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发表于 2012-11-13 08:48:12
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1判断语句/ O3 o( ? ^8 K4 ]
if <condition> then/ S9 k! @, ^) d% ~
<statement sequence1>;- ]6 |- k5 y. L+ q+ l+ u: I
elseif <condition> then
3 h9 z, |# n& k! W <statement sequence2>;
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<statement sequence3>;9 K$ X' ]3 F/ e2 e& a
end;
6 d6 c& A4 a6 k- Q) M2 i: l如果分支比较多，用：
8 i* O& V8 M2 R: o inspect <expression>
% \' K) |" S0 o4 ?, ^ when <constant_list> then
- x: R; h# a5 f! G <statement sequence1>;2 W- n3 ]0 `& G t- n
when <constant_list> then ]* h/ ?3 S4 |, E# B% U6 o+ ?
<statement sequence2>;
3 U5 }: ?! I9 N0 o+ x" e! K& F: r ...
- E2 Z0 _- z* S6 \8 D" K: o4 \3 S& \ else
( z8 z1 D* D- a6 ? _2 | <statement sequence3>;; o- p. y. X5 J, A( S9 j! e) v% R
end;
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2循环语句" q$ d* u. T8 b1 R3 A$ A2 I
(1) from <statement sequence1>
: ~; ?% C' }8 h7 Y' s until <condition> loop
* V, P5 J2 P& d6 ? <statement sequence2>;
# X5 N" L, ~9 `- H' Y( p end;
4 O: C5 q: z7 S6 d (2) while <condition> loop
# C& d5 H/ [. s) s& I9 N2 V <statement sequence1>;
6 t( C- H5 h' K) P) E9 j end;& t$ b7 B6 t: v: e3 l9 T# P4 z
(3) repeat & c3 V/ @1 ~1 j; F
<statement sequence1>;
2 o* G7 r6 c; @ until <condition>;
, G8 Q9 f8 Z8 x2 t) O7 a: f (4) for <condition> to <condition> loop E0 k4 {3 A% w; P/ t: y* E
<statement sequence1>;
" L9 l- {. {# U next;( R- P' T% |& T5 S% v
3中断语句( K6 f+ @$ D3 _4 U- G* ]- O" C
waituntil <condition> prio <integer expression>;
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# ]! T9 U3 F+ J: p
以上为常用的函数！, f" k7 }, P e2 S, {) f
还有很多，如有需要我把资料发到你邮箱里 * i( ? Q7 D& L" f. z
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