接口分需要验证和不需要验证：
需要验证：
<?php
require_once 'http.class.php' ;
$http = new Http(); // 实例化对象
$data = array();
$data['api_key']='2640d9828b0a596aa5b8ced17478d11d';
$api_secret = '34075ffdf5d47037dca7f657058d0b19';
$data['timestamp']=time();
$data['nonce']=rand();
$tmpArr = array($api_secret, $data['timestamp'], $data['nonce']);
sort($tmpArr, SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
$data['signature']=$tmpStr;
$data['ordertype']=1;
$data['platform']='pc';
$result = $http->post('http://demo.projectapi.com/Qiandao/my_order', $data );
print_r($result);