0, 1, 0, 1, 0 },
               new List<int>(){ 0, 1, 0, 1, 0 } };

            string resutls = string.Join("\n", twoDimArrayExpected.Select(x => string.Join("", x)));

字符数组转换为2D整数数组失败

2 个答案: