python from alipay import AliPay alipay = AliPay( appid="your_appid", app_notify_url="http://www.example.com/notify", app_private_key_path="your_private_key.pem", alipay_public_key_path="alipay_public_key.pem", sign_type="RSA2", ) order_string = alipay.api_alipay_trade_page_pay( out_trade_no="2018000001", total_amount=0.01, return_url="http://www.example.com/success", ) pay_url = "https://openapi.alipay.com/gateway.do?" + order_string print(pay_url)