UIAlertController* alert = [UIAlertControlleralertControllerWithTitle:@"是否退出当前账号"message:nilpreferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* action1 = [UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction* _Nonnullaction) {
}];
UIAlertAction* action2 = [UIAlertActionactionWithTitle:@"确认"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction* _Nonnullaction) {
DeviceModel*model = [NSStringgetPhoneInfo];
[alert addAction:action1];
[alert addAction:action2];
[selfpresentViewController:alert animated:YEScompletion:nil];
