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发表于 2012-11-13 08:48:12
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1判断语句
' K+ [) B) O- m0 t1 i7 Y7 s3 q9 w! n if <condition> then
1 k& K) Y7 k% |. @6 ~: j7 [( t# M3 B+ D <statement sequence1>;( ~# {) Z& d/ x) p8 |) c) \
elseif <condition> then
0 Q1 b6 ~. a( d7 _ <statement sequence2>;
; ?% h$ u6 ]& t) _' H else
" s" k4 r- n" \. A! _! X <statement sequence3>;0 I7 ?9 R: A7 {
end;
$ N! Y2 O$ N) h; l7 s- v( w如果分支比较多，用：
1 y& T( ~' n, ^. O) V u+ G& B inspect <expression>
K* F# ` N6 I: g. W, V' T when <constant_list> then
8 E( \0 j% {/ T8 d. P5 x <statement sequence1>;- U8 e6 ]- G9 D: Z
when <constant_list> then
5 }5 z6 r" h, ^ <statement sequence2>;
1 r$ h, Y7 U$ p4 X5 f, m; t# f ...
3 ?9 V7 u" r }) Y# Y: K) X/ S else
! n8 m* M/ K3 k7 g0 n7 W <statement sequence3>;8 A, ]- I8 x( g# M
end;
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2循环语句. O/ N$ V+ }) |3 p# v) l
(1) from <statement sequence1>6 e$ p" y% D. I# ~
until <condition> loop$ K7 \* G& s$ S3 t# J! y2 L; m
<statement sequence2>;6 E& s+ N) n: h
end;/ Z5 ~: m% g0 ~1 @
(2) while <condition> loop
; |7 {0 `3 s/ c0 Z) v/ u <statement sequence1>;
) @9 O) ^7 L" R5 A; m1 S5 `+ n5 `# j2 d end;
4 k6 o) Q% s+ `, t, [" n: _6 h! ]- t (3) repeat - f7 ^0 X5 w7 e! o! Z; M M3 R
<statement sequence1>;
8 v! D' q& ]9 S4 i' a until <condition>;
$ K8 l+ o& s6 H* i (4) for <condition> to <condition> loop4 ~! k8 q# Z2 p
<statement sequence1>;
" m8 F+ A; H4 x" j+ J# \ next;
0 U# i: d( R+ M6 e' O/ A6 e5 Y' ~3中断语句, a9 c! O. g, X' n" l) H( j5 {% }5 N6 E
waituntil <condition> prio <integer expression>;
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& J) d5 v% ?& R8 j
- K" s# W% t8 u; B! r以上为常用的函数！
: ~9 m! {; }( g6 N# M还有很多，如有需要我把资料发到你邮箱里 4 A; ~- M3 N$ U6 ~: T
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