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简单的学生信息管理系统,初学者看看。。
private void button4_Click(object sender, EventArgs e)
{
int k = 0;
for (int i = 0; i < s.stud.dt.Count; i++)
{
if (s.stud.dt[i].num == textBox4.Text)
{
s.stud.dt[i].name = textBox5.Text;
s.stud.dt[i].dept = comboBox2.SelectedItem.ToString();
s.stud.dt[i].sex = radioButton3.Checked ? "男" : "女";
k = 1;
}
}
if (k == 1)
{
if (s.stud.dt.Count != 0)
{
string strin = s.stud.dt[0].num + " " + s.stud.dt[0].name + " " + s.stud.dt[0].dept + " " + s.stud.dt[0].sex;
File.WriteAllText("D://Student.txt", strin + "\r\n");
for (int i = 1; i < s.stud.dt.Count - 1; i++)
{
string str = s.stud.dt[i].num + " " + s.stud.dt[i].name + " " + s.stud.dt[i].dept + " " + s.stud.dt[i].sex;
File.AppendAllText("D://Student.txt", str + "\r\n");
}
string stri = s.stud.dt[s.stud.dt.Count - 1].num + " " + s.stud.dt[s.stud.dt.Count - 1].name + " " + s.stud.dt[s.stud.dt.Count - 1].dept + " " + s.stud.dt[s.stud.dt.Count - 1].sex;
File.AppendAllText("D://Student.txt", stri);
}
else
File.WriteAllText("D://Student.txt", "");
MessageBox.Show("修改成功!");
}
else MessageBox.Show("修改失败!");
textBox4.Text = "";
textBox5.Text = "";
textBox6.Text = "";
}
private void button5_Click(object sender, EventArgs e)
{
textBox4.Text = "";
textBox5.Text = "";
textBox6.Text = "";
}
private void button7_Click(object sender, EventArgs e)
{
richTextBox1.Text = "";
for (int i = 0; i < s.stud.dt.Count; i++)
{
richTextBox1.Text += s.stud.dt[i].num +" "+ s.stud.dt[i].name+" " + s.stud.dt[i].sex +" "+ s.stud.dt[i].dept + "\n";
}
}
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
}
private void button6_Click(object sender, EventArgs e)
{
richTextBox1.Text = "";
string num1 = textBox7.Text;
int ss=1;
for (int i = 0; i < s.stud.dt.Count; i++)
{
if (num1 == s.stud.dt[i].num)
{
ss=0;
richTextBox1.Text += s.stud.dt[i].num + " " + s.stud.dt[i].name + " " + s.stud.dt[i].sex + " " + s.stud.dt[i].dept + "\n";
}
}
if (ss == 1)
richTextBox1.Text = "该用户不存在";
}
2011-06-07
Spring4 MVC 发送带参数的get请求,返回404
2014-12-17
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