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//这个是组件类
public SmsClientClass sms = null;
private void Form1_Load(object sender, EventArgs e) {
this.btnLogin.Enabled = false;
this.btnBalance.Enabled = false;
sms = new SmsClientClass();
//这里不会报错
sms.OnConnect += new ISmsClientEvents_OnConnectEventHandler(onConnect);
//这里就会出错(异常来自 HRESULT:0x80040202)
//如果注释了上面的,这句就没错下句就会抱这个错,好像就能用一个事件
sms.OnLoginAccept += new ISmsClientEvents_OnLoginAcceptEventHandler(onLoginResp);
sms.OnUserInfoAck += new ISmsClientEvents_OnUserInfoAckEventHandler(OnUserInfoAck);
sms.OnSmsBatchAck += new ISmsClientEvents_OnSmsBatchAckEventHandler(onSendAck);
}