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    1¡¢xml:        ÄÜÈÏʶԪËØ¡¢ÊôÐÔºÍÖµ
   
    2¡¢xpath:    Ñ°Ö·ÓïÑÔ£¬ÀàËÆwindowsĿ¼µÄ²éÕÒ(ûÓùýdirÃüÁîµÄ»°¾ÍÈ¥Ãæ±Ú)
               
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    3¡¢xquery:    »ùÓÚxpath±êµÄ×¼²éѯÓïÑÔ£¬sqlserver xquery°üº¬ÈçϺ¯Êý
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substring(convert(char(10),auth,120),9,2)+'ÈÕ',
convert(char(4),appr,120)+'Äê'+
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substring(convert(char(10),appr,120),9,2)+'ÈÕ'
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import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
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