mod_perl输出的奇怪的http响应头

S: xp + apache 2.0.59 + mod_perl2

因为我在代码里连续
print "Cache-Control: no-store, no-cache\n";	
print "Content-type: text/html;charset=gbk\n\n";

最终发现是在这之前有这一句， $| = 1; 这是说立刻输出给客户的浏览器，所以2个头部就不能并存啦。


HTTP/1.1 200 OK
Date: Thu, 05 Apr 2007 01:41:33 GMT
Server: Apache/2.0.59 (Win32) PHP/5.2.0 SVN/1.4.2 DAV/2 mod_perl/2.0.3 Perl/v5.8.8
Cache-Control: no-store, no-cache
_1_2eduote_2enet_script_perl_upload_2ecgi;sub handler {local $0 = 'F: /web/1.duote.net/script/perl/upload.cgi';use warnings;
Keep-Alive: timeout=15, max=95
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/plain

1a
Content-type: text/plain
10
328293|3188306|1
0