QBasic (QB64) 制作的主菜单？
Main Menu made in QBasic (QB64)?
我很久以前就做了这个菜单，但是大约 2 天前我找到了文件，我想让它起作用
CLS
FOR k = 10 TO 65
LOCATE 2, k: PRINT CHR$(222)
LOCATE 23, k: PRINT CHR$(222)
LOCATE 4, k: PRINT CHR$(222)
LOCATE 20, k: PRINT CHR$(222)
NEXT
FOR k = 2 TO 23
LOCATE k, 10: PRINT CHR$(222)
LOCATE k, 65: PRINT CHR$(222)
NEXT
LOCATE 3, 35: PRINT "M A I N M E N U"
LOCATE 6, 15: PRINT "[1] First Option"
LOCATE 8, 15: PRINT "[2] Second Option"
LOCATE 10, 15: PRINT "[3] Third Option"
LOCATE 12, 15: PRINT "[4] Fourth Option"
LOCATE 14, 15: PRINT "[5] Exit"
LOCATE 21, 15: INPUT "Enter your option"; op
现在，我想让它工作，例如：如果我按 1，它会自动转到该选项，依此类推...
使用整数变量比使用浮点变量更快。出于效率原因，您可以将 k 和 op 变量更改为 k% 和 op%.
要在此菜单中直播，您有多种选择。按照个人喜好排序：
使用SELECT CASE
DO
CLS
... ' the instructions that build your menu
LOCATE 21, 15: INPUT "Enter your option"; op%
SELECT CASE op%
CASE 1
... ' instructions belonging to 1st option
CASE 2
... ' instructions belonging to 2nd option
CASE 3
... ' instructions belonging to 3rd option
CASE 4
... ' instructions belonging to 4th option
CASE 5
END
END SELECT
LOOP
使用IF
DO
CLS
... ' the instructions that build your menu
LOCATE 21, 15: INPUT "Enter your option"; op%
IF op%=1 THEN
... ' instructions belonging to 1st option
ELSEIF op%=2 THEN
... ' instructions belonging to 2nd option
ELSEIF op%=3 THEN
... ' instructions belonging to 3rd option
ELSEIF op%=4 THEN
... ' instructions belonging to 4th option
ELSEIF op%=5 THEN
END
END IF
LOOP
使用ON GOSUB
DO
CLS
... ' the instructions that build your menu
LOCATE 21, 15: INPUT "Enter your option"; op%
IF op%>0 AND op%<6 THEN
ON op% GOSUB one, two, three, four, five
ENDIF
LOOP
one: ... ' instructions belonging to 1st option
RETURN
two: ... ' instructions belonging to 2nd option
RETURN
three: ... ' instructions belonging to 3rd option
RETURN
four: ... ' instructions belonging to 4th option
RETURN
five: END
DO ... LOOP使程序运行直到用户最后按5到select退出.任何无效输入将重新显示菜单。
我很久以前就做了这个菜单，但是大约 2 天前我找到了文件，我想让它起作用
CLS
FOR k = 10 TO 65
LOCATE 2, k: PRINT CHR$(222)
LOCATE 23, k: PRINT CHR$(222)
LOCATE 4, k: PRINT CHR$(222)
LOCATE 20, k: PRINT CHR$(222)
NEXT
FOR k = 2 TO 23
LOCATE k, 10: PRINT CHR$(222)
LOCATE k, 65: PRINT CHR$(222)
NEXT
LOCATE 3, 35: PRINT "M A I N M E N U"
LOCATE 6, 15: PRINT "[1] First Option"
LOCATE 8, 15: PRINT "[2] Second Option"
LOCATE 10, 15: PRINT "[3] Third Option"
LOCATE 12, 15: PRINT "[4] Fourth Option"
LOCATE 14, 15: PRINT "[5] Exit"
LOCATE 21, 15: INPUT "Enter your option"; op
现在，我想让它工作，例如：如果我按 1，它会自动转到该选项，依此类推...
使用整数变量比使用浮点变量更快。出于效率原因，您可以将 k 和 op 变量更改为 k% 和 op%.
要在此菜单中直播，您有多种选择。按照个人喜好排序：
使用SELECT CASE
DO
CLS
... ' the instructions that build your menu
LOCATE 21, 15: INPUT "Enter your option"; op%
SELECT CASE op%
CASE 1
... ' instructions belonging to 1st option
CASE 2
... ' instructions belonging to 2nd option
CASE 3
... ' instructions belonging to 3rd option
CASE 4
... ' instructions belonging to 4th option
CASE 5
END
END SELECT
LOOP
使用IF
DO
CLS
... ' the instructions that build your menu
LOCATE 21, 15: INPUT "Enter your option"; op%
IF op%=1 THEN
... ' instructions belonging to 1st option
ELSEIF op%=2 THEN
... ' instructions belonging to 2nd option
ELSEIF op%=3 THEN
... ' instructions belonging to 3rd option
ELSEIF op%=4 THEN
... ' instructions belonging to 4th option
ELSEIF op%=5 THEN
END
END IF
LOOP
使用ON GOSUB
DO
CLS
... ' the instructions that build your menu
LOCATE 21, 15: INPUT "Enter your option"; op%
IF op%>0 AND op%<6 THEN
ON op% GOSUB one, two, three, four, five
ENDIF
LOOP
one: ... ' instructions belonging to 1st option
RETURN
two: ... ' instructions belonging to 2nd option
RETURN
three: ... ' instructions belonging to 3rd option
RETURN
four: ... ' instructions belonging to 4th option
RETURN
five: END
DO ... LOOP使程序运行直到用户最后按5到select退出.任何无效输入将重新显示菜单。