我为这篇长篇文章提前道歉,但有必要说明发生了什么.
我一直在研究一款适用于1.6模拟器的应用程序,但我的G1上却有炸弹.
这是摄影师的活动:
public class Photographer extends Activity {
private SurfaceView preview = null;
private SurfaceHolder previewHolder = null;
private Camera camera = null;
public static final int IMAGE_HEIGHT = 320;
public static final int IMAGE_WIDTH = 480;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.photographer);
preview = (SurfaceView)findViewById(R.id.preview);
previewHolder = preview.getHolder();
previewHolder.addCallback(surfaceCallback);
previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
private void takePicture() {
camera.stopPreview();
camera.takePicture(null, null, photoCallback);
}
SurfaceHolder.Callback surfaceCallback = new SurfaceHolder.Callback() {
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
try { …我承认自从我使用Perl已经有一段时间了,但这让我很难过.
这是问题所在:
#!/usr/bin/perl
use CGI::Carp qw(fatalsToBrowser);
use DBI;
print "Content-type: text/html\n\n";
print "<html><head><title></title></head></body>";
my $login = "admin@xxxxx.com";
my $dbfile = "/var/www/shopsite-data/shopsite_db";
my $sql = qq`SELECT ss_OrderID FROM ss_ORDER WHERE ss_Email=?`;
my $dbh = DBI->connect("dbi:SQLite:dbname=$dbfile", "", "") || die "Cannot connect: $DBI::errstr";
my $sth = $dbh->prepare($sql);
$sth->execute($login) or die $sth->errstr();
while (my @result = $sth->fetchrow_array()) {
print "OrderID: $result[0]<br />";
}
$sth->finish;
print "</body>";
print "</html>";
$dbh->disconnect;
什么都不返回,但是当使用相同的查询使用sqlite3登录时,我得到了一个结果集.当我更改查询时,我也得到一个结果集
my $sql = qq`SELECT ss_OrderID FROM ss_ORDER WHERE ss_Email=?`;
至
my $sql = …