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发表于 2012-11-13 08:48:12
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1判断语句7 h' W q6 o, `$ m8 r. R5 r! R
if <condition> then
* ^0 Q* `$ ]& C7 t/ @5 |7 L* w <statement sequence1>;& v3 E9 k% O/ t( |
elseif <condition> then7 |/ {! v4 _) g% W1 f
<statement sequence2>;
7 |6 s, s( a- q2 u$ `% T. J else
# A' u/ @/ V' U3 W$ e <statement sequence3>;6 S" O# [7 `! ~ B
end;' G# A: r5 S9 a. O' I
如果分支比较多，用：# I- S" x: c) s3 [" M- b
inspect <expression>" D* J% A2 @! x8 I
when <constant_list> then
$ W5 \5 Y' h! O <statement sequence1>;$ R$ _3 M0 c# s" h
when <constant_list> then; q" H3 z" O. B9 I/ K
<statement sequence2>;6 G$ H! Q) m9 y1 E
...
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<statement sequence3>;5 _' i: C$ E$ u
end;) [% n" s& P. a7 C% `! b
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2循环语句1 Z4 d0 q$ y9 j6 Q
(1) from <statement sequence1>, Z) ~8 o$ w$ c9 o6 q3 X) k. C6 ?
until <condition> loop
0 d G$ @; U8 m <statement sequence2>;
* Z. l* S' A. _6 a/ ^% U5 b end;
2 h( a; d. q% W4 k- t) K0 q8 C% j (2) while <condition> loop( K9 J9 F7 ?# ?
<statement sequence1>;' q' y; c) y: ^% ~
end;
5 o- w! f: O1 F3 U (3) repeat
* W0 `% A& f8 l m3 q( S; R2 _ <statement sequence1>;4 E0 b+ E2 p1 p1 M I
until <condition>;& L, k- u: p- v* g. M- Q b. d
(4) for <condition> to <condition> loop
; ^7 B. p5 K" s: o# S- o <statement sequence1>;2 R7 |) U" ]( n, {% H$ Q! q j' A4 t
next;: u8 p8 h1 W" |: N* S
3中断语句8 S. k# E7 R3 Y+ x9 q# d4 m4 O2 U
waituntil <condition> prio <integer expression>;
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5 ^$ x" ?- z8 _/ U; O% j以上为常用的函数！% K0 k0 [8 C" _* i4 N
还有很多，如有需要我把资料发到你邮箱里 0 X* M" Z, H) `0 \
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