[translation]QT: why delete() delete everything in QlineText?

http://www.qtcentre.org/threads/45795-Deleting-characters-in-QLineEdit-widget

1. void BackspaceKeyNotification()
2. {
3. if(qlineedit1->hasFocus())
4. {
5. qlineedit1->backspace();
6. }
7. else if(qlineedit2->hasFocus())
8. {
9. qlineedit2->backspace();
10. }
11. }

이런식으로 작성했는데 왜 backspace() 함수를 쓰면 다 지워지나요 ?

A:

this is most probably because on a change you select all text on the line edit. Thus the whole is being deleted when you call QLineEdit::backspase() like the documentation says. So before calling backspace() make sure no text is selected and the cursor is at the end.

그건 전체에 지정해서 그렇습니다. 꼭 아무것도 선택되지 않고, 커서가 맨뒤에있게 하세요