sap 提供服务

1： https://blog.csdn.net/stone0823/article/details/81661261?utm_source=blogxgwz1

https://blog.csdn.net/stone0823/article/details/71057172

https://help.sap.com/saphelp_nw70/helpdata/en/d6/c62441fa9eaa31e10000000a1550b0/content.htm?no_cache=true