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发表于 2012-11-13 08:48:12
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1判断语句
/ c- O) I' @/ {* |. b& ^ if <condition> then
n, j. l; N; j5 r! I/ ^ <statement sequence1>;+ F! R- {2 i3 J z$ O# ]
elseif <condition> then
1 y/ i+ u9 ]) g: W8 \4 O <statement sequence2>;
9 J% l- D' o7 X% O. m else
" u" q5 ^' X' y+ @2 j4 P3 Q <statement sequence3>;
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如果分支比较多，用：
8 ^+ S7 \; n7 P% Y! k- G, s; f inspect <expression>4 Y9 E& w% X5 Z9 s9 t3 g. ]
when <constant_list> then
f, }- t" T, t* f0 i$ } <statement sequence1>;
8 U i: n- A5 L when <constant_list> then0 _$ h7 x! }& P
<statement sequence2>;4 C5 L+ `5 U, p, M6 U" x; I9 }9 t. t
...! m1 m9 t8 Y0 R5 T, {/ S
else* j, ]4 ` @% S% H4 o7 e" t* i$ W! V
<statement sequence3>;' U8 c, B) |; o ~1 g$ p
end;8 p5 @/ [) K' X2 A! r
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2循环语句8 k3 I: K# l2 ?( ?
(1) from <statement sequence1>
F. d9 v3 C: i$ a6 {/ A$ y until <condition> loop; ~# z# Z% _$ S) p
<statement sequence2>;
& n: `+ P" g" v6 L end;9 N2 c- @7 o p' T- B6 `
(2) while <condition> loop$ H6 e; m6 J' }2 J! x
<statement sequence1>;
/ _1 A- ] Y. [; S- P2 X end;% W N$ O6 j( {- f. Q, `
(3) repeat . I( M- s) h: B' v: S& |% R% R Y1 Z
<statement sequence1>;/ z/ h5 r$ n- o7 h! q8 [
until <condition>;
7 ~% |9 \' [8 I% {5 O0 ` (4) for <condition> to <condition> loop, ~5 ?! V( l) F1 T! S
<statement sequence1>;
: T/ H6 `- R. k/ a$ M0 ?: g/ s) h next;* r. f Y! }/ T0 M
3中断语句
; P8 n' B. `' |# G2 L; ? waituntil <condition> prio <integer expression>;
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5 h) G1 Y2 I* _( q4 G1 |, n' h以上为常用的函数！
9 F" @2 P9 r) a- h还有很多，如有需要我把资料发到你邮箱里 : y- f3 R5 w3 H$ Q; C
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