下面这段内容:
"<?xml version="1.0" encoding="utf-8"?>
<uploadResult xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://tempuri.org/">
  <IsSuccess>true</IsSuccess>
  <FileSavePath>E:\ceshi\UserFiles\wx41f139a7128dd7ea.o6zAJs6lmcL-5-PjOPxjBxyOI_ys.DlHPAamrxGWf1e88b45a67fb9aa7ca0edc49fa87cde2.jpg</FileSavePath>
</uploadResult>"想获取<FileSavePath></FileSavePath>中的文件名内容,不需要路径,即字符串函数返回“wx41f139a7128dd7ea.o6zAJs6lmcL-5-PjOPxjBxyOI_ys.DlHPAamrxGWf1e88b45a67fb9aa7ca0edc49fa87cde2.jpg”最好写成函数,参数为整个字符串内容,返回文件名