//致命错误 private void button13_Click(object sender, EventArgs e) { if (string.IsNullOrWhiteSpace(this.textBox16.Text)) { MessageBox.Show("错误信息不能为空"); return; } int content = coolQApiForTest.SetFatal(this.textBox16.Text); textBox4.Text = "" + content; MessageBox.Show("执行完成"); }