问题:有没有办法在C#中格式化这样的空格? [英] Question: Is There A Way To Format White-space Like This In C#?

问题描述

是否可以在C#中格式化这样的空格?

我想知道是否可以将字符串数组解析为一种方法，并使其返回带有空格的格式化字符串，所以我有一种特定的方式需要这样做，因此下面是一个示例:

I would like to know if you could parse string arrays into a method and get it to return you a formatted string with white-spaces, there is a specific way i need this done so here's an example:

string[][] StringArray = new string[][] {
    new string[] {"Name:", "John Jones."}
    new string[] {"Date of birth:", "07/11/1989."}
    new string[] {"Age:", "29 Years old."}
};

FormatWhiteSpace(StringArray, Padding: 5);

输出为:

Name:              John Jones.
Date of birth:     07/11/1989.
Age:               29 Years old.

如您在上面的输出中所见，所有内容都已对齐，并有5个空格用于填充，这是我们在调用该方法时定义的.这正是我们想要的.我们还有一个二维数组，因为它允许我们一次解析多于1行. 这是另一个示例，这次有两个以上的列:

As you see above in the output everything is lined up and with 5 spaces for padding as defined when we called the method. This is exactly what we want. Also we have a 2 dimensional array because that allows us to parse in more than 1 line at once. Here's another example, this time with more than two columns:

string[][] StringArray = new string[][] {
    new string[] {"Name:", "John", "Jones."}
    new string[] {"Date of birth:", "Monday,", "07/11/1989."}
    new string[] {"Age:", "29", "Years old."}
};

FormatWhiteSpace(StringArray, Padding: 2);

第二个输出将是:

Name:           John     Jones.
Date of birth:  Monday,  07/11/1989.
Age:            29       Years old.

这就是我想知道的一切，如果您知道有什么可以帮助您的 我，请让我知道.谢谢您的帮助，你们真的让我 一天.

That's all i would like to know if you know of anything that can help me please let me know. Thanks for your help, you guys really made my day.

推荐答案

我个人喜欢使用Linq，它也适用于任意数量的列，并将计算每列所需的距离.

I personally love using Linq, also this works with any number of columns and will calculate the distance needed for each column.

void Main()
{
    string[][] StringArray = new string[][] {
    new [] {"Name:", "John", "Jones."},
    new [] {"Date of birth:", "Monday,", "07/11/1989."},
    new [] {"Age:", "29", "Years old."}};

    var lines = FormatWhiteSpace(StringArray, Padding: 2);

    foreach (var line in lines)
    {
        Console.WriteLine(line);
    }
}

private IEnumerable<string> FormatWhiteSpace(string[][] StringArray, int Padding)
{
    var maxLengthDict = StringArray
        .Select(sa => sa.Select((s, i) => new { Column = i, MaxLength = s.Length }))        
        .SelectMany(x => x)
        .GroupBy(x => x.Column)
        .Select(x => new {Column = x.Key, MaxLength = x.Max(y => y.MaxLength)})
        .ToDictionary(x => x.Column, x => x.MaxLength);

    return StringArray
        .Select(sa => string.Concat(sa.Select((s, i) => s.PadRight(maxLengthDict[i] + Padding))));
}

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