I really appreciate everybody's warmly help. I am a new comer to perl. I don't fully understand the previous post's answer, so I really want to get help. Here still have some compilation errors.(near $q->end_html) Please assist me again. Thank you very much! 
#!C:/Perl/bin/perl

use strict;
use CGI::Pretty qw( -debug );
use CGI::Carp qw( fatalsToBrowser );

my $q = new CGI;

my $pay = $q->param('payment');
my $pay_text;

if ( $pay eq "discover" )  {
  $pay_text = "Discover Card";
}
elsif ( $pay eq "master" )  {
  $pay_text = "Master Card";
}
elsif ( $pay eq "check" )  {
  $pay_text = "by check";
}
else  {
  $pay_text = "unknown method";
}

print $q->header,

      $q->start_html( -title=>"Welcome",
                      -bgcolor=>"pink"),

      $q->p( "Your name is ", 
             $q->b("name")),

      $q->p({-style=>"text-decoration:underline"},"Your age is ",$q->t
+extfield(-name=>"age")),
                

      $q->p( "Your method of payment is ",
             $q->span({-style=>"color:blue"},$pay_text),
      $q->end_html;

[download]

In reply to Re^2: CGI script to create a HTML document by zhshqzyc
in thread CGI script to create a HTML document by zhshqzyc

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.