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发表于 2012-11-13 08:48:12
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1判断语句1 H. S7 u4 |8 B# z, {( ~4 u+ q6 Y/ l
if <condition> then
& _9 ?- e6 q- j3 l; V$ ?( N <statement sequence1>;6 M1 S& V* [0 L, X5 V; p, D* p1 q
elseif <condition> then
: e; z# m, x, _ <statement sequence2>;6 s) s: `5 g: d. r- I3 z% [
else 0 \; `% l/ `7 Q1 h
<statement sequence3>;1 J9 U( i% f, n& i
end;
3 R& d( [9 z& w; r8 O如果分支比较多，用：
& [7 L- c) k6 ?- X" g( ? inspect <expression>
0 ~9 Z2 m/ h$ }2 u& H! ? when <constant_list> then
: E1 I6 u" y) ^! K% u% I. Y! E <statement sequence1>;
2 m5 @3 y) |4 ^( B when <constant_list> then
! D3 y& a' b, L6 P/ ?2 N3 b <statement sequence2>;/ q/ S* N$ J. T- ^
...
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<statement sequence3>;
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2循环语句
/ p6 C& m) m4 I0 `& I1 _ (1) from <statement sequence1>
; k& I9 d$ a' a) B" T. {. {% | until <condition> loop, l3 ?+ T/ s: W/ g
<statement sequence2>;
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(2) while <condition> loop
) S' G. P; b' t( Z <statement sequence1>;
& B: z, y+ T5 P& k- V end;( b% L, H* o0 o. D
(3) repeat
9 k' q* ^! R# ` P& j& C <statement sequence1>;
" S+ T ?3 N6 g+ S" _4 c until <condition>;
) y! }& m+ a5 m, S0 H (4) for <condition> to <condition> loop
- e" i* A* q ]! [/ u+ \ <statement sequence1>;
5 U: Y; {8 M4 I$ G. K0 z2 u; G next;$ L% r3 U+ C+ z% m. y" v
3中断语句
) B* J' x r+ b, S waituntil <condition> prio <integer expression>;
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j9 H* C, m! {3 X1 J
. c( g) N% ~1 W9 Y以上为常用的函数！5 D+ U0 D0 X! d6 E/ q
还有很多，如有需要我把资料发到你邮箱里 5 ?! g7 {7 ?- F
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