Question

任何人都可以帮我改变基于特定值的数组顺序，即，如果我的数组= [0,1,2,3,4,5,6]并且我想重新排列数组值，如果有一些值像5那么数组应该像[5,6,0,1,2,3,4]那样，如果我有一个值4那么数组应该从[4,5,6,0,1,2]开始，3]

string[] GetDays; //"Here i will get value from User"
string value; //"This value will also come from User but will always be present in above Array"

if(GetDays.Find(value))
{
    //Rearrange the sort starting with value in ascending
}

注意：数组元素不是常量，所以我们必须以编程方式排列顺序，因为某些时间数组可以是[1,3,5,6]，如果我的值为5，那么我的数组应该像[5， 6,1,3]。感谢

Answer 1

将Array.Sort与Comparer一起使用：像这样：

     var a=new []{1,2,3,4,5,6};
     var v=5;
     //Create IComparer
     Comparison<int> comparison = (x,y) => (x >= v && y < v) 
                                ? -1             // Case x is over user value but y is not: x ordered before y
                                : x.CompareTo(y); // otherwise standard comparison;
     Array.Sort(a, comparison);

Answer 2

这可以通过几行来实现：

int[] test = {0, 1, 2, 3, 4, 5, 6};
var userValue = 3;
var sorted = test.GroupBy(i => i < userValue).OrderBy(i => i.Key)
            .Select(i => i.OrderBy(j => j)).SelectMany(i => i).ToArray();

输出：

{3,4,5,6,0,1,2}

Answer 3

string[] GetDays = {"s","t","a","c","k"};
string [] temparray = new string[GetDays.Length];
string value = "c";
int index = Array.IndexOf<string>(GetDays, value);
for(int i=0;i<GetDays.Length;i++)
{
    temparray[i] = GetDays[inde];
    index = index+1>=GetDays.Length?0:index+1;          
}

temparray将包含所需的输出。

从C＃中的匹配模式排列数组值

3 个答案: