Введение в технологию программирования. Ч.1. Среда объектно-ориентированного программирования Delphi. Коржов Е.Н - 61 стр.

UptoLike

ВУЗ: 

ВГУ | Воронеж

Составители: 

Рубрика: 

Ɋɢɫ. 3.4.4. Ɉɤɧɨ ɪɚɛɨɬɚɸɳɟɣ ɩɪɨɝɪɚɦɦɵ
1.6. Ɉɛɳɟɟ ɫɜɨɣɫɬɜɨ ɤɨɦɩɨɧɟɧɬɨɜ Hint
ȼɫɟ ɜɢɞɢɦɵɟ ɷɥɟɦɟɧɬɵ ɢɦɟɸɬ ɫɜɨɣɫɬɜɚ Hint: String ɢ ShowHint:
Boolean, ɪɟɝɭɥɢɪɭɸɳɢɟ ɩɨɹɜɥɟɧɢɟ ɢ ɫɨɞɟɪɠɚɧɢɟ ɹɪɥɵɱɤɚ – ɧɟɛɨɥɶɲɨɝɨ
ɫɩɪɚɜɨɱɧɨɝɨ ɨɤɧɚ ɜɨɡɥɟ ɷɥɟɦɟɧɬɚ, ɧɚ ɤɨɬɨɪɨɦ ɨɫɬɚɧɨɜɢɥɫɹ ɤɭɪɫɨɪ.
1. ȼ ɫɜɨɣɫɬɜɨ Hint ɞɥɹ ɩɚɧɟɥɢ Panel1 ɜɜɟɞɢɬɟ ɬɟɤɫɬ: «ɗɬɭ ɩɚɧɟɥɶ
ɦɨɠɧɨ ɩɟɪɟɦɟɳɚɬɶ».
2. ɋɜɨɣɫɬɜɭ ShowHint ɡɚɞɚɣɬɟ ɡɧɚɱɟɧɢɟ True.
3. Ɉɫɭɳɟɫɬɜɢɬɟ ɩɪɨɝɨɧ ɩɪɨɝɪɚɦɦɵ ɢ ɭɛɟɞɢɬɟɫɶ ɜ ɬɨɦ, ɱɬɨ ɩɪɢ ɨɫ-
ɬɚɧɨɜɤɟ ɤɭɪɫɨɪɚ ɧɚɞ ɤɨɦɩɨɧɟɧɬɨɦ Panel1 «ɜɫɩɥɵɜɚɟɬ» Hint.
2. ɋɚɦɨɫɬɨɹɬɟɥɶɧɚɹ ɪɚɛɨɬɚ
Ɂɚɞɚɧɢɟ. ɋɧɚɛɞɢɬɟ ɫɩɪɚɜɨɱɧɨɣ ɢɧɮɨɪɦɚɰɢɟɣ ɤɨɦɩɨɧɟɧɬɵ ɜɚɲɟɝɨ
ɩɪɢɥɨɠɟɧɢɹ, ɢɫɩɨɥɶɡɭɹ ɫɜɨɣɫɬɜɚ Hint ɢ ShowHint. ɇɚ ɝɥɚɜɧɨɣ ɮɨɪɦɟ ɩɪɢ-
ɥɨɠɟɧɢɹ ɭɫɬɚɧɨɜɢɬɟ ɤɨɦɩɨɧɟɧɬ TStatusBar, ɜ ɤɨɬɨɪɨɦ ɨɬɪɚɡɢɬɟ ɬɟɤɭɳɭɸ
ɞɚɬɭ ɢ ɬɟɤɭɳɢɟ ɤɨɨɪɞɢɧɚɬɵ ɦɵɲɢ.
ȼɚɪɢɚɧ-
ɬɵ
ɂɫɯɨɞɧɵɟ ɞɚɧɧɵɟ
1
1. Ɉɪɝɚɧɢɡɭɣɬɟ ɢɧɬɟɪɮɟɣɫ Drag & Drop ɞɥɹ ɩɟɪɟɦɟɳɟɧɢɹ
ɤɧɨɩɨɤ ɩɨ ɮɨɪɦɟ ɜ ɝɥɚɜɧɨɣ ɮɨɪɦɟ ɩɪɢɥɨɠɟɧɢɹ.
2. ɍɫɬɚɧɨɜɢɬɟ ɡɚɳɢɬɭ ɢɧɮɨɪɦɚɰɢɢ ɞɥɹ ɜɜɨɞɚ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ
ɪɚɛɨɬɟ ʋ 1
2
1. ȼ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɟ ʋ 1 ɨɪɝɚɧɢɡɭɣɬɟ ɢɧɬɟɪɮɟɣɫ Drag &
Drop ɞɥɹ ɩɟɪɟɧɨɫɚ ɟɞɢɧɢɰ ɢɡɦɟɪɟɧɢɹ ɜ ɦɟɬɤɭ. Ⱦɥɹ ɷɬɨɣ ɰɟɥɢ
ɞɨɩɨɥɧɢɬɟ ɩɪɢɥɨɠɟɧɢɟ ɟɳɟ ɨɞɧɢɦ ɤɨɦɩɨɧɟɧɬɨɦ TLabel.
2. ɍɫɬɚɧɨɜɢɬɟ ɡɚɳɢɬɭ ɢɧɮɨɪɦɚɰɢɢ ɞɥɹ ɜɜɨɞɚ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ
ɪɚɛɨɬɟ ʋ 1
3
1. ȼ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɟ ʋ 2 ɨɪɝɚɧɢɡɭɣɬɟ ɢɧɬɟɪɮɟɣɫ Drag
& Drop ɞɥɹ ɩɟɪɟɧɨɫɚ ɡɧɚɱɟɧɢɹ ɫɪɟɞɧɟɝɨ ɛɚɥɥɚ ɢɡ ɪɟɞɚɤɬɨɪɚ ɜ
ɦɟɬɤɭ. Ⱦɥɹ ɷɬɨɣ ɰɟɥɢ ɞɨɩɨɥɧɢɬɟ ɩɪɢɥɨɠɟɧɢɟ ɟɳɟ ɨɞɧɢɦ ɤɨɦ-
ɩɨɧɟɧɬɨɦ TLabel.
2. Ɉɫɭɳɟɫɬɜɢɬɟ ɡɚɳɢɬɭ ɜɜɨɞɚ ɢɧɮɨɪɦɚɰɢɢ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ
ɪɚɛɨɬɟ ʋ 2
61
                Ɋɢɫ. 3.4.4. Ɉɤɧɨ ɪɚɛɨɬɚɸɳɟɣ ɩɪɨɝɪɚɦɦɵ
    1.6. Ɉɛɳɟɟ ɫɜɨɣɫɬɜɨ ɤɨɦɩɨɧɟɧɬɨɜ Hint
     ȼɫɟ ɜɢɞɢɦɵɟ ɷɥɟɦɟɧɬɵ ɢɦɟɸɬ ɫɜɨɣɫɬɜɚ Hint: String ɢ ShowHint:
Boolean, ɪɟɝɭɥɢɪɭɸɳɢɟ ɩɨɹɜɥɟɧɢɟ ɢ ɫɨɞɟɪɠɚɧɢɟ ɹɪɥɵɱɤɚ – ɧɟɛɨɥɶɲɨɝɨ
ɫɩɪɚɜɨɱɧɨɝɨ ɨɤɧɚ ɜɨɡɥɟ ɷɥɟɦɟɧɬɚ, ɧɚ ɤɨɬɨɪɨɦ ɨɫɬɚɧɨɜɢɥɫɹ ɤɭɪɫɨɪ.
     1. ȼ ɫɜɨɣɫɬɜɨ Hint ɞɥɹ ɩɚɧɟɥɢ Panel1 ɜɜɟɞɢɬɟ ɬɟɤɫɬ: «ɗɬɭ ɩɚɧɟɥɶ
ɦɨɠɧɨ ɩɟɪɟɦɟɳɚɬɶ».
     2. ɋɜɨɣɫɬɜɭ ShowHint ɡɚɞɚɣɬɟ ɡɧɚɱɟɧɢɟ True.
     3. Ɉɫɭɳɟɫɬɜɢɬɟ ɩɪɨɝɨɧ ɩɪɨɝɪɚɦɦɵ ɢ ɭɛɟɞɢɬɟɫɶ ɜ ɬɨɦ, ɱɬɨ ɩɪɢ ɨɫ-
ɬɚɧɨɜɤɟ ɤɭɪɫɨɪɚ ɧɚɞ ɤɨɦɩɨɧɟɧɬɨɦ Panel1 «ɜɫɩɥɵɜɚɟɬ» Hint.
      2. ɋɚɦɨɫɬɨɹɬɟɥɶɧɚɹ ɪɚɛɨɬɚ
      Ɂɚɞɚɧɢɟ. ɋɧɚɛɞɢɬɟ ɫɩɪɚɜɨɱɧɨɣ ɢɧɮɨɪɦɚɰɢɟɣ ɤɨɦɩɨɧɟɧɬɵ ɜɚɲɟɝɨ
