http://www.convertstring.com/zh_CN/EncodeDecode/UrlDecode

解码前：

http://epub.cnki.net/KNS/brief/result.aspx?ConfigFile=SCDB.xml&DBViewType=FullText&dbCatalog=%E4%B8%AD%E5%9B%BD%E5%AD%A6%E6%9C%AF%E6%96%87%E7%8C%AE%E7%BD%91%E7%BB%9C%E5%87%BA%E7%89%88%E6%80%BB%E5%BA%93&dbPrefix=SCDB&NaviField=%E4%B8%93%E9%A2%98%E5%AD%90%E6%A0%8F%E7%9B%AE%E4%BB%A3%E7%A0%81&pagename=ASP.brief_result_aspx&research=off&SourceTypeCode=undefined&action=&db_value=CJFQ%2CCDFD%2CCMFD%2CCMZD%2CCPFD%2CCCND%2CSCPD%2CSCSF%2CSCHF%2CSOSD%2CSNAD%2CSTJD%2CSESD&s=1&orderby=relevant&pp_extension=false&txt_1_relation=%23CNKI_AND&txt_1_sel=%E9%A2%98%E5%90%8D&txt_1_special1=%3D&txt_3_logical=and&txt_3_relation=%23CNKI_AND&txt_3_sel=%E4%BD%9C%E8%80%85&txt_3_special1=%3D&txt_4_logical=and&txt_4_relation=%23CNKI_AND&txt_4_sel=%E6%9C%BA%E6%9E%84%2C%E5%8D%95%E4%BD%8D%2C%E5%AD%A6%E4%BD%8D%E6%8E%88%E4%BA%88%E5%8D%95%E4%BD%8D%2C%E4%BD%9C%E8%80%85%E6%9C%BA%E6%9E%84&txt_4_special1=%3D&txt_extension=xls&__=&publishdate_from=2000-01-01&publishdate_to=2010-12-31&txt_1_value1=&txt_3_value1=%E5%8D%97%E5%87%AF&txt_4_value1=&

解码后：

http://epub.cnki.net/KNS/brief/result.aspx?ConfigFile=SCDB.xml&DBViewType=FullText&dbCatalog=中国学术文献网络出版总库&dbPrefix=SCDB&NaviField=专题子栏目代码&pagename=ASP.brief_result_aspx&research=off&SourceTypeCode=undefined&action=&db_value=CJFQ,CDFD,CMFD,CMZD,CPFD,CCND,SCPD,SCSF,SCHF,SOSD,SNAD,STJD,SESD&s=1&orderby=relevant&pp_extension=false&txt_1_relation=#CNKI_AND&txt_1_sel=题名&txt_1_special1==&txt_3_logical=and&txt_3_relation=#CNKI_AND&txt_3_sel=作者&txt_3_special1==&txt_4_logical=and&txt_4_relation=#CNKI_AND&txt_4_sel=机构,单位,学位授予单位,作者机构&txt_4_special1==&txt_extension=xls&__=&publishdate_from=2000-01-01&publishdate_to=2010-12-31&txt_1_value1=&txt_3_value1=南凯&txt_4_value1=&