=info
    腾讯云 印刷体图片识别示例
    523066680/vicyang
    2018-12
=cut

use LWP::UserAgent;
use Encode;
use utf8;
use MIME::Base64;
use Digest::HMAC_SHA1 qw(hmac_sha1 hmac_sha1_hex);

STDOUT->autoflush(1);

my $s = sign();
my $ua = LWP::UserAgent->new();

my $json = '{"appid":"1254154701", "url":"http://www.code-by.org/styles/prosilver/theme/images/site_logo.png"}';

my @header = (
    'Authorization' => $s,
    'Host' => 'recognition.image.myqcloud.com',
    'Content-Type' => 'application/json',
);

#$ua->default_header(  @header );

my $res = $ua->post(
        'http://recognition.image.myqcloud.com/ocr/general',
        @header,
        'Content' => $json,
    );

print encode('gbk', decode('utf8', $res->content()));

sub sign
{
    my $appid = "APPID";
    my $secret_id = "Secret_id";
    my $secret_key = "Secret_key";
    my $current = time();
    my $rdm = int( rand(10000) + 10000 );
    my $userid = 0;

    my @list = (
            [ 'a' => $appid ],
            [ 'k' => $secret_id ],
            [ 'e' => $current + 100 ],
            [ 't' => $current ],
            [ 'r' => $rdm ],
            [ 'u' => $userid ],
            [ 'f' => '' ],
        );

    $srcStr = join("", map { $_->[0] ."=". $_->[1] ."&" } @list );
    $srcStr =~s/&$//;

    # 生成签名，最右双引号表示不换行
    my $signStr = encode_base64( hmac_sha1( $srcStr, $secret_key) .$srcStr, "" );

    printf "%s\n", $srcStr;
    return $signStr;
}
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{"code":0,"message":"OK","data":{"class":[],"angle":0.0,"items":[{"itemcoord":{"x":7,"y":20,"width":135,"height":13},"words":[{"character":"P","confidence":0.8444133400917053},{"character":"","confidence":1.0},{"character":"r","confidence":0.6299126744270325},{"character":"o","confidence":0.9383134841918944},{"character":"g","confidence":0.945770502090454},{"character":"r","confidence":0.9737642407417296},{"character":"","confidence":1.0},{"character":"a","confidence":0.9953640699386596},{"character":"","confidence":1.0},{"character":"m","confidence":0.9897430539131165},{"character":"m","confidence":0.9669923186302184},{"character":"i","confidence":0.9982288479804992},{"character":"n","confidence":0.999599277973175},{"character":"g","confidence":0.9985522627830504}],"itemstring":"P rogr a mming"}],"session_id":""}}
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22
第1章
1.设置好工具集所要求的环境变量。
2.输入一个 命令，告诉编译器编译和链接程序。
用于设置环境变量的脚本程序如表1-5所示。这些脚本程序位于命令行工具的相同目录中
(见表1-3所示)。如果你所用的工具集没有出现在表1-5中，那么你就可以跳过第1步。
否则，如果你使用的是Windows系统，则运行相应的脚本程序;如果使用的是Unix系
统，则编写相应的脚本程序。
表1-5命令行工具需要的用于设置环境变量的脚本
工具集
脚本
Visual C++
vcvars32. bat
Intel (Windows)
iclvars. bat
Intel (Linux)
iccvars.sh或iccvars. csh
Metrowerks (Mac OS X)
mwvars.sh或mwvars. csh
Metrowerks (Windows)
cwenv. bat
Comeau
与后端的工具集相同
编译和链接hello.cpp的命令如表1-6所示。要使这些命令正确运行，应使当前目录是含
有hello.cpp的目录，且包含命令行编译器的目录应出现在PATH环境变量中。如果已在
第1步中运行了脚本程序，那么后面的条件将自动满足。也有可能在你安装工具集时,安
装程序就把包含命令行工具的目录添加到PATH中了。如果不是这样，你就得如表1-7所
示的那样把目录添加到PATH中，或在命令行中指定完整的路径名。
表1-6只用一步就可完成hello.cpp编译和链接的命令
工具集
命令行
GCC 
g++ -0 hello hello.cpp
Visual C++
cl -nologo -EHsc -GR -Zc:forScope -Zc:wchar_ _t -Fehello hello. cpp
Intel (Windows)
icl -nologo -EHsc -GR -Zc:forScope -Zc:wchar_ _I -Fehello hello.cpp
Intel (Linux)
icpc -0 hello hello. cpp
Metrowerks
mwcc -wchar_ _I on -cwd include -0 hello hello.cpp
Comeau
como -0 hello hello. cpp
Borland
bcc32 -q -ehello hello.cpp
Digital Mars
dmc -Ae -Ar -I<dmcroot>/stlport/stlport -o hello hello.cpp
www.TopSage.com
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