总是错误提示：“ list index out of bounds(0) ”为什么?

[nonheartboy]

这是在执行这样的操作后出现的提示:

AnsiString sql="select count(*) from biao1"
adoquery1->close();
adoquery1->sql->clear();
adoquery1->sql->add(aql);
adoquery1->execsql;
int k;
k=adoquery1->fields->fields[0]->AsInteger;
就是在执行这样的赋值语句时出现的问题，
什么原因呢》如何解决？

[netsys2]

AnsiString sql="select count(*) as ALLCOUNT from biao1"

[s98231106]

AnsiString sql ="select count(*) as ALLCOUNT from biao1"
adoquery1->close();
adoquery1->sql->clear();
adoquery1->sql->add(aql);
adoquery1->execsql;

k = adoquery1->fieldbyname("ALLCOUNT")->AsInteger;

[meCAD]

计数器越界吧

[gfh_79_0]

AnsiString sql="select count(*) from biao1"
adoquery1->close();
adoquery1->sql->clear();
adoquery1->sql->add(aql);
adoquery1->execsql;//把这句改为 adoquery1->Active=true ;

int k;