c# - 将字符串数组中的元素向左移动以填充 'holes'

Question

我有一个姓名和电话号码列表，如下所示:

var phonelist = List<string[]> 
{
     new string[] {"Bill", "1234", "12345", "12314" },
     new string[] {"Bob", "", "12345", "12314" },
     new string[] {"Chris", "", "", "12314" },
     new string[] {"Dave", "1234", "", "12314" },
     new string[] {"Andy", "1234", "12345", "" },
}

处理此列表以便从右侧填充“空”数字的最有效/最优雅的方法是什么？

请注意，数组应保持相同的长度，如下所示:

var phonelist = List<string[]> 
{
     new string[] {"Bill", "1234", "12345", "12314" },
     new string[] {"Bob", "12345", "12314", "" },
     new string[] {"Chris", "12314", "", "" },
     new string[] {"Dave", "1234", "12314", "" },
     new string[] {"Andy", "1234", "12345", "" },
}

Answer 1

对于每个数组单元格，检查它是否为空并将其与 cell+1 交换，如果它仍然为空则将其与 cell+2 交换。当单元格不为空时对 cell+2 执行相同的操作...

    int j;

    foreach (string[] strs in phoneList)
    {
        for (int i = 0; i < strs.Length; i++)
        {
            j = 1;
            while (string.IsNullOrEmpty(strs[i]) && j < strs.Length - i)
            {
                if (!string.IsNullOrEmpty(strs[i + j])) // to not swap 2 empty strings
                {
                    strs[i] = strs[i + j];
                    strs[i + j] = "";
                }
                j++;
            }
        }
    }