怎么做?我花了 20 分钟搜索它,但找到了如何查询命令,但是有问题。我使用System.Data.SQLite
try 
{ 
    SQLiteConnection cnn = new SQLiteConnection(label2.Text); 
    cnn.Open();//Error is here! 
    SQLiteCommand cmd = cnn.CreateCommand(); 
    cmd.CommandText = textBox1.Text; 
    cmd.ExecuteNonQuery(); MessageBox.Show("Query is good!"); 
    cnn.Close();
} 
catch (SQLiteException ee) 
{ 
    MessageBox.Show(ee.Message);
}