c#去除重复项
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Collections;
namespace WindowsFormsApplication130
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Dictionary<string, string> dic = new Dictionary<string, string>();
string[] str;
ArrayList array = new ArrayList();
private void Form1_Load(object sender, EventArgs e)
{
str = new string[] { "wo", "wo", "ni", "ni", "ta", "ta", "en", "en", "hehe", "shidi", "en" };
}
public ArrayList a()
{
for (int i = 0; i < str.Length; i++)
{
try
{
dic.Add(str[i], "w");
array.Add(str[i]);
}
catch
{ }
finally
{ }
}
return array;
}
private void button1_Click(object sender, EventArgs e)
{
string[] s =new string [a ().Count ] ;
for (int i = 0; i < s.Length; i++)
{
s[i] = array[i].ToString();
}
this.richTextBox1.Lines = s;
}
}
}
