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📅 最后修改于: 2022-03-11 14:57:43.641000 🧑 作者: Mango
private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { var regex = new Regex(@"[^a-zA-Z0-9\s]"); if (regex.IsMatch(e.KeyChar.ToString())) { e.Handled = true; } }