TXT插入者批量随机插入代码

private void btn_PLEnglishSingleInsert_Click(object sender, EventArgs e)

{

    if ((this.txtb_FolderIn.Text == string.Empty) || !Directory.Exists(this.txtb_FolderIn.Text))

    {

        MessageBox.Show("批量插入的文件夹路径错误!");

    }

    else if ((this.txtb_FolderOut.Text == string.Empty) || !Directory.Exists(this.txtb_FolderOut.Text))

    {

        MessageBox.Show("批量输出的文件夹路径错误!");

    }

    else

    {

        spin spin = new spin();

        string contents = "";

        if (this.cb_Subfolder.Checked)

        {

            foreach (string str2 in Directory.GetDirectories(this.txtb_FolderIn.Text))

            {

                DirectoryInfo info = new DirectoryInfo(str2);

                foreach (FileInfo info2 in info.GetFiles("*.txt"))

                {

                    using (StreamReader reader = info2.OpenText())

                    {

                        string str3;

                        int num3;

                        int num4;

                        Random random;

                        int num6;

                        int length = 0;

                        int index = 0;

                        bool flag = false;

                        if ((this.txtb_FolderIn.Text == string.Empty) || !Directory.Exists(this.txtb_FolderIn.Text))

                        {

                            MessageBox.Show("批量插入的文件夹路径错误!");

                        }

                        else if ((this.txtb_FolderOut.Text == string.Empty) || !Directory.Exists(this.txtb_FolderOut.Text))

                        {

                            MessageBox.Show("批量输出的文件夹路径错误!");

                        }

                        else if (this.txtb_Keywords.Text == string.Empty)

                        {

                            MessageBox.Show("输入不完全, 请填写完整!");

                        }

                        else if ((this.txtb_RandomTime.Text == string.Empty) && this.rb_PartIn.Checked)

                        {

                            MessageBox.Show("输入不完全, 请填写完整!");

                        }

                        else

                        {

                            str3 = reader.ReadToEnd();

                            num3 = str3.Length;

                            num4 = 0;

                            random = new Random(DateTime.Now.Second);

                            for (int j = 0; j < str3.Length; j++)

                            {

                                if (str3[j] == ' ')

                                {

                                    flag = true;

                                }

                            }

                            if (!flag)

                            {

                                MessageBox.Show("文章内无空格, 非法");

                            }

                            else

                            {

                                if (!this.rb_PartIn.Checked)

                                {

                                    goto Label_0508;

                                }

                                num6 = int.Parse(this.txtb_RandomTime.Text);

                                if (num6 <= this.txtb_Keywords.Lines.Length)

                                {

                                    goto Label_03DA;

                                }

                                MessageBox.Show("插入个数不能小于插入内容栏内项的个数, 请重新输入!");

                            }

                        }

                        return;

                    Label_025A:

                        length = random.Next(3, num3 - 2);

                        if ((str3[length - 1] == ' ') && (str3[length] == ' '))

                        {

                            index++;

                            num4 = random.Next(num6 + 1, num6 + 100);

                            str3 = str3.Substring(0, length) + spin.Spinner(this.txtb_Keywords.Lines[num4 % this.txtb_Keywords.Lines.Length], num4) + str3.Substring(length);

                        }

                        else if (str3[length - 1] == ' ')

                        {

                            if (str3[length - 3] != '<')

                            {

                                index++;

                                num4 = random.Next(num6 + 1, num6 + 100);

                                str3 = str3.Substring(0, length) + spin.Spinner(this.txtb_Keywords.Lines[num4 % this.txtb_Keywords.Lines.Length], num4) + " " + str3.Substring(length);

                            }

                        }

                        else if ((str3[length + 1] == ' ') && (str3[length - 1] != '<'))

                        {

                            index++;

                            num4 = random.Next(num6 + 1, num6 + 100);

                            str3 = str3.Substring(0, length + 1) + " " + spin.Spinner(this.txtb_Keywords.Lines[num4 % this.txtb_Keywords.Lines.Length], num4) + str3.Substring(length + 1);

                        }

                    Label_03DA:

                        if (index < num6)

                        {

                            goto Label_025A;

                        }

                        goto Label_051C;

                    Label_03E8:

                        length = random.Next(3, num3 - 2);

                        if ((str3[length - 1] == ' ') && (str3[length] == ' '))

                        {

                            str3 = str3.Substring(0, length) + spin.Spinner(this.txtb_Keywords.Lines[index], length) + str3.Substring(length);

                            index++;

                        }

                        else if (str3[length - 1] == ' ')

                        {

                            if (str3[length - 3] != '<')

                            {

                                str3 = str3.Substring(0, length) + spin.Spinner(this.txtb_Keywords.Lines[index], length) + " " + str3.Substring(length);

                                index++;

                            }

                        }

                        else if ((str3[length + 1] == ' ') && (str3[length - 1] != '<'))

                        {

                            str3 = str3.Substring(0, length + 1) + " " + spin.Spinner(this.txtb_Keywords.Lines[index], length) + str3.Substring(length + 1);

                            index++;

                        }

                    Label_0508:

                        if (index < this.txtb_Keywords.Lines.Length)

