---

1.关联按钮上的Key事件按钮上的keypress，keydown，keyup事件随便一个即可private void textBox1_KeyDown(object sender, KeyEventArgs e){if (e.KeyCode == Keys.Enter){this.textBox2.Focus();}}2.窗体上的事件private void textBox2_KeyPress(object sender, KeyPressEventArgs e){if(e.KeyChar==(char)Keys.Enter){this.button1_Click(sender, e);}}

可以设置这两个,窗体登录和退出,将他们两个设置成enter和Ese

private void Form2_Load(object sender, EventArgs e){Form_Login.AcceptButton = btnLogin;//btnLogin是登陆按钮Form_Login.CancelButton = btnExit;//btnExit是退出按钮}