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发表于 2012-11-13 08:48:12
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1判断语句
) [: `# c2 O- N& k3 s" j( j4 u if <condition> then* C2 k1 w2 Z; R( @' p
<statement sequence1>;% m2 `4 t8 M! [+ S
elseif <condition> then
% J5 |! G I: ]# u5 l& p7 m <statement sequence2>;
5 _9 R) w5 d" d/ g6 n" G else
; z; E$ V% Y3 G, A, C! I <statement sequence3>;
/ \: V1 p, ]$ `: X9 f end;
" ~$ ~) ^4 Y( r5 y0 r# Z/ b如果分支比较多，用：2 c6 q8 t& u# F- L/ `# ^
inspect <expression>, l0 u1 K9 ]/ X J* g
when <constant_list> then e4 j. u, o/ b: d' \% P z
<statement sequence1>;8 X3 I: `$ e+ w7 [
when <constant_list> then ~; h/ p5 G# _4 U' r
<statement sequence2>;
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else
2 B( [6 q% t6 [* [( @7 }( y. G# _5 k <statement sequence3>;
& `. Z7 i0 H% Uend;
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' q" P6 d6 a3 j* q" d/ y2循环语句
' H, G3 ?$ w: b/ ?8 P- m' C. Z (1) from <statement sequence1>
4 o$ m2 R& R* ?# B+ g until <condition> loop+ v$ J: ~* Y! P4 L* K
<statement sequence2>;8 {1 m& L- X; T! U
end;5 h; }, C: w- f
(2) while <condition> loop) m: w; B) K0 k+ H- V
<statement sequence1>;
( x; l5 y* K, p) R% C' x6 x end;
9 `8 M; D7 Q( y1 ?7 U- b( B! W, W/ {! e (3) repeat
* d% K+ C% e4 D e0 g9 f <statement sequence1>;. Y- h# W @, ~ C' i; T
until <condition>;
* A- K. Q; M p) z" a (4) for <condition> to <condition> loop
! C0 A! f( K' U <statement sequence1>;
9 u- ~" Q; ^* n+ N next;
; x; U4 I) K# r2 [- a; y( ]+ T! D3中断语句
( ^; Y9 h2 z3 R waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 Z. J7 U; u: w& K U+ f3 g还有很多，如有需要我把资料发到你邮箱里 . N1 i8 ]7 q( H
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