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发表于 2012-11-13 08:48:12
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1判断语句4 D$ S/ r% Z. a% E4 G2 r
if <condition> then
# i( P5 s! g! \& P$ P/ V <statement sequence1>;
% S: k: e! h+ O; y elseif <condition> then! i- ]) h0 x/ `" z
<statement sequence2>;5 b6 \7 M- C+ L) u) ~: m, q* t
else
- P6 `* X- ]$ Z ] <statement sequence3>;
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如果分支比较多，用：
. w1 k/ l9 M" J3 ^# d inspect <expression>
5 m' l( I1 y: ^- z- | when <constant_list> then* G6 E5 X: c7 f6 a8 E+ Q# g
<statement sequence1>;" ]; |; R+ F9 V, c7 d% V
when <constant_list> then
j3 p' D. F7 J- f <statement sequence2>;% j# U$ X4 n% P6 T0 y7 Y8 ]
...% H" d2 \1 p7 v% ]
else
; k: M5 D7 O; W% U; m. k/ ] <statement sequence3>;+ J( H* `/ [. v. u
end;
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2循环语句( k' t% T6 R3 A& a4 T6 s
(1) from <statement sequence1>9 {* b6 k9 s, M& F
until <condition> loop
" h. ]2 i, S* Q& o$ c: [; ?( A <statement sequence2>;+ I/ ~, ]" h1 K) [
end;
; K; w' v( I; A: J3 B! h6 [6 x7 e (2) while <condition> loop }# `7 X7 \' T7 k
<statement sequence1>;" u6 J9 K* @, P6 f2 r$ [! A; q
end;
2 Q- B& H/ N( P4 ?& Q- `& Q+ Y (3) repeat 3 R! [) m' F2 H( B: N$ o! n
<statement sequence1>;
# W3 O z z! P5 R$ `# G* |( D until <condition>;
$ S" L! P, ~ z (4) for <condition> to <condition> loop
% u$ J ~8 t* s" O <statement sequence1>;, x1 T4 l6 m% m- f6 _
next;2 n/ @3 E7 N: E% v, X
3中断语句, E# n* \& K0 y
waituntil <condition> prio <integer expression>;
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. a& \: O& J; |3 I! H
/ J7 I$ X% u- y v* u; s以上为常用的函数！
E$ H2 K& x# r8 {* o还有很多，如有需要我把资料发到你邮箱里
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