SELECT * FROM USER WHERE id=1 OR id=10 OR id=16

                             SELECT * FROM USER WHERE id IN(1,10,27)

    	
    		
     			
      
       				user.sex=#{userCustom.sex}						
       
        				user.username LIKE '%${userCustom.username}%'						
        				
         				
         				
         
                             id=#{id}        另外一种方法 
          
                  select * from user        
           
                   
                   
            
                    
             
                         #{item.id}