- (void)initcheckversionwithdata:(nsdata *)data
    {
    nsdata *xmldata = data;
    nsstring *result = [[nsstring alloc] initwithdata:xmldata encoding:nsutf8stringencoding];
    nslog(@result:%@,result);
    getcheckversion *parser = [[getcheckversion alloc] initwithxmldata:xmldata];
    [parser parse];
    nsstring *status = parser.tempresult.status;
    nslog(@status:%@,status);
    if ([@201 isequaltostring:status]) {
    nslog(@版本不需要更新，ok);
    }
    else if ([@200 isequaltostring:status]) {
    uialertview * alertview = [[uialertview alloc] initwithtitle:@提示 message:@是否更新版本 delegate:self cancelbuttontitle:@取消 otherbuttontitles:@確定, nil];
    [alertview show];
    [alertview release];
    alertview = nil;
    }
    }
    - (void)alertview:(uialertview *)alertview clickedbuttonatindex:(nsinteger)buttonindex
    {
    nsstring *msg = [[nsstring alloc] initwithformat:@您點擊的是第%d個按鈕!,buttonindex];
    nslog(@msg:%@,msg);
    if (buttonindex == 0) {
    return;
    }else if(buttonindex == 1){
    [httpclient getupdateversion];
    }
    }