ɩɪɢɥɨɠɟɧɢɹ, ɢɫɩɨɥɶɡɭɹ ɫɜɨɣɫɬɜɚ Hint ɢ ShowHint. ɇɚ ɝɥɚɜɧɨɣ ɮɨɪɦɟ ɩɪɢ-
ɥɨɠɟɧɢɹ ɭɫɬɚɧɨɜɢɬɟ ɤɨɦɩɨɧɟɧɬ TStatusBar, ɜ ɤɨɬɨɪɨɦ ɨɬɪɚɡɢɬɟ ɬɟɤɭɳɭɸ
ɞɚɬɭ ɢ ɬɟɤɭɳɢɟ ɤɨɨɪɞɢɧɚɬɵ ɦɵɲɢ.
 ȼɚɪɢɚɧ-
                               ɂɫɯɨɞɧɵɟ ɞɚɧɧɵɟ
   ɬɵ
           1. Ɉɪɝɚɧɢɡɭɣɬɟ ɢɧɬɟɪɮɟɣɫ Drag & Drop ɞɥɹ ɩɟɪɟɦɟɳɟɧɢɹ
    1      ɤɧɨɩɨɤ ɩɨ ɮɨɪɦɟ ɜ ɝɥɚɜɧɨɣ ɮɨɪɦɟ ɩɪɢɥɨɠɟɧɢɹ.
           2. ɍɫɬɚɧɨɜɢɬɟ ɡɚɳɢɬɭ ɢɧɮɨɪɦɚɰɢɢ ɞɥɹ ɜɜɨɞɚ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ
           ɪɚɛɨɬɟ ʋ 1
           1. ȼ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɟ ʋ 1 ɨɪɝɚɧɢɡɭɣɬɟ ɢɧɬɟɪɮɟɣɫ Drag &
           Drop ɞɥɹ ɩɟɪɟɧɨɫɚ ɟɞɢɧɢɰ ɢɡɦɟɪɟɧɢɹ ɜ ɦɟɬɤɭ. Ⱦɥɹ ɷɬɨɣ ɰɟɥɢ
    2      ɞɨɩɨɥɧɢɬɟ ɩɪɢɥɨɠɟɧɢɟ ɟɳɟ ɨɞɧɢɦ ɤɨɦɩɨɧɟɧɬɨɦ TLabel.
           2. ɍɫɬɚɧɨɜɢɬɟ ɡɚɳɢɬɭ ɢɧɮɨɪɦɚɰɢɢ ɞɥɹ ɜɜɨɞɚ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ
           ɪɚɛɨɬɟ ʋ 1
           1. ȼ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɟ ʋ 2 ɨɪɝɚɧɢɡɭɣɬɟ ɢɧɬɟɪɮɟɣɫ Drag
           & Drop ɞɥɹ ɩɟɪɟɧɨɫɚ ɡɧɚɱɟɧɢɹ ɫɪɟɞɧɟɝɨ ɛɚɥɥɚ ɢɡ ɪɟɞɚɤɬɨɪɚ ɜ
    3      ɦɟɬɤɭ. Ⱦɥɹ ɷɬɨɣ ɰɟɥɢ ɞɨɩɨɥɧɢɬɟ ɩɪɢɥɨɠɟɧɢɟ ɟɳɟ ɨɞɧɢɦ ɤɨɦ-
           ɩɨɧɟɧɬɨɦ TLabel.
           2. Ɉɫɭɳɟɫɬɜɢɬɟ ɡɚɳɢɬɭ ɜɜɨɞɚ ɢɧɮɨɪɦɚɰɢɢ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ
           ɪɚɛɨɬɟ ʋ 2
                                  61

Страницы