首先要看服务器错误日志
On Mon, 2 Nov 2009 20:22:52 -0600 chunjiang he <[email protected]> wrote: > 我用GD画图的时候，能不能读取一个文件中的数据然后画图呢，我这样做了，但是出现internal server error错误。 > 如果不从文件中读取，而是把数据放在程序中，就没有问题，请大家指教 > > 下面是我从文件中读取数据然后画图的程序： > > #!d:/perl/bin/perl > > use GD; > > print "Content-type: image/png\n\n"; > > my $file="test.txt"; > > sub min{ > my @a...@_; > my $s=pop @a;; > @a=map {$_-$s} @a; > return @a; > > } > > my @new; > > open(FILE,$file) or die; > while(my $line=<FILE>){ > chomp $line; > my @num=split /,/$dd[4]; > push @new,@num; > } > > close(FILE); > > @new=sort {$a<=>$b} @new; > > my $cha=$new[-1]-$new[0]; > > my $bei=$cha/700; > #my $bei=int ($cha/600); > my $size=$cha/$bei; > > # create a new image 图片大小按压缩之后X1.1倍 > my $im = new GD::Image($size*1.1+100,100); > > # allocate some colors > my $white = $im->colorAllocate(255,255,255); > my $black = $im->colorAllocate(0,0,0); > my $red = $im->colorAllocate(255,0,0); > my $blue = $im->colorAllocate(0,0,255); > > # make the background transparent and interlaced > $im->transparent($white); > $im->interlaced('true'); > > my $one=0; > my $two=20; > my $three=10; > my $four=5; > > open(FILE,$file) or die; > while(my $line=<FILE>){ > chomp $line; > my @dd=split /\t/,$line; > my $name=$dd[1]; > my @num=split /,/,$dd[4]; > @num=sort {$a<=>$b} @num; > > @num= &min(@num,$new[0]); ##传递参数给子程序的时候，会将所有参数存为一个数组 @_ > > for(my $i=0;$i<@num;){ > > $im->rectangle($num[$i]/$bei+100,$one,$num[$i+1]/$bei+100,$two, > $black); > > $im->fill($num[$i]/$bei+100+($num[$i+1]/$bei-$num[$i]/$bei)/2,$three, > $black); > $i=$i+2; > } > for(my $i=1;$i<@num-1;){ > > $im->line($num[$i]/$bei+100,$three,$num[$i+1]/$bei+100,$three, > $black); > $i=$i+2; > } > > $im->string(gdLargeFont,0,$four,$name,$black); > > # make sure we are writing to a binary stream > binmode STDOUT; > > # Convert the image to PNG and print it on standard output > print $im->png; > > $one=$one+40; > $two=$two+40; > $three=$three+40; > $four=$four+35; > > } > > close(FILE); > > > -- --- --~--~---------~--~----~------------~-------~--~----~ 您收到此信息是由于您订阅了 Google 论坛“PerlChina Mongers 讨论组”论坛。 要在此论坛发帖，请发电子邮件到 [email protected] 要退订此论坛，请发邮件至 [email protected] 更多选项，请通过 http://groups.google.com/group/perlchina?hl=zh-CN 访问该论坛 -~----------~----~----~----~------~----~------~--~---
