c#做的简单通讯录

namespace 简单通讯录 { public partial class Form4 : Form { private Boolean ischange = true; public Form4() { InitializeComponent(); } public void addlistviewitem(String[] a) { ListViewItem item = new ListViewItem(a); listView1.Items.Add(item); } //保存 public void save() { FileStream fs = new FileStream(@"通讯录.txt", FileMode.Create, FileAccess.Write); StreamWriter sw = new StreamWriter(fs, Encoding.Default); for (int i = 0; i < this.listView1.Items.Count; i++) { sw.WriteLine(string.Format("{0}|{1}|{2}|{3}|{4}|{5}", listView1.Items[i].SubItems[0].Text, listView1.Items[i].SubItems[1].Text, listView1.Items[i].SubItems[2].Text, listView1.Items[i].SubItems[3].Text, listView1.Items[i].SubItems[4].Text,