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发表于 2012-11-13 08:48:12
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1判断语句& B3 L& a N2 _ ?' E& W
if <condition> then
6 k/ o, {4 X& c& y; `+ K <statement sequence1>;' n, [& y$ _; v
elseif <condition> then
3 c; T E1 z% A' u. T$ E <statement sequence2>;: r5 |$ a( [. \& X
else m6 F% t6 r% r9 D D
<statement sequence3>;) l7 F7 }1 {2 G4 |4 N& T: c
end;, T6 F) A0 p" b2 \
如果分支比较多，用：; k9 X% Z& h0 D+ h4 w
inspect <expression>
% }5 ]' g% [+ P- `; {- Y2 Q when <constant_list> then
% R/ j" U/ ]: h$ H8 r& a+ v7 R <statement sequence1>;
3 `: k" ]4 N( p; e" q when <constant_list> then
. Z& T, E" Z" G0 ]. v <statement sequence2>;
2 Q' o4 q/ `8 k) E" m/ K% z% B$ |: H$ x ...
) v' y1 m' S* z2 m, ]" L+ ~/ o/ N else
# X! z, f1 B" `6 M$ o# K% r <statement sequence3>;
! F/ O+ s/ l( Q: J8 }$ H5 m. jend;. K9 H& [& H5 A0 J! C2 f
4 G3 C& R4 ?" A; d5 b/ V* z6 Y2循环语句4 S9 H% q2 V. v8 v6 V4 J. c0 b5 q
(1) from <statement sequence1>) E, o; T2 \. g! N8 p& `
until <condition> loop. ~6 q) u; ^! @3 b2 q
<statement sequence2>;
" _) L X# H Z end;' h5 m% q% G( B2 n3 |
(2) while <condition> loop
' ]" i/ k1 I- A, `* q% w <statement sequence1>;3 c) C, @+ s1 F2 f! r% z. x0 H
end;; R+ A; ^3 P8 a# E
(3) repeat
: o, ], ^4 q+ x ] <statement sequence1>;
6 i, X0 M; j" r0 |# x& b6 W until <condition>;% V! U( K& h6 d( @" w5 Z+ F
(4) for <condition> to <condition> loop
' q3 G3 o# @% P$ w* w' ?( X <statement sequence1>;" R& W. o( ?$ n; T" T* p
next;
$ Z0 d8 ]$ X* ], i1 a$ W3中断语句/ Y" m1 m- {9 x1 q) N$ o
waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 @$ z9 c' Q' h
还有很多，如有需要我把资料发到你邮箱里 6 B$ |7 [6 l' n5 F/ {
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