private void button3_Click(object sender, EventArgs e)
{
SystemPowerStatus sps = new SystemPowerStatus();
//SystemPowerStatus sps;
GetSystemPowerStatus(ref sps);
richTextBox1.AppendText("交流电源状态：" + getACLineStr(sps.ACLineStatus) + "\r\n");
richTextBox1.AppendText("电池充电状态：" + getBatteryFlag(sps.batteryFlag) + "\r\n");
richTextBox1.AppendText("电量百分比：" + sps.batteryLifePercent.ToString() + "\r\n");
richTextBox1.AppendText("秒为单位的电池剩余电量：" + sps.batteryLifeTime.ToString() + "\r\n");
richTextBox1.AppendText("秒为单位的电池充满电的电量：" + sps.batteryFullLifeTime.ToString() + "\r\n");
}
public static extern bool GetSystemPowerStatus(ref SystemPowerStatus systemPowerStatus);
