解决方案
20
int[] array=new array[]{1，1，1，2，2，2，3，3，4};
var groups=array.GroupBy(x=>x);
var datacounts=groups.Where(x=>x.Count()==groups.Max(y=>y.Count()));
foreach(var datacount in datacounts)
{
Console.WriteLine(datacount.Key);
}
var groups=array.GroupBy(x=>x);
var datacounts=groups.Where(x=>x.Count()==groups.Max(y=>y.Count()));
foreach(var datacount in datacounts)
{
Console.WriteLine(datacount.Key);
}
20
int[] numbers = new int[] { 1, 1, 1, 2, 2, 2,2, 3, 3, 4 };
var results = numbers.GroupBy(x => x).Select(y => new
{
num = y.Key,
count = y.Count()
});
var max = results.Max(x => x.count);
results = results.Where(r => r.count == max);
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