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发表于 2012-11-13 08:48:12
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1判断语句
6 J, L8 D$ a) W2 x0 K% R% Y1 H if <condition> then
1 X9 P8 j8 h0 u$ c/ { <statement sequence1>;
, a! K% k! G9 M elseif <condition> then S. |5 ]% Y5 Y: n2 _
<statement sequence2>;$ T! I1 L' F- E3 P
else
5 a$ e4 ?/ r$ d' g6 }9 h* z <statement sequence3>;
8 `* o6 j& g% m& D3 K end;$ @. [4 D+ V! X/ } V% m
如果分支比较多，用：* g1 v& `& U1 a% f" F! p
inspect <expression>
p1 U2 H! {, {. g& m0 L3 K when <constant_list> then
) p! m1 ]/ e) I2 P$ [) w <statement sequence1>;2 s+ E$ w3 ?! P1 A U
when <constant_list> then
0 C3 s n0 |: ?6 K% P" Z$ p <statement sequence2>;1 \, |3 H) E* L4 B4 \, V
...
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<statement sequence3>;4 {6 U# s, ~. \3 A! b2 e
end;
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2循环语句- \+ P' p6 ?! G
(1) from <statement sequence1>6 j- s& w# {0 w8 ~, x# ~
until <condition> loop$ {" X* Y' f/ m3 P! z, q" o& L
<statement sequence2>;4 n2 Y% g. |. H5 Q0 X8 | |: h" n- E
end;
/ P- |+ i! H# }) K9 x2 ] (2) while <condition> loop
- E( C y% q- R <statement sequence1>;3 { S" s( p7 }& {, b
end;: z3 e9 ~, U4 P% }* H
(3) repeat
8 C" D/ z( Q% a8 k2 V& N <statement sequence1>;/ P p7 T, |7 d8 {) C
until <condition>;, m; W% N1 F, L# ^ q' d
(4) for <condition> to <condition> loop* N, D' n7 S) S
<statement sequence1>;- p j+ h k& o# [3 k7 X7 h
next;0 g" I! s j8 w8 r9 p! A
3中断语句
" y% e# c _; @3 C waituntil <condition> prio <integer expression>;2 X7 M4 T- i$ ~* K+ l
/ d+ e: `# P, [% i
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以上为常用的函数！ }" I" X2 f( U# j# I- K6 l
还有很多，如有需要我把资料发到你邮箱里 / B& a+ I! V; Q8 s
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