private void button2_Click(object sender, EventArgs e)
{
SqListClass L4 = new SqListClass();
Merge3(ref L4);
textBox4.Text = L4.DispList();
}
private void comboBox1_SelectedIndexChanged_1(object sender, EventArgs e)
{
int k = comboBox1.SelectedIndex; //使用combobox中的索引号来判断要执行什么操作
if (k == 0)
{
textBox2.Enabled = false;
label3.Text = "长度";
textBox3.Text = L.ListLength().ToString();
}
else if (k == 1)
{
textBox2.Enabled = true;
label3.Text = "序号";
label4.Text = "元素";
Findele();
}
else if (k == 2)
{
textBox2.Enabled = true;
label3.Text = "元素";
label4.Text = "序号";
Findnum();
}
else if (k == 3)
{
textBox2.Enabled = true;
label3.Text = "序号";
label4.Text = "元素";
Insert();
}
else if (k == 4)
{
textBox2.Enabled = true;
string text3 = textBox3.Text.ToString();
string text2 = textBox2.Text.ToString();
label3.Text = "按序号";
label4.Text = "按元素";
if (text3 != "" && text2 == "")
{
Deletebynum();
}
else if (text3 == "" && text2 != "")
{
Deletebyele(text2);
}
}
else if (k == 5)
{
textBox2.Enabled = true;
SqListClass L1 = new SqListClass();
SqListClass L2 = new SqListClass();
Split(ref L1, ref L2);
label3.Text = "奇数序号的元素";
label4.Text = "偶数序号的元素";
textBox3.Text = L1.DispList();
textBox2.Text = L2.DispList();
}
}
private void Insert() //插入元素
{
int i;
string x, str;
if (textBox3.Text.Trim() == "")
{
label2.Text = "必须输入序号";
}
else
{
try
{
i = Convert.ToInt16(textBox3.Text.Trim());
}
catch (Exception err)
{
label2.Text = "输入的序号是错误的";
return;
}
x = textBox2.Text.Trim();
if (x == "")
{
label2.Text = "操作提示：必须输入元素值";
}
else
{
if (L.ListInsert(i, x))
{
str = L.DispList();
textBox4.Text = str;
label2.Text = "操作提示：成功插入元素" + x;
}
else
{
label2.Text = "操作提示：输入的序号" + i.ToString() + "错误";
textBox4.Text = "";
}
}
}
}