public string resStr2 = ""; //存储标准答案替换字段
/// <summary>
/// charList1 原题文章字符数组
/// charList2 标准答案字符数组
/// </summary>
/// <param name="charList1"></param>
/// <param name="charList2"></param>
public ReplaceWord(char[] charList1, char[] charList2)
{
//char[] charList1 = readWord1.strList.ToCharArray();
List <string> TextList1 = new List <string>();
foreach (char i in charList1)
{
TextList1.Add(i.ToString());
}
string[] strList1 = TextList1.ToArray();
List <string> TextList2 = new List <string>();
foreach (char i in charList2)
{
TextList2.Add(i.ToString());
}
string[] strList2 = TextList2.ToArray();
LCS <string> strLCS = new LCS <string>(strList1, strList2);
string str1 = "";
string str2 = "";
for (var i = 0; i < strLCS.Items.Length; i++)
{
if (strLCS.Items[i].ToString().IndexOf("-") == 0)
{
str1 += strLCS.Items[i].ToString().Substring(1);
}
else if (strLCS.Items[i].ToString().IndexOf("+") == 0)
{
str2 += strLCS.Items[i].ToString().Substring(1);
}
}
char[] res1 = str1.ToCharArray();
char[] res2 = str2.ToCharArray();
List <string> resList1 = new List <string>();
List <string> resList2 = new List <string>();
for (var j = 0; j < res1.Length; j++)
{
if (resStr1.IndexOf(res1[j]) == -1)
{
resStr1 += res1[j];
}
}
for (var k = 0; k < res2.Length; k++)
{
if (resStr2.IndexOf(res2[k]) == -1)
{
resStr2 += res2[k];
}
}
}
/// <summary>
/// 从index开始在strLCS中往后搜索替换字符串
/// </summary>
/// <param name="index">开始搜索的位置</param>
/// <param name="strLCS">LCS串</param>
/// <param name="strBefore">返回：原字符串，如果未找到替换，strBefore为空</param>
/// <param name="strAfter">返回：替换目标字符串</param>
/// <returns>返回最后的Item的下一个Item的位置</returns>
static int GetNextReplace(int index, LCS <char> strLCS, ref string strBefore, ref string strAfter)
{
//ITEM_MODE.X表示源文件中的原始文字，这里是原题，ITEM_MODE.Y表示目标文件中的替换后的新文字，这里是答案。
//本实验只有两种情况
//情况1，全文替换文字：先出现ITEM_MODE.Y后出现ITEM_MODE.X
//情况2，全文删除文字：直接出现ITEM_MODE.X
//出现ITEM_MODE.Y后没有出现ITEM_MODE.X表示增加文字，不是本实验研究范围。
strBefore = null;
strAfter = null;
int i;
for (i = index; i < strLCS.Items.Length; i++)
{
Item <char> item = strLCS.Items[i];
if (item.Mode == ITEM_MODE.Y)
{
//Console.WriteLine(item); //测试用
//如果遇到下一组替换，本次替换结束
if (strBefore != null)
{
break;
}
strAfter += item.Value;
}
else if (item.Mode == ITEM_MODE.X)
{
//Console.WriteLine(item);//测试用
strBefore += item.Value;
}
else
{
if (strBefore != null)
{
break;
}
else if (strAfter != null) //如果只是增加，不认为是替换，继续往后找
{
strAfter = null;
}
}
}
return(i);
}
public Grade(string url1, string url2)
{
//替换前的字符串
string strBefore = null;
//替换后的字符串
string strAfter = null;
//替换出现的次数
int Count = 0;
EWordDocument eWordDocument原题 = new EWordDocument();
eWordDocument原题.Open(url1);
EWordDocument eWordDocument答案 = new EWordDocument();
eWordDocument答案.Open(url2);
int idx;
for (int i = 0; i < eWordDocument原题.LText.Count(); i++)
{
char[] arrayX = eWordDocument原题.LText[i].ToArray();
char[] arrayY = eWordDocument答案.LText[i].ToArray();
LCS <char> strLCS = new LCS <char>(arrayX, arrayY);
idx = 0;
string strBefore_ = null;
string strAfter_ = null;
while (idx < strLCS.Items.Length)
{
//如果未找到替换，strBefore为空
if (strBefore == null)
{
idx = GetNextReplace(idx, strLCS, ref strBefore, ref strAfter);
if (strBefore != null)
{
Count++;
}
}
else
{
idx = GetNextReplace(idx, strLCS, ref strBefore_, ref strAfter_);
if (strBefore == strBefore_ && strAfter == strAfter_)
{
Count++;
}
}
}
}
if (strBefore != null)
{
grade = Count;
if (strAfter != null)
{
title = "替换题：请将文中所有的文字" + strBefore + "替换为" + strAfter + "。总分：" + Count + "分";
}
else
{
title = "替换题：请删除文中所有的文字" + strBefore + "总分：" + Count + "分";
}
}
else
{
title = "没有替换题！";
}
}