https://www.tenpay.com/cgi-bin/v1.0/pay.cgi?sp_id=1203471801&request_text=zC-JXWJnptXKCuezB0YRi4slNyTZ9szxfDw6Oj3v9ijmU0YUxC_ai4eG48jf8xL6rwkmd0IicljgjmeA-isbOwYN2RFceR2smkkToDUtzSfFaF8KhHwkEwTujUK0-H88xnQGfRF8cuiQWUCFfII2lf2dX3FmOJxXqpFLVfwWusBsyfkaUx8Yk-bMaPbHNJ2PbImVLbJe8krOHtrbtJpaOrJ5FRSzVUVdvnvTw73B03r3CFaSkdCaUyoMFqLP4XutkmYUJUevITKrDaq9jUG4tE_z7gvJVYnPY-44HhdtGZD9qM_4Cn83a0VN0GXPsqIpbXBawLJy8WeugMUpgTWQCMVinMsYhz-JHkEhVQdb6pC_n03sDmfAdMaZP_GoEyo1CWg7Mem2xJ0i5Xm9qaQuSI1p7NwOHON-2ukJb8C7_0AbYiLxiTnoFR5o5VQ_Vc9kVmyS4F1jOIv8KYlUJ2z1h3IajLOYeWr0Xz_b-pezvJp4eI_wQQV63qD_FL0BVD3LOKGeffA3hEVD4CZu9z_SCZQ30IhKasMOIYkA2J3M3VZ9_BoV_AcfFSsI68_nvkreF0nUoXQtpdjTVAjTBJ2UbUf7IdY26IBpd_-SFo5z1s0wjwIM9_WERxe7cuGX6LDB sp_id,request_id 这两个参数是怎么回事啊? 两个参数代表什么意思, 
request_id的值是怎么得来的? 在线等待帮助,谢谢