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发表于 2012-11-13 08:48:12
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1判断语句
& o/ X u! s. _2 b if <condition> then
/ h) m3 t4 D5 v6 `) q5 r$ S <statement sequence1>;
c7 b+ A! ~: l' E elseif <condition> then2 |+ g" Y9 x; ]( \; K
<statement sequence2>;# L4 K" v% g7 \- U' s/ ~. u
else
( P* N$ h3 U( v% f3 E+ v <statement sequence3>;
, {9 h- J3 r' Z4 r% [4 N8 w& ^ end;
2 t" g# G; j& ?如果分支比较多，用：
9 B9 U6 [& ?, ]8 Z) }+ M6 X inspect <expression>
# T, T5 K4 z: p6 ?' b7 H5 K when <constant_list> then/ A/ [# n0 \# J7 u& [
<statement sequence1>;* w. M$ J, ]" V6 c" A
when <constant_list> then
# [* c6 o% P7 N n2 v <statement sequence2>;
) i5 V0 J; [; M# x9 u ...
- D ]$ n- p+ X+ |4 z else
3 d' R% T$ F3 R: H <statement sequence3>;0 Z# n* V, K: M) r x, _
end;
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2循环语句+ H( q1 p9 Y2 @6 I( R. p+ E9 |
(1) from <statement sequence1>8 y H I {# d, k. V
until <condition> loop
& T3 m3 e0 I, O/ F1 _, B <statement sequence2>;+ s* E4 K% v3 w; e
end;
, U1 E7 P7 D9 ] (2) while <condition> loop; p" N8 x0 B4 n9 o0 [
<statement sequence1>;
: D9 y+ C6 E+ G5 @1 ^ end;
) O/ C: Z. l+ ~) s* Z) _ (3) repeat
$ [9 v/ c2 D. P <statement sequence1>;
! m1 k' Z% _. R: N- u until <condition>;
9 h& v, Z q7 j (4) for <condition> to <condition> loop
4 U3 a% T3 f" v9 s <statement sequence1>;
: e, G/ Q3 s. ~ next;
. h$ q; J* l: j3中断语句
( Y- P" u& Z0 C/ M waituntil <condition> prio <integer expression>;
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& W- [0 r2 l \3 X
0 m' N; q) S" T以上为常用的函数！
2 l; s: l, f7 K: R5 \1 N还有很多，如有需要我把资料发到你邮箱里
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p% a o* u4 e& q/ t
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