主题:[提问]ENVIRON$()有何作用?
CLS
i = 1
DO
e$ = ENVIRON$(i)
PRINT i, e$
i = i + 1
LOOP UNTIL e$ = ""
程序运行结果:(win98)
1 TMP=C:\WINDOWS\TEMP
2 TEMP=C:\WINDOWS\TEMP
3 PROMPT=$p$g
4 winbootdir=C:\WINDOWS
5 COMSPEC=C:\WINDOWS\COMMAND.COM
6 PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;C:\KAV6
7 CMDLINE=WIN
8 windir=C:\WINDOWS
9 BLASTER=A220 I5 D1 T4 P300
10
i = 1
DO
e$ = ENVIRON$(i)
PRINT i, e$
i = i + 1
LOOP UNTIL e$ = ""
程序运行结果:(win98)
1 TMP=C:\WINDOWS\TEMP
2 TEMP=C:\WINDOWS\TEMP
3 PROMPT=$p$g
4 winbootdir=C:\WINDOWS
5 COMSPEC=C:\WINDOWS\COMMAND.COM
6 PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;C:\KAV6
7 CMDLINE=WIN
8 windir=C:\WINDOWS
9 BLASTER=A220 I5 D1 T4 P300
10