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发表于 2012-11-13 08:48:12
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1判断语句5 {6 D" S R: L( Q6 b/ y
if <condition> then
4 O& v0 X2 h+ ^' s2 M6 C; B5 n <statement sequence1>;' a9 D4 }+ h% A: ^+ l2 i+ d
elseif <condition> then& K2 }. C8 E( v; P5 B7 J6 m
<statement sequence2>;
9 G9 B; _4 n2 j5 k else
" w' \3 A& L( F) `# O <statement sequence3>;
1 B' L, N4 b+ u' h/ ]: M/ ~ ] end;
: h, U+ g* u3 H; R5 m+ R如果分支比较多，用：
6 U p) T3 j" c) r inspect <expression>8 {+ F( v7 @. T3 r. w* O% h) _
when <constant_list> then: _5 ?/ `- u/ W- V. K% Y. O4 s9 u/ l
<statement sequence1>;
6 w4 O; g6 O U! ^' S4 Q when <constant_list> then
8 P# p$ c+ `( F <statement sequence2>;8 \2 H# C+ X' J6 \
...; z& ^6 @1 |5 y v& I) m1 y. N
else$ j0 z; A n7 R! y; R
<statement sequence3>;0 N) r' [1 U$ Y) h
end;
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/ u% g2 O& F: d) w% v* Y4 r2循环语句+ x! I) q; `, v- Y
(1) from <statement sequence1>
( T, e, K" P9 f8 C: H4 k until <condition> loop- @/ e. g+ _+ g# U* f9 E. x+ { x4 p
<statement sequence2>;
/ n1 v% ]* b' {. c# R2 V' k end;
( F3 I, ]4 Z4 {$ q (2) while <condition> loop
" m% _/ r6 h9 g$ L8 s6 R! h <statement sequence1>;7 e+ g2 s! {9 f: d' B# T
end;8 D' K1 S0 m) o, ^6 P
(3) repeat # S4 U. L% A& ~4 B
<statement sequence1>;
% B" j: b5 M# J until <condition>;
1 q# J$ k6 a) T( B' C$ m- @ (4) for <condition> to <condition> loop
4 P8 b& Z# \; l. v( ] <statement sequence1>;+ z2 w, Y( Q6 ~* d, l
next;; F. F% U ^7 \2 F
3中断语句
* S- J3 B: Y! x' G* l; }' V waituntil <condition> prio <integer expression>;, C5 a5 z. y/ M9 h) R* ?5 }
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% E {+ f5 b& e7 k# I( E0 N2 j以上为常用的函数！
# t( x7 b* G# V0 X, O* K还有很多，如有需要我把资料发到你邮箱里 - [, b+ j: A, v1 ]% q/ }. @" u
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