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发表于 2012-11-13 08:48:12
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1判断语句3 c, v3 E- y0 z( N5 r
if <condition> then
* I) c# d3 i" x/ a% `7 y2 {( H% T <statement sequence1>;
1 O3 n* R/ n$ C/ `* Z6 T elseif <condition> then
4 p* T# N2 g' b. [ <statement sequence2>;
1 V, f! m' w! j. \ else 9 e* a' q( V8 u
<statement sequence3>;% s7 Y% R/ U& X* \6 z. v# s; ]
end; Z# H; l# P- ] A2 R( d( Z x
如果分支比较多，用：5 w1 g K9 u" T, X
inspect <expression>/ x3 z% p4 P( o- _3 p; b. A
when <constant_list> then
6 d t" P! H+ c# J" j <statement sequence1>;3 K+ K* H2 k1 x1 x% Z; e
when <constant_list> then
' A+ i$ j9 e5 m* j <statement sequence2>;
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else
$ W& z, }* F! n* v <statement sequence3>;
% j A# G4 p0 J; b' w. E% s/ ^ S; e1 Eend;
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2循环语句
7 H0 X+ M$ Q8 L5 r (1) from <statement sequence1>! N3 I W. T' L; J7 x. q0 K
until <condition> loop
" l+ `( \: _9 X% Z' S <statement sequence2>;/ B; H4 D4 v) W! s
end;
/ B5 Q& Z$ @8 t6 p: d (2) while <condition> loop# w! G7 {$ o0 ^6 w: a- a8 w, p
<statement sequence1>;
/ n6 Y- Z) P2 y' l1 Q h+ k) R end;: G( k( U8 i! n* r/ ~9 a
(3) repeat
% }2 s2 E" i0 \ ?* m9 X <statement sequence1>;
; B8 W6 D* i. L$ i2 K until <condition>;6 Y% F1 \$ J; Z* Z% v
(4) for <condition> to <condition> loop
5 Q* v6 C4 |/ P! a1 U6 T" C, { <statement sequence1>;
# I" ?, H, w8 Y8 { next;+ U- ~7 g- g X: }
3中断语句: Y" [- S& N8 k7 O& z* G3 S
waituntil <condition> prio <integer expression>;5 x% N, m& p& _9 T
$ V. g4 S( D% n7 ?
5 _( K. L. Q$ { m; J" I以上为常用的函数！
4 _* I; t. ~& Q' J还有很多，如有需要我把资料发到你邮箱里 + _6 v& F s2 t7 M9 h
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