C#中Arraylist的sort函数用法实例分析
本文实例讲述了C#中Arraylist的sort函数用法。分享给大家供大家参考。具体如下：
ArrayList的sort函数有几种比较常用的重载：
1.不带参数
2.带一个参数
publicvirtualvoidSort( IComparercomparer )
参数
comparer
类型：System.Collections.IComparer
比较元素时要使用的IComparer实现。
-或-
null引用（VisualBasic中为Nothing）将使用每个元数的IComparable实现。
示例:
usingSystem;
usingSystem.Collections;
publicclassSamplesArrayList{
publicclassmyReverserClass:IComparer{
//CallsCaseInsensitiveComparer.Comparewiththeparametersreversed.
intIComparer.Compare(Objectx,Objecty){
return((newCaseInsensitiveComparer()).Compare(y,x));
}
}
publicstaticvoidMain(){
//CreatesandinitializesanewArrayList.
ArrayListmyAL=newArrayList();
myAL.Add("The");
myAL.Add("quick");
myAL.Add("brown");
myAL.Add("fox");
myAL.Add("jumps");
myAL.Add("over");
myAL.Add("the");
myAL.Add("lazy");
myAL.Add("dog");
//DisplaysthevaluesoftheArrayList.
Console.WriteLine("TheArrayListinitiallycontainsthefollowingvalues:");
PrintIndexAndValues(myAL);
//SortsthevaluesoftheArrayListusingthedefaultcomparer.
myAL.Sort();
Console.WriteLine("Aftersortingwiththedefaultcomparer:");
PrintIndexAndValues(myAL);
//SortsthevaluesoftheArrayListusingthereversecase-insensitivecomparer.
IComparermyComparer=newmyReverserClass();
myAL.Sort(myComparer);
Console.WriteLine("Aftersortingwiththereversecase-insensitivecomparer:");
PrintIndexAndValues(myAL);
}
publicstaticvoidPrintIndexAndValues(IEnumerablemyList){
inti=0;
foreach(ObjectobjinmyList)
Console.WriteLine("\t[{0}]:\t{1}",i++,obj);
Console.WriteLine();
}
}
/*
Thiscodeproducesthefollowingoutput.
TheArrayListinitiallycontainsthefollowingvalues:
[0]:The
[1]:quick
[2]:brown
[3]:fox
[4]:jumps
[5]:over
[6]:the
[7]:lazy
[8]:dog
Aftersortingwiththedefaultcomparer:
[0]:brown
[1]:dog
[2]:fox
[3]:jumps
[4]:lazy
[5]:over
[6]:quick
[7]:the
[8]:The
Aftersortingwiththereversecase-insensitivecomparer:
[0]:the
[1]:The
[2]:quick
[3]:over
[4]:lazy
[5]:jumps
[6]:fox
[7]:dog
[8]:brown
*/
希望本文所述对大家的C#程序设计有所帮助。