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发表于 2012-11-13 08:48:12
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1判断语句
1 s" U; d7 T. ^' c if <condition> then% N' K! f8 i: l+ v |9 Z+ l
<statement sequence1>;" s: A7 j+ A9 S4 ~+ e
elseif <condition> then$ _' F5 g' L! [
<statement sequence2>;4 A4 U# H) p8 G7 F
else 5 c7 N- U- z9 C+ I
<statement sequence3>; o% N7 x. \$ }- u) {9 \* R
end;6 b) }8 o/ d/ o- j p9 w' M
如果分支比较多，用：
! E H4 m# o% ]7 C+ k inspect <expression>
) P) Z7 k k2 N, t& h when <constant_list> then
1 S' s$ |' x& J8 @( r- Z+ g: \ <statement sequence1>;
z$ p' f; I5 J when <constant_list> then
5 }! N }% n" | <statement sequence2>;" H) \* a) y. ~ z
...8 V6 e8 B: t. N( [
else" M8 l9 }' B4 ^# x H
<statement sequence3>;" N' O" T+ U2 j+ C9 G
end;4 U9 Q* |1 j( `
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2循环语句8 a4 P; ]9 u* M# l8 X
(1) from <statement sequence1>7 T* q% Y; ?: |8 b( s, z9 h* |
until <condition> loop4 ~3 B i& G; M" X u- q2 i
<statement sequence2>;5 \4 `0 [9 Z6 l
end;/ A4 R" R$ t0 V7 V$ `% I
(2) while <condition> loop
) C7 a5 n& f5 h <statement sequence1>;
1 k/ I. J% Y5 y$ S end;8 e! ]3 o* e% x3 B0 d" m
(3) repeat
9 f; M- s; @, k# I) X+ t. C: A <statement sequence1>;8 L+ e2 r# ]0 P7 b6 g& [
until <condition>;
. W# n, ~4 o9 t, b' F: I* g (4) for <condition> to <condition> loop
+ f3 y, u- \! i3 P1 [/ ] <statement sequence1>;
+ M* x( t3 X j next;( I- R: }$ Z$ r) p8 ]+ F
3中断语句! X0 @5 n# `6 c- n- R
waituntil <condition> prio <integer expression>;
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+ d* C j) x N) e" T+ x以上为常用的函数！
, _$ ~6 A* ~) V; J1 c8 w% w; O还有很多，如有需要我把资料发到你邮箱里
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