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发表于 2012-11-13 08:48:12
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1判断语句
/ F- n1 K* t: y+ g# T if <condition> then
6 F5 N4 ~6 I1 `$ \ <statement sequence1>;
N& W/ D3 A; U2 ~$ v+ f5 H5 p elseif <condition> then, K7 q. @+ O& _$ u6 E
<statement sequence2>;
+ P2 [7 l5 N" y6 n) X7 Z. z else
; v' o+ m+ H6 [, x <statement sequence3>;' ^7 }# `, g4 u0 B' r
end;" }) G8 {! M& ^7 K$ h: ^0 C
如果分支比较多，用：
- R* i3 O K1 _4 ~ j* t7 j8 I inspect <expression>/ \3 _' @ M$ S: u
when <constant_list> then
0 T4 i: }0 Q6 A, n( R, { <statement sequence1>;
7 b+ \$ ]0 X. w8 g* }, \$ z when <constant_list> then
1 W* x s2 E! l Z <statement sequence2>;
3 x5 b7 X+ p7 C K' ]0 z ...
$ K1 [, ~% j3 X) x# D else5 _9 Z% V/ k0 d) O) k/ F e
<statement sequence3>;, u) y* V& u# ?4 W( M( _ q2 p
end;3 T: o d0 O- G9 [5 n! s
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2循环语句, C2 f3 H$ M1 N% Y2 b2 f \! B
(1) from <statement sequence1>7 l8 {4 B+ Y; U+ E
until <condition> loop& @ S c5 s F% U8 X" f( f
<statement sequence2>;$ Y, i2 r8 t. X5 y, z$ Q, B4 O
end;1 ? S3 n5 O* \
(2) while <condition> loop
- A, C1 u, }2 c" ~5 [* G <statement sequence1>;
9 K9 r/ k+ V E9 F end;
- ]: i: v* J! V1 j6 d& G( D (3) repeat : c2 x, u' T5 f1 J
<statement sequence1>;
: D6 [+ A4 m3 f7 C( V0 _$ q until <condition>;
# f4 b8 D. I. w5 O (4) for <condition> to <condition> loop7 E2 S& I% n% S' |
<statement sequence1>;9 s1 w o9 A8 z V) p& K* `/ u
next;' g# k+ o+ v. D+ F; t t
3中断语句
' k+ r4 R4 Q F waituntil <condition> prio <integer expression>;8 g9 f' y: ^$ F4 ^* K/ L0 B
9 m" s3 T- o1 a4 \) E8 J8 j8 A# E% I4 g- g: Y- {5 j: f
以上为常用的函数！ S7 W3 k9 m9 U r# H3 f
还有很多，如有需要我把资料发到你邮箱里 & j- h, J! j- T# i
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