Bag 容器程式 -- C#

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using System;
using System.Linq;
using System.Collections.Generic;

namespace ccc
{
    class ObjCount
    {
        public Object obj;
        public int count;
        public override string ToString()
        {
            return String.Format("{0}:{1}", obj, count);
        }
    }

    class Bag : Dictionary<Object, ObjCount>
    {
        public virtual Bag add(Object key)
        {
            ObjCount o = null;
            if (this.ContainsKey(key))
                o = this[key];
            else
                o = new ObjCount { obj=key, count=0 };
            o.count ++;
            this[key] = o;
            return this;
        }

        public IEnumerable<ObjCount> sort()
        {
            IEnumerable<ObjCount> cbag = (IEnumerable<ObjCount>) this.Values;
            return cbag.OrderBy(o => -o.count);
        }
    }
}

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page revision: 0, last edited: 21 Oct 2010 04:39

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