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发表于 2012-11-13 08:48:12
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1判断语句/ H: i% t' m7 E5 K
if <condition> then
& N: @( N6 F* K3 N9 Q) a( ]% t9 [ <statement sequence1>;* q/ z) i* L0 q/ p, Q- \1 z
elseif <condition> then8 z3 }/ t1 Q( `; a y$ W. N
<statement sequence2>;
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<statement sequence3>;% [3 b2 o) P8 y x* y
end;
% q) y3 ]; ?, t如果分支比较多，用：0 I5 _: w5 v% x) `) [2 l+ U5 f& S
inspect <expression>0 \* h% @# \7 I) T
when <constant_list> then0 _1 e% d7 l1 Z4 H# Z# p3 U% Q5 ^+ E
<statement sequence1>;' n4 K- p3 N A; g
when <constant_list> then
0 t- y" w. Q* v+ Q" G* h3 G! @' P/ S <statement sequence2>;- a/ O- j. ?# h, S
...
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<statement sequence3>;. k4 M% r* q8 B" p5 X
end;
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6 Z3 J9 g' I) e9 H$ E- q- S% G2循环语句
2 E. m. F. s# h3 l8 x6 b; V (1) from <statement sequence1>
: {. C# E$ I, m& \2 c% b- Z6 } until <condition> loop2 V2 x; B9 e7 i" K' x
<statement sequence2>;
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(2) while <condition> loop
8 V( f$ |. ?$ e+ D <statement sequence1>;0 I. l- Y6 V# q C+ i8 W" k
end;& e x* ^% K2 H2 ]# s1 f
(3) repeat
# i& h1 L3 R" {: I' j <statement sequence1>;
0 w2 q3 Z! d+ ~ ?- M6 O$ B until <condition>;5 V" x' }/ q* c0 s0 G% ]( \7 _) S
(4) for <condition> to <condition> loop
* t) A( U* p. C7 r8 J <statement sequence1>;1 O1 S& D$ D2 W0 U3 o, v) E; @: g O
next;" W( ]/ W! Z# F# G
3中断语句
P+ n% g% U# `, @; \5 [ waituntil <condition> prio <integer expression>;- \ G8 d$ Q) q/ h: j
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& A, ~; O# U' B" V. X; a6 s以上为常用的函数！
3 n0 N7 n4 y. l T7 J6 x还有很多，如有需要我把资料发到你邮箱里 8 Y ]2 T: S; H3 n1 R. s2 W. d4 x
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