在arraylist中如何去除重复记录啊

[wanglei0420]

比如 ArrayList al=new ArrayList();
al.Add("dd");
al.Add("ee");
al.Add("ff");
al.Add("ee");
al.Add("aa");
我要除去重复记录应该怎么作啊

[jason909]

ArrayList al=new ArrayList();
al.Add("dd");
al.Add("ee");
al.Add("ff");
al.Add("ee");
al.Add("aa");
ArrayList bl = new ArrayList();
for (int i = 0; i < al.Count; i++)
{
if (!bl.Contains(al[i]))
{
bl.Add(al[i]);
}
}
al = bl;

[winner2050]

被楼上抢先了。

[Zine_Alone]

抢先了写要摆出姿态.
别人亮剑，我亮代码.


ArrayList arryList=new ArrayList();
arryList.Add("dd");
arryList.Add("ee");
arryList.Add("ff");
arryList.Add("ee");
arryList.Add("aa");
ArrayList arryListNew= new ArrayList();
for (int i = 0; i < arryList.Count; i++)
{
if (!arryListNew.Contains(arryList[i]))
{
arryListNew.Add(al[i]);
}
}

[Zine_Alone]

继续

ArrayList arryList = new ArrayList();
arryList.Add("dd");
arryList.Add("ee");
arryList.Add("ff");
arryList.Add("ee");
arryList.Add("aa");
ArrayList arryListNew = new ArrayList();
foreach (object ob in arryList)
{
if (!arryListNew.Contains(ob))
{
arryListNew.Add(ob);
}
}

[KIEKI-LEO]

...一楼的动作好快

[aliketen]

//过滤数组中重复元素
public static string[] FilterRepeat(string[] _StringArray)
{
ArrayList _ArrayList = new ArrayList();
foreach(string _String in _StringArray)
{
if(!_ArrayList.Contains(_String))
{
_ArrayList.Add(_String);
}
}
return (string[])_ArrayList.ToArray(typeof(string));
}

//过滤字符串中重复元素
public static string FilterRepetitionString(string str)
{
str += ",";
string str1 = "";
while(str.Length>0)
{
string str2 = str.Substring(0,str.IndexOf(",")+1);
str1 += str2;
str = "," + str;
while(str.IndexOf(","+str2)>=0)
{
str = str.Replace(","+str2,",");
}
str = str.Remove(0,1);
}
str1 = str1.Substring(0,str1.Length-1);
return str1;
}

[wo123deshenghuo]

路过，学习了