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发表于 2012-11-13 08:48:12
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1判断语句' u5 a- x2 {# s( h' x7 |% [
if <condition> then
2 b( Y q2 |# a/ j; G5 X <statement sequence1>;9 N' v" H$ a0 ?+ d, w" O
elseif <condition> then
9 K% B1 S6 m2 t7 y! o <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
6 U7 v" {5 I8 J inspect <expression>
& B. P9 a0 E9 f2 Z- F8 T, R# ` when <constant_list> then
* E$ D0 d! G# s' B2 S2 W. G' i <statement sequence1>;
' x; t) d7 o9 a% l# @. G, c* G4 @ when <constant_list> then
2 ]; H6 W+ k0 H5 A# Z' s/ J) a <statement sequence2>;% l: K# q3 n6 S0 B8 f
...
q& Q- y1 x, V else
% _' ~7 M1 @0 r4 y5 I! E9 x" b2 k- o! } <statement sequence3>;
6 Q2 r! W' c' x$ xend;
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2循环语句
6 c8 S7 S3 B. d" w$ K. ?- I$ X7 q (1) from <statement sequence1>' M/ E: r( f6 g4 H
until <condition> loop
( A- I' H k) Z <statement sequence2>;# k5 J( X' g4 P" k) }. l4 E g5 p
end;
, n- G+ K9 l$ V2 m" P (2) while <condition> loop
& c/ f% {2 P2 `& N, d8 u2 o <statement sequence1>;( z, ~: a( E/ t8 V
end;, ]2 J, r, ^- ]# F
(3) repeat 3 I( N. E! l3 |, v- q3 ~
<statement sequence1>;. g8 `# C0 B' a) E& o# X& f6 c' n
until <condition>;
: V3 P$ m, K# j' L$ o! e4 j (4) for <condition> to <condition> loop: `& e9 r* s/ I+ q1 q; ~8 f
<statement sequence1>;
4 J# y5 j1 a3 e1 H: u+ [ next;
; F+ U# }5 j' k; ]% o+ ?3中断语句
4 C- [/ O/ `/ C/ P) t7 E4 Y4 f waituntil <condition> prio <integer expression>;
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以上为常用的函数！
( h" r9 y% O. v还有很多，如有需要我把资料发到你邮箱里 0 `; w! l, D7 {1 u. y
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