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发表于 2012-11-13 08:48:12
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1判断语句4 s8 f0 |* t7 s# ~8 b, M! U
if <condition> then* C9 p0 @: S+ a1 p$ v2 \" W- i2 i
<statement sequence1>;
+ y' L* z8 Z: @% I' G' l- R1 u5 _ elseif <condition> then
/ x+ y5 S+ d/ z <statement sequence2>;3 p* `# M' b# c) `$ j+ A n _
else 6 I3 j' B$ Z: U
<statement sequence3>;+ p4 K: m# D Y6 f
end;% T {- N3 b( d# E; y
如果分支比较多，用：/ W3 c4 J- ^# Q% _4 c* m1 W0 @$ U
inspect <expression>) Z$ ^! p9 d8 |, i: S' b
when <constant_list> then
2 P$ l( c) |' {- u" Z1 B; J <statement sequence1>;. H4 s H' H. x7 x
when <constant_list> then
! Q; m9 r& I+ h+ k+ T* ~ I <statement sequence2>;
, Z# U8 T* s0 {. w7 y- B+ q" v3 B ...
- g( k _7 F5 O% O* u6 m( V else
w* O. g, b; A( D( f5 H <statement sequence3>;: C$ B8 G( S% K; h/ Z7 B; B+ M* S
end;
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6 \; E, U& {1 Y: a- S2循环语句4 p J5 X7 b- a/ |4 W
(1) from <statement sequence1>
9 g# w5 V! F) o1 h* [, F3 G until <condition> loop5 }" t O+ U% j" _6 f5 p
<statement sequence2>;
7 D: v6 [. D0 L* U$ E end;1 m* H% y* i5 F1 o+ y
(2) while <condition> loop
6 l3 l* o! i. y/ A) H! w( M6 I% {( L <statement sequence1>;
4 b7 P. {1 R0 [/ K: X' b6 z& P, {. [ end;3 N* j C1 y$ N+ }' }$ `! r
(3) repeat 9 y) c% H b/ w! m
<statement sequence1>;
2 D; }' `( D/ F$ h+ T8 }/ [ until <condition>;+ ]5 h* G- `1 z7 U9 E1 Y. B$ a* h& F
(4) for <condition> to <condition> loop5 Z) W% J( z$ b, @0 @* b
<statement sequence1>;
; d' i# Z2 J$ F4 j next;3 n& y z6 S. E8 n1 d
3中断语句
$ B5 B9 P9 V& H i: o waituntil <condition> prio <integer expression>;$ h. ?7 `( h. J3 M
7 y3 H( X5 F6 M6 M1 }* x
2 f1 l# R( x4 _% n0 x' Z" O; B以上为常用的函数！9 I7 H' E1 N. ~
还有很多，如有需要我把资料发到你邮箱里 ! ^4 ^4 \ j% _+ _, L' Q1 o- N: l0 v
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