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¼ÙÉèÎÒÃÇÐèÒª¶ÔËĸö×Ö¶ÎID,Name,Sex,Age ×éºÏ²éѯ
´Ë·½·¨ÒªÔÚÊý¾Ý¿â±íÖÐÅäÖÃÒ»¸öÄÚÈÝΪ¿ÕµÄ×Ö¶ÎBZ¡£
//½«²éѯÌõ¼þÏàÓ¦µÄ¿Ø¼þµÄ¸³Öµ
String ID=Textbox1.Text;
String Name=Textbox2.Text;
String Sex=Combobox1.Text;
String Age=Textbox3.Text;

//¶¨ÒåÁ½¸öÊý×飬һ¸öÓÃÀ´´æ´¢×Ö¶ÎÃû£¬Ò»¸öÓÃÀ´´æ´¢×Ö¶ÎÖµ
String[] zdName={¡°ID¡±,¡±Name¡±,¡±Sex¡±,¡±Age¡±};
String[] zdz={ID,Name,Sex,Age};
//¶¨ÒåÒ»¸ö×Ö·û´®±äÁ¿ÓÃÀ´Ð´½øselectÓï¾ä
String  selectString;

Int i=0;
For (i=0;i<4;i++)
{if(zdz==¡±¡±)
zdName=¡±BZ is null¡±;  //½«Îª¿ÕµÄ²éѯÌõ¼þÉèÖÃΪһ¸öËùÓмǼ¶¼ÓеÄÌõ¼þ£»
}
Else
{
zdName=String.format({0}=¡¯{1}¡¯,zdName,zdz);
}
selectString=String.format({0} And {1} And {2} And {3},zdName[0], zdName[1], zdName[2], zdName[3]);


select * from where selectString;

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