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发表于 2012-11-13 08:48:12
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1判断语句1 ]+ l4 t4 B, g4 R+ ~! \$ B
if <condition> then
2 u# p9 u2 f- ^ <statement sequence1>;
- w n0 l6 @$ S& v0 A elseif <condition> then
, T1 w# E7 Q/ I3 I1 r; i <statement sequence2>;
9 G2 @3 e8 q: A! `; e7 G else
$ d8 U4 J% z1 Q0 c# T <statement sequence3>;
% }( Z' g6 S/ o e end;
: o1 P1 o8 z0 N2 ~/ `; i7 C; m如果分支比较多，用：
6 f* T; @! D8 W, w$ A inspect <expression>6 e3 e5 g5 W9 w9 }% o- v. b. H
when <constant_list> then( P6 n: [! y2 }( O
<statement sequence1>;
% L8 a Y' ~. B, j) z when <constant_list> then
# e* ^$ u( l8 ^3 g+ I2 Q% n# ^ <statement sequence2>;
$ y1 O2 s: b' K- t( }2 R! k ...! I- y$ I- n, {5 L4 q3 h1 ?2 E
else
% d. M: ^5 J% n# f) [! d6 O2 r <statement sequence3>;
- B/ h. g: z( q: }% G0 ^2 D( Xend;
4 N# \# w" P- z7 V
8 Y$ F) d+ q) `) L9 N6 {6 Z2循环语句# L" ?( W7 T5 }9 v: u
(1) from <statement sequence1>
6 T% D3 t# R* H2 v* A until <condition> loop3 {% i) i" Q0 {
<statement sequence2>;
1 R7 ~! E1 T+ W9 R9 H; h8 V end;
- k) d" T7 L6 b' E3 W; L (2) while <condition> loop, g. Z2 |. \- f* r) S" z' a2 `* M. {) O! J5 f
<statement sequence1>;
r7 }; \% @' }1 ]& A end;
: `$ |: `$ s: B* h, Q9 j (3) repeat
6 Y8 C9 ]+ p3 o+ _& {0 D <statement sequence1>;: f m% K; }! f9 K( T1 X" p
until <condition>;
4 R! |9 A0 s2 K! G* N0 z, ~# i (4) for <condition> to <condition> loop/ y5 \. I1 }: j7 C
<statement sequence1>;' R8 N4 H) | B X# ]9 R
next;
0 _" j3 v4 L7 |7 p3中断语句5 @( \- O8 H( g" }6 z6 _
waituntil <condition> prio <integer expression>;* x# v0 x, [. W+ b2 h+ i+ G3 S* J
: s$ B7 W( L/ ~1 \$ S
5 M, ~' S) o8 v+ ^' O- M以上为常用的函数！2 S( x( V9 D$ r. x+ C
还有很多，如有需要我把资料发到你邮箱里 3 [! ^* ]1 q' d; P `- g% k9 r5 e1 U
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