C#------如何判断输入的是否为纯数字
private void Btn_OK_Click(object sender, EventArgs e) { IDormitoryAdminCardService aservice = new DormitoryAdminCardService(); string text = this.CardNoEdit.Text; //判断是否输入的是纯数字 string pattern = "^[0-9]*$"; Regex regex = new Regex(pattern); if (regex.IsMatch(text)) { aservice.AddCard(text); ShowSuccess("添加成功!"); if (SaveEvent != null) { SaveEvent(null, new EventArgs()); } this.Close(); } else { ShowError("请输入数字!"); } }