摘要：
select utl_raw.cast_to_varchar2('C4e3') from dual --你好select utl_raw.cast_to_raw('你好') from dual --C4e3--asc码和字符之间的转换 阅读全文
摘要：
import java.net.URLDecoder;import java.net.URLEncoder;class Noname1{ public static void main(String[] args) throws java.io.UnsupportedEncodingException {String aa = "%D2%A6%D0%A2%BB%D4"; //姚孝辉URLDecoder url = new URLDecoder();String bb =new URLDecoder().decode(aa,"GB2312");String 阅读全文