c#抽簽系統的實現示例
一個基於c#的簡單抽簽系統,可以重新導入數據,清空數據。
代碼簡單,比較適合初學者。
導入數據時會創建一個txt文本,可以在裡面看到輸入
private void button1_Click(object sender, EventArgs e) //確定按鈕 { string path = System.IO.Directory.GetCurrentDirectory() + "//name.txt"; Random rand = new Random(System.Guid.NewGuid().GetHashCode()); string[] name = File.ReadAllLines(path); if (name.Length == 0) { MessageBox.Show("導入數據不能為空!"); } else { textBox1.Text = name[rand.Next(0, name.Length)]; //抽簽 textBox1.ForeColor = Color.Black; } } private void button3_Click(object sender, EventArgs e) //導入數據 { string qkong = ""; //清空name.TXT string CurDir11 = System.AppDomain.CurrentDomain.BaseDirectory + @"name.txt.txt"; String filePath11 = CurDir11; System.IO.StreamWriter file11 = new System.IO.StreamWriter(filePath11, false); / file11.Write(qkong); file11.Close(); file11.Dispose(); string result = textBox2.Text.Trim(); string d = System.AppDomain.CurrentDomain.BaseDirectory + @"name.txt"; String filePath = d; System.IO.StreamWriter file1 = new System.IO.StreamWriter(filePath, false); file1.Write(result); file1.Close(); file1.Dispose(); MessageBox.Show("導入成功"); } private void button4_Click(object sender, EventArgs e) //清空數據 { string qkong = ""; string s = System.AppDomain.CurrentDomain.BaseDirectory + @"name.txt.txt"; String filePath11 = s; System.IO.StreamWriter file11 = new System.IO.StreamWriter(filePath11, false); file11.Write(qkong); file11.Close(); file11.Dispose(); textBox2.Text = ""; } private void textBox2_TextChanged(object sender, EventArgs e) { this.textBox2.Multiline = true; }
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