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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
5 }4 L4 |6 G( R4 i5 w if <condition> then
; o. }# M% U# p <statement sequence1>;% z% ^0 L2 G$ V/ q
elseif <condition> then+ u& ^; O$ D3 c
<statement sequence2>;& v0 S& t' i! r9 X" e% E% B6 R. n
else
! T" Y- Q5 V+ c <statement sequence3>;
& ]: f- s8 z# N$ v# [- i, ~! _; ^ end;5 q5 O& a b6 k. h' ?: d2 |
如果分支比较多，用：
* j/ G; R# D7 x3 \$ Y/ g4 {: O) D inspect <expression>
4 k3 d+ ]) r! g: y3 @7 m) h* b when <constant_list> then
# q, R; {! J$ n <statement sequence1>;
+ Q. Q6 B; }5 a$ {5 e' O when <constant_list> then! s' X3 i' e+ ]3 s- q. g
<statement sequence2>;) ^1 z0 f% E* d) P. _
...4 O1 \: | E v
else5 |3 p' r& `8 \1 v9 ^( \
<statement sequence3>;
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7 d8 s# o1 {. j$ ^ E2循环语句; g7 {5 Q& _) z2 N* T
(1) from <statement sequence1>
: ~0 K/ L4 S2 s4 H, B$ ` until <condition> loop( n9 W$ }* U7 p5 r! h: C
<statement sequence2>;
' ^& z% U; O! `+ r4 O" k end;
+ O+ l/ x3 d: R( g, Y (2) while <condition> loop) C1 b* Y& H" S) J f4 t
<statement sequence1>;
; Z" f3 @, b \! _* n0 _# D5 g end;! h4 D8 x9 J! W
(3) repeat
; n7 [" k. A1 S& A$ x) K" s <statement sequence1>;
, F5 M, N+ T* M, Q+ | until <condition>;
+ [8 m4 U+ }, T6 C: [ M! L (4) for <condition> to <condition> loop
' {! S& s' i9 \2 o <statement sequence1>;
# s+ ]9 R( P) t0 E; j! u& W( D* W next;6 {. T* h( ?3 [! R. m
3中断语句
2 _$ Q. A" ~9 m3 H% G9 M1 O waituntil <condition> prio <integer expression>;2 u; A- ?# X/ o9 Q, W6 m( x4 L; @
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以上为常用的函数！
. q& Y% r- f8 O还有很多，如有需要我把资料发到你邮箱里
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