Listbox 相互比较 问题！

Question

2个listbox 
吧listbox1中的内容逐条到listbox2中去查找。
找到返回 “1”  没有返回 “0”  
最后存到一个字符串中 
结果： “1，0，1，0，0，0，1”
求助！

Answer 1

 ListBox l = new ListBox();
            ListBox l2 = new ListBox();
            l.Items.Add("1");
            l.Items.Add("2");
            l.Items.Add("3");            l2.Items.Add("1");
            l2.Items.Add("12");
            l2.Items.Add("112");            ArrayList list = new ArrayList();
            foreach (object o in l.Items)
            {
                if (l2.Items.IndexOf(o) == -1)
                {
                    list.Add(o);
                }
            }

Answer 2

ListBox l = new ListBox(); 
            ListBox l2 = new ListBox(); 
            l.Items.Add("1"); 
            l.Items.Add("2"); 
            l.Items.Add("3");             l2.Items.Add("1"); 
            l2.Items.Add("12"); 
            l2.Items.Add("112");             ArrayList list = new ArrayList(); 
            foreach (object o in l.Items) 
            { 
                if (l2.Items.IndexOf(o) == -1) 
                { 
                    list.Add(o); 
                } 
            }       foreach (object o in l2.Items) 
            { 
                if (l.Items.IndexOf(o) == -1) 
                { 
                    list.Add(o); 
                } 
            } 

Answer 3

string result = "";
for(int i=0;i<listBox1.Items.Count;i++)
{
    int index = listBox2.FindString(listBox1.Items[i].ToString());
    if(index > -1)
        if(i!=listBox1.Items.Count - 1)
            result += "1,";
        else 
            result += "1";
    else
        if(i!=listBox1.Items.Count - 1)
            result += "0,";
        else 
            result += "0";
}

Answer 4

System.Collections.ArrayList array = new System.Collections.ArrayList();
            
                foreach (object obj in this.listBox1.Items)
                {
                    if (this.listBox1.Items.IndexOf(obj) != -1)
                        array.Add(1);
                    else
                        array.Add(2);
                }
              string[] strs=(string [])   array.ToArray(typeof(string));

Answer 5

                System.Collections.ArrayList array = new System.Collections.ArrayList();            
                foreach (object obj in this.listBox1.Items)
                {
                    if (this.listBox2.Items.IndexOf(obj) != -1)
                        array.Add(1);
                    else
                        array.Add(0);
                }
                string[] strs=(string [])   array.ToArray(typeof(string));