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发表于 2012-11-13 08:48:12
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1判断语句
8 I! Z1 o: c2 k s8 x- y. O if <condition> then
2 G+ U: R# L) s' m) y <statement sequence1>;1 f, m8 q, V& _. v
elseif <condition> then
+ p2 h( ~! I# i: @3 s) F <statement sequence2>;) R5 U( N% x% u+ S
else
: a% P- x# }( `& g z <statement sequence3>;, J, @* E) r, P( j5 Q6 b* ~ L
end;. f- _# g, h, P3 B+ Z( I
如果分支比较多，用：9 ^7 K) r# A; S1 |) h3 |
inspect <expression>$ g# @7 \1 O( I; p
when <constant_list> then/ p* o0 e0 U5 d7 q' }+ Y
<statement sequence1>;3 z# F. y9 {' a6 V, s% I
when <constant_list> then* C T3 _& D/ M3 ~1 c7 H# X3 b( j
<statement sequence2>;
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else
. n0 |" W2 j2 M <statement sequence3>;3 C' R9 ~4 O' D* E4 @8 Y
end;
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2循环语句# r( W$ |$ ?9 l( T4 ^7 B
(1) from <statement sequence1>
, V5 C' H( V, ? until <condition> loop
# O# {) j! c! k' N1 g& W <statement sequence2>;) U G1 v0 M0 }4 _
end;
4 Q8 L1 U7 v! y" e7 j (2) while <condition> loop
& ~$ y) w, ~! Z. l8 q5 j <statement sequence1>;
4 U5 C4 O2 M2 u# ^, c1 S/ o end;
! _& J' F4 ?! Y( ? (3) repeat 7 s/ d( E% H8 r( L$ F, E
<statement sequence1>;& S( z. P; [8 T" {$ l2 t
until <condition>;
) Q8 q1 O9 T% n& m) {' ] u4 K/ | (4) for <condition> to <condition> loop
( M9 Q4 |% l2 H1 ]- @" c- { <statement sequence1>;
0 q+ @' j) H/ a5 O; b next;6 s; I, t! A5 Y. a
3中断语句) k2 O6 K2 ~: m. T, u: V
waituntil <condition> prio <integer expression>;
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8 X4 x& g! T8 |% F- z以上为常用的函数！
9 S( O) i, C3 X% S# l还有很多，如有需要我把资料发到你邮箱里 . ^/ w5 c3 a- `3 r) R
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