                        {

                            goto Label_03E8;

                        }

                    Label_051C:

                        contents = str3;

                        string path = "";

                        for (int i = this.txtb_FolderIn.Text.Length + 1; i < str2.Length; i++)

                        {

                            path = path + str2[i];

                        }

                        new DirectoryInfo(this.txtb_FolderOut.Text).CreateSubdirectory(path);

                        File.AppendAllText(this.txtb_FolderOut.Text + @"\" + path + @"\" + info2.Name, contents);

                    }

                }

            }

            MessageBox.Show("成功!");

        }

        else

        {

            DirectoryInfo info4 = new DirectoryInfo(this.txtb_FolderIn.Text);

            foreach (FileInfo info5 in info4.GetFiles("*.txt"))

            {

                using (StreamReader reader2 = info5.OpenText())

                {

                    string str5;

                    int num10;

                    int num11;

                    int num12;

                    Random random2;

                    int num8 = 0;

                    int num9 = 0;

                    bool flag2 = false;

                    if (this.txtb_Keywords.Text == string.Empty)

                    {

                        MessageBox.Show("输入不完全, 请填写完整!");

                    }

                    else

                    {

                        str5 = reader2.ReadToEnd();

                        num10 = str5.Length;

                        num11 = 0;

                        num12 = this.txtb_Keywords.Lines.Length;

                        if (num12 > this.txtb_Keywords.Lines.Length)

                        {

                            MessageBox.Show("插入个数不能小于插入内容栏内项的个数, 请重新输入!");

                        }

                        else

                        {

                            random2 = new Random(DateTime.Now.Second);

                            for (int k = 0; k < str5.Length; k++)

                            {

                                if (str5[k] == ' ')

                                {

                                    flag2 = true;

                                }

                            }

                            if (!flag2)

                            {

                                MessageBox.Show("文章内无空格, 非法");

                            }

                            else

                            {

                                if (!this.rb_PartIn.Checked)

                                {

                                    goto Label_09F5;

                                }

                                num12 = int.Parse(this.txtb_RandomTime.Text);

                                if (num12 <= this.txtb_Keywords.Lines.Length)

                                {

                                    goto Label_08C7;

                                }

                                MessageBox.Show("插入个数不能小于插入内容栏内项的个数, 请重新输入!");

                            }

                        }

                    }

                    return;

                Label_0747:

                    num8 = random2.Next(3, num10 - 2);

                    if ((str5[num8 - 1] == ' ') && (str5[num8] == ' '))

                    {

                        num9++;

                        num11 = random2.Next(num12 + 1, num12 + 100);

                        str5 = str5.Substring(0, num8) + spin.Spinner(this.txtb_Keywords.Lines[num11 % this.txtb_Keywords.Lines.Length], num11) + str5.Substring(num8);

                    }

                    else if (str5[num8 - 1] == ' ')

                    {

                        if (str5[num8 - 3] != '<')

                        {

                            num9++;

                            num11 = random2.Next(num12 + 1, num12 + 100);

                            str5 = str5.Substring(0, num8) + spin.Spinner(this.txtb_Keywords.Lines[num11 % this.txtb_Keywords.Lines.Length], num11) + " " + str5.Substring(num8);

                        }

                    }

                    else if ((str5[num8 + 1] == ' ') && (str5[num8 - 1] != '<'))

                    {

                        num9++;

                        num11 = random2.Next(num12 + 1, num12 + 100);

                        str5 = str5.Substring(0, num8 + 1) + " " + spin.Spinner(this.txtb_Keywords.Lines[num11 % this.txtb_Keywords.Lines.Length], num11) + str5.Substring(num8 + 1);

                    }

                Label_08C7:

                    if (num9 < num12)

                    {

                        goto Label_0747;

                    }

                    goto Label_0A09;

                Label_08D5:

                    num8 = random2.Next(3, num10 - 2);

                    if ((str5[num8 - 1] == ' ') && (str5[num8] == ' '))

                    {

                        str5 = str5.Substring(0, num8) + spin.Spinner(this.txtb_Keywords.Lines[num9], num8) + str5.Substring(num8);

                        num9++;

                    }

                    else if (str5[num8 - 1] == ' ')

                    {

                        if (str5[num8 - 3] != '<')

                        {

                            str5 = str5.Substring(0, num8) + spin.Spinner(this.txtb_Keywords.Lines[num9], num8) + " " + str5.Substring(num8);

                            num9++;

                        }

                    }

                    else if ((str5[num8 + 1] == ' ') && (str5[num8 - 1] != '<'))

                    {

                        str5 = str5.Substring(0, num8 + 1) + " " + spin.Spinner(this.txtb_Keywords.Lines[num9], num8) + str5.Substring(num8 + 1);

                        num9++;

                    }

                Label_09F5:

                    if (num9 < this.txtb_Keywords.Lines.Length)

                    {

                        goto Label_08D5;

                    }

                Label_0A09:

                    contents = str5;

                    File.AppendAllText(this.txtb_FolderOut.Text + @"\" + info5.Name, contents);

                }

            }

            MessageBox.Show("成功!");

        }

    }

}