private void button2_Click(object sender, EventArgs e) { string txt = richTextBox1.Text.Trim().Replace("\n", ""); if (!ValidateService.IsAllNumber(txt)) { MessageBox.Show("包含非数字字符,请认真核对!"); return; } //else if(txt)) //{ // MessageBox.Show("内容为空!"); // return; //} else { int x = txt.Length / 14; for (int i = 0; i < x; i++) { string s = txt.Substring(0, 14); txt = txt.Remove(0, 14); batchList.Add(s); } this.Close(); } }