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发表于 2012-11-13 08:48:12
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1判断语句
2 P; U0 l9 @4 }& G# R) ] if <condition> then. k- l* h5 ^7 k: c+ K$ r1 {5 T
<statement sequence1>;; Q! k+ V& j3 O
elseif <condition> then
. ~ N# }- `0 u4 W% C8 x& M <statement sequence2>;8 @0 B. h' A. @5 S
else
5 f' Y2 w3 K' d. J* X8 r2 O# V1 S <statement sequence3>;
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如果分支比较多，用：
0 O5 x6 S/ d$ F, N8 q inspect <expression>
$ h9 c( N& l. N; S) c: }0 E$ a, A4 W when <constant_list> then
4 y5 W, I0 S9 O0 B# K7 |$ }# m <statement sequence1>;
8 K. b- r5 ]4 m1 @4 q' c. _ when <constant_list> then5 O% l# D8 W2 g5 t' [
<statement sequence2>;' J) Y& ~- ^6 q( b8 ]3 L) f
..., ] g3 p& C* z! E1 k
else4 }4 [6 v3 P2 ]" {3 P: `
<statement sequence3>;$ T6 T) M8 u+ j
end;- G5 Y: A' ]+ c$ I5 _" Q8 p
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2循环语句0 C% k0 b: S. l
(1) from <statement sequence1>
% W4 o8 Q! ^) S( ~0 D until <condition> loop
* a( T2 x. v. p2 W <statement sequence2>;
2 O) V8 N: F. N$ _ end;# C* i" Z4 y8 p1 _ C) l* f
(2) while <condition> loop
+ V! |4 l3 ^# P" f& f <statement sequence1>;) y' L" `2 E, f/ G- M
end;
0 |9 Z- Q# ^% _( F( r9 B (3) repeat : |: ~; p/ ]9 F4 ~% ^& j8 s
<statement sequence1>;9 l$ ? ]6 T- \
until <condition>;
( |2 d0 T: m* q (4) for <condition> to <condition> loop7 Z; n5 P! o O/ m
<statement sequence1>;) x6 b+ ]' u \0 ]" s/ M: Y/ w
next;
5 O0 y- o0 @* P; O! Q3中断语句3 l% [1 S5 c% a" A
waituntil <condition> prio <integer expression>;
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以上为常用的函数！% a. S7 N5 o, z% y2 E0 |+ ]
还有很多，如有需要我把资料发到你邮箱里
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