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发表于 2012-11-13 08:48:12
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1判断语句3 w/ @3 U7 {% X9 H
if <condition> then
- t7 e, w: p( @! x) [6 d. I; L4 n <statement sequence1>;
. a0 M6 k# e) I" M" p5 s elseif <condition> then
9 y0 y* X1 Y& T# w2 \' m2 H4 E2 p <statement sequence2>;8 d' K1 N, k- w; ?4 K
else % x0 ?5 R" x1 X2 H1 H
<statement sequence3>;/ Q J! ~+ L9 ]" Y: t
end;* C; f D) G- W+ X
如果分支比较多，用：
1 R1 ~) |5 F" k- C. B inspect <expression>
9 @3 X8 `2 [, J0 j; Y, a when <constant_list> then
; |9 Z, @8 }& M# N9 I2 ]: n <statement sequence1>;
( E" ~0 s# x! s1 U, B+ p6 Q when <constant_list> then4 O4 Y5 ~' q! z2 r2 m. i' Z
<statement sequence2>;
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else2 R0 h# u; T K! d9 M [ j
<statement sequence3>;
" H N5 T: N3 M$ k$ E0 W3 N1 _end;$ `6 q7 }# I9 t, w v% n% m
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2循环语句) G" @- O# w2 d5 E, F% S; m" s" W
(1) from <statement sequence1>
! L3 }8 n7 G+ p$ a4 v0 x until <condition> loop
* {5 D$ h" B! j: B( L <statement sequence2>;
" e+ K! P$ X o e* G end;. R9 M7 D9 \( R% m4 E L& F: f
(2) while <condition> loop
3 X A/ A) G: _; e* {0 N# G0 M <statement sequence1>;% k1 t: g# `# ^5 r* M2 A1 h1 _
end;: S, @/ }0 A# s8 `
(3) repeat
7 }0 C ~6 ]# L* ^$ z <statement sequence1>;
* R2 X% V# P8 q0 w! B8 ^: A- c until <condition>;* Q4 |, V; L" t) e7 I& S; o x0 L9 W7 s
(4) for <condition> to <condition> loop
* Z6 J. W: o6 P5 }5 T! S+ ~ <statement sequence1>;
" F; \$ S3 E V6 _1 X0 ~& R next;
% o R+ I( [" [3中断语句( m! g! H& ~& o2 E) P$ i
waituntil <condition> prio <integer expression>;6 R/ w5 k( F+ s" B
8 h8 r3 {/ T! a" i. _( y
5 i1 y# E2 y- D2 V以上为常用的函数！
, `$ T3 l. o/ c9 ^- p7 d j还有很多，如有需要我把资料发到你邮箱里
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