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发表于 2012-11-13 08:48:12
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1判断语句
s0 S4 ^2 c* F- f% k, }4 X if <condition> then
' x) H8 Q4 p7 M; z, b <statement sequence1>;7 \; K; _" Z; G5 J6 E0 ]
elseif <condition> then6 Q' n a4 g9 o- x5 ^; U
<statement sequence2>;! V* H L; C. o5 _- E4 {2 u
else
) x! F8 {/ b0 {( P! y <statement sequence3>;; ~# o/ E. I% ]8 c
end;. r; y: R0 T& ~- b
如果分支比较多，用：0 G; H1 G# c% y. l+ p' E9 |
inspect <expression>) [% ^5 M, S. j# O# D5 l8 T
when <constant_list> then
6 W ]( z" m2 K+ g5 J6 Y% e <statement sequence1>;
" l6 T# B9 X! M: O/ g% S% p when <constant_list> then
8 ?& @! C+ @- H* M <statement sequence2>;" @( c* J+ }8 M3 q% J0 ^; ^: B
...
8 d* `9 h: \5 G else. G* h% c) M* z0 C
<statement sequence3>;
9 Z4 b. g' _! {& u2 n$ ~8 `end;% l- V- G+ f/ V0 _* n: v! _
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2循环语句
: U, N' P- t$ s' B% \6 E (1) from <statement sequence1>
4 s! g% a* \" t7 ] until <condition> loop
& @6 Y8 A! x1 S. g <statement sequence2>;# n' Q8 |. B, N5 A/ D
end;
, k0 d+ [9 `9 H; i7 b2 ]% g (2) while <condition> loop
: C) E1 j/ \/ R' I <statement sequence1>;
3 d/ _ o9 {8 ]6 C% B" [ end;
2 U- b# P9 d$ U% F$ \5 H7 h/ ], B (3) repeat
# H q1 [$ b6 D/ h <statement sequence1>;
; P$ c( M* C/ U! J until <condition>;
8 }* ^1 D) ]! t2 C. ]5 [1 c (4) for <condition> to <condition> loop1 F& I$ n) W+ f: C3 B
<statement sequence1>;
5 O% ~7 ~" p: D8 q( A; P+ Q next;
: \% Z3 ]3 W% c. b& G* Q" v* q3中断语句
0 H, O2 d3 Z! D1 y$ c1 k5 c ^. q waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ Y0 |- L# }1 |0 H) ]- N6 }
还有很多，如有需要我把资料发到你邮箱里 1 }% Q7 T1 P$ m% i+ M) n
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