//确定按钮
private void button1_Click(object sender, EventArgs e)
{
base.Close();
Thread th = new Thread(delegate()
{
//遍历最底层选中节点
string str = "";
Stack <TreeNode> stk = new Stack <TreeNode>();
foreach (TreeNode tn in treeView1.Nodes)
{
stk.Push(tn);
}
while (stk.Count != 0)
{
TreeNode tn = stk.Pop();
if (tn.GetNodeCount(false) != 0)
{
foreach (TreeNode child in tn.Nodes)
{
stk.Push(child);
}
}
else if (tn.Checked)
{
str += tn.Name + ",";
}
}
string[] a = str.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
List <string> T = a.ToList <string>();
Dictionary <int, string> dic = new Dictionary <int, string>();
int count = 0;
if (ixOffline)
{
//遍历离线题库
foreach (string s in T)
{
try
{
foreach (string ss in Directory.GetDirectories("ChoiceSource\\" + subject + "\\" + s))
{
foreach (string sss in Directory.GetFiles(ss))
{
dic.Add(++count, sss);
}
}
}
catch (System.IO.DirectoryNotFoundException)
{
MessageBox.Show("离线试题库不完整，请更新题库！");
}
}
}
else
{
//遍历在线题库
foreach (string s in T)
{
try
{
foreach (string ss in DownloadFolder.ftpGetDir("ftp://202.118.26.80/ChoiceSource/" + subject + "/" + s, ""))
{
foreach (string sss in DownloadFolder.GetFtpFileList(ss, WebRequestMethods.Ftp.ListDirectory))
{
dic.Add(++count, sss);
}
}
}
catch (Exception) { MessageBox.Show("题库中没有相应的题！"); }
}
}
//随机抽取试题
int[] myRandoms = new int[25];
for (int i = 0; i < (25 < count ? 25 : count); ++i)
{
int myRandom;
bool flag = false;
do
{
myRandom = new Random(Guid.NewGuid().GetHashCode()).Next(1, count + 1);
Debug.WriteLine(myRandom);
myRandoms[i] = myRandom;
flag = false;
for (int j = 0; j < i; ++j)
{
if (myRandoms[j] == myRandom) //1 2 3 4 5 6 7 myran=1
{
flag = true;
}
}
} while (flag);
}
string str2 = "";
for (int i = 0; i < (25 < count ? 25 : count); ++i)
{
Debug.WriteLine(dic[myRandoms[i]]);
str2 += dic[myRandoms[i]] + ",";
}
if (ixOffline)
{
//从ChoiceSource\...\*.zip到*.zip
string[] strArray = str2.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
str2 = "";
string[] strArray_2 = new String[5];
for (int i = 0; i < strArray.Length; i++)
{
strArray_2 = strArray[i].Split(new char[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
str2 += strArray_2[4] + ",";
}
}
//从*.zip到*
str2 = str2.Replace(".zip", "");
//删除做对过的题
string[] strList1 = str2.Split(',');
string done = "";
if (File.Exists("OkayChoice_" + subject + ".txt"))
{
FileStream aFile = new FileStream("OkayChoice_" + subject + ".txt", FileMode.Open);
StreamReader sw = new StreamReader(aFile);
done = sw.ReadToEnd();
sw.Close();
aFile.Close();
}
for (int i = 0; i < strList1.Length; ++i)
{
if (done.Contains(strList1[i]))
{
strList1[i] = "";
}
}
string strList2 = string.Join(",", strList1);
strList2 = strList2.Replace(",,", ",");
this.exerciseChoice = strList2;
//完成
this.worker.WorkerReportsProgress = true;
this.worker.RunWorkerAsync();
});
th.IsBackground = true;
th.Start();
}