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发表于 2012-11-13 08:48:12
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1判断语句1 A, P' p$ j- n( m* Y6 z
if <condition> then
& d9 w( K+ B1 O! Y: Z' K <statement sequence1>;
, Y# v% B" ~ g' R elseif <condition> then+ d7 ?/ v; C2 @5 W) h4 O2 x/ j# y' w# Z
<statement sequence2>;
* e+ F: E% V3 {. ^+ t$ W b else
* p( a* u/ m* k0 B <statement sequence3>;
2 M8 \1 ]! g2 Z5 T4 Y7 W/ J end; o) I9 k! \# \) q" ?7 m/ G
如果分支比较多，用：
+ u- b0 H5 Q; T' p inspect <expression>
. E( h1 b4 u9 C+ `. O when <constant_list> then
% R/ P1 y1 U9 ]( R <statement sequence1>;9 Z, c6 F. s5 Y$ x1 I7 `0 T# L
when <constant_list> then+ [( ~0 H6 l$ N& T
<statement sequence2>;
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else
y/ d6 N# p C' O! N" W! y. H$ a <statement sequence3>;
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Y0 v" | x3 e2循环语句4 ~7 v) F) o5 a% i8 |; g% H, s- c
(1) from <statement sequence1>9 a- h6 F1 x- q
until <condition> loop
, c2 y. d5 K9 J: L! K <statement sequence2>;
7 K3 ]4 r1 V- u. @/ O+ p& @ end;
' _7 ]: W8 B- ^" R# d (2) while <condition> loop, w; ?2 t5 m+ q% ]/ X
<statement sequence1>;
: P6 J' N! `1 r& L, c end;
! q' {" u& g8 y% W% F+ G+ m (3) repeat
! S6 n! G6 V+ H( G+ A) Y+ U <statement sequence1>;
# B7 y: |5 G' n( N( _ until <condition>;
4 ^1 Q- ?+ o! f& ^* f (4) for <condition> to <condition> loop
$ j4 t$ O) q( t& y6 t# u' @! L <statement sequence1>;
. t+ `+ q, C0 v! z$ S) m next;
, {& Y2 J0 r2 ~; v/ g3中断语句7 Q( |) \% H# D% o+ b6 I9 [
waituntil <condition> prio <integer expression>;- f* q) s8 Y) ]2 e/ U, ^
' O g) e& R, O1 _" E6 V
! {1 l# ^8 P8 q: y& d: o5 { s以上为常用的函数！
. d% J' l& T4 B& x/ ~还有很多，如有需要我把资料发到你邮箱里
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