[發問] 做下拉式選單,點選時不得選重複值,如何驗證
|
|
|
julie
|
|
|
|
|
|
|
|
|
|
|
|
|
julie
|
|
|
|
|
學海無涯_不恥下問
|
|
|
|
|
julie
|
|
|
|
|
|
|
|
|
|
|
|
|
julie
|
|
|
|
|
學海無涯_不恥下問
|
|