#include <stdio.h>
#include <stdlib.h>char* UnionStringArray(char* StringArr[],int iArrCount,char* strTarget);int main(int argc, char *argv[])
{
  char* billFields[11] = {"product_id","product_class_id","product_name","product_unit","product_num","product_pym",
                          "product_provider","purchase_date","remark","rec_status","operator"};char select_fields[1000]="";
  
  UnionStringArray(billFields,11,select_fields);
  printf("%s\r\n",select_fields);    
                  
  system("PAUSE");    
  return 0;
}char* UnionStringArray(char* StringArr[],int iArrCount,char* strTarget)
{
   int i;
   for(i=0;i<iArrCount;i++)
   {
      if(i<iArrCount-1)
      {
        strcat(strTarget,"t1.");
        strcat(strTarget,StringArr[i]);
        strcat(strTarget,",");
      }
      else
      {
        strcat(strTarget,"t1.");
        strcat(strTarget,StringArr[i]);
      }
   }
   
   return strTarget;              
}