简单问题___________________如何去除相同值?

[yyf888yyf]

简单问题,如何去除相同值?
我想从 string str1=”1,2,3,4,11,1,33,2,55,3,12,66,4,88,”;
得到11,33,55,66,88,不要重复的1,2,3,4

[sonny72]

先放到数组中,一个个去比对,没有相同的提出,另存就可以了

[looner]

private void button1_Click(object sender, System.EventArgs e)
{
const string flag = "x";
string str1="1,2,3,4,11,1,33,2,55,3,12,66,4,88,";
string[] a =str1.Split(',');
for (int i=0;i<a.Length-1;i++)
{
if (a[i] == flag)
continue;
for(int j=i+1;j<a.Length;j++)
{
if (a[j] == flag)
continue;
if (a[i] == a[j])
a[j] = flag;
}
}
System.Text.StringBuilder sb = new System.Text.StringBuilder();
for (int i=0;i<a.Length;i++)
{
if (a[i] != flag && a[i] != string.Empty)
sb.Append(a[i] + ",");
}
MessageBox.Show(sb.ToString());

}

[zykj_2000]

用split把字符串变成数组,然后,用两个循环一个一个比较