private void button_chgWifi_Click(object sender, EventArgs e) { if (button_chgWifi.Text == "修改") { textBox_wifi.Enabled = true; button_chgWifi.Text = "确认"; } else { textBox_wifi.Enabled = false; button_chgWifi.Text = "修改"; Global.setWiFi(textBox_wifi.Text); } }