例子一、將字符串轉(zhuǎn)為變量名
string str = "spp";
public string spp = "very good";
private void button1_Click(object sender, EventArgs e)
{
    MessageBox.Show(this.GetType().GetField(str).GetValue(this).ToString());
}

例子二、通過字符串給變量賦值
public string gisoracle = "ok";
private void button2_Click(object sender, EventArgs e)
{
    //通過字符串獲得變量值
    MessageBox.Show(this.GetType().GetField("gisoracle").GetValue(this).ToString());
    //通過給變量賦值
    this.GetType().GetField("gisoracle").SetValue(this, "gisoracle@126.com");
    //新的值
    MessageBox.Show(this.GetType().GetField("gisoracle").GetValue(this).ToString());
}