客户paypal使用信用卡付款结账，无需以html形式登录

我已经创建了下面的代码，其中包含一个表单，以便签出paypal

<form action="https://www.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-9UB86200PA2976623" method="post"><input type="hidden" name="cmd" value="_xclick"><input type="hidden" name="business" value="seller@designerfotos.com"><input type="hidden" name="item_name" value="Memorex 256MB Memory Stick"><input type="hidden" name="item_number" value="MEM32507725"><input type="hidden" name="amount" value="3"><input type="hidden" name="tax" value="1"><input type="hidden" name="quantity" value="1"><input type="hidden" name="currency_code" value="USD"><input type="hidden" name="SOLUTIONTYPE" value="=Sole"><input type="hidden" name="LANDINGPAGE" value="=Billing"><!-- Enable override of buyers's address stored with PayPal . --><input type="hidden" name="address_override" value="1"><!-- Set variables that override the address stored with PayPal. --><input type="hidden" name="first_name" value="John"><input type="hidden" name="last_name" value="Doe"><input type="hidden" name="address1" value="345 Lark Ave"><input type="hidden" name="city" value="San Jose"><input type="hidden" name="state" value="CA"><input type="hidden" name="zip" value="95121"><input type="hidden" name="country" value="US"><input type="image" name="submit" src="https://www.paypalobjects.com/en_US/i/btn/btn_buynow_LG.gif" alt="PayPal - The safer, easier way to pay online"></form>

但是，我发现以下错误：

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您的代码无效。快速签出应该从API中完成。html中没有这样的代码，但可以实现快速签出