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发表于 2012-11-13 08:48:12
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1判断语句1 b6 l, |2 I1 A) z# K8 g1 a
if <condition> then
8 O; Q5 I4 x4 D0 [' T <statement sequence1>;' }1 k; B' w2 l+ `( P% V5 U, p3 V
elseif <condition> then" ^$ s7 f% F; R0 w+ U. w- a9 ^+ D
<statement sequence2>;
# S6 u, S$ N' }( \ else
" D5 _2 i% o* f3 U( |2 i' g <statement sequence3>;
5 z* |( d- [, [) K end;
% E" N, [1 O* D. [如果分支比较多，用：' v' t& h! p& A$ m3 ]# G
inspect <expression>" C* G! V; I" J7 o* }
when <constant_list> then/ @+ r3 N4 U1 q) c* }4 l3 z# F+ |
<statement sequence1>;
) I3 N7 m3 X1 p when <constant_list> then& I9 [! ~7 ]2 h! L2 ^! j$ N
<statement sequence2>;' R, F5 p: q% X- M. R
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else
- @$ j! }$ E9 Y5 v <statement sequence3>;
+ W7 E8 _$ i5 C/ d# t8 Tend;
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0 \' [8 e5 n0 A$ X. a- O6 l2循环语句- @. `& I, F* I
(1) from <statement sequence1>
, ]3 `0 l: C' b until <condition> loop( H( t) V, R) u6 s* q* r& ^+ r
<statement sequence2>;6 l: Y" t. ]5 [" m; N9 ]$ G' G& s
end; B" d/ |& v4 `3 V5 H1 W
(2) while <condition> loop2 \4 ~ a& a/ Y0 m# a3 \% h
<statement sequence1>;
8 { O; b) H4 d6 B2 P, M7 E end;% d) r! L) E4 |5 Y/ {( [
(3) repeat 4 n" e7 s4 g# m) O% s8 G# g
<statement sequence1>;9 D, J$ d) w8 Q
until <condition>;
' n# ]. @2 c2 ]" H2 R (4) for <condition> to <condition> loop! `. D/ ]6 B8 j! z& B
<statement sequence1>;
; G8 z. ~2 N$ _+ M next;
) _$ `4 P6 d7 p ^, y3中断语句
) ` a% e# r9 M. T waituntil <condition> prio <integer expression>;
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以上为常用的函数！
" B; t7 v' q/ ?: _7 v还有很多，如有需要我把资料发到你邮箱里 6 P9 w+ Y) {( j2 |
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