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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
2 ~, B3 P' [8 t8 Y6 T3 S6 {9 W if <condition> then
7 C" G+ |# `9 Y' W1 U8 X' G& \* F <statement sequence1>;
% j8 ?$ b: j& Q8 K6 ` elseif <condition> then
. o. u" x/ d" F0 u' S <statement sequence2>;
, v+ Y ]0 M7 Y5 C% Z7 e6 p else 3 K3 U5 Z# u' M4 r2 M# _% X( t; |
<statement sequence3>;
! l( |3 Z; q7 ]( u7 g0 C6 S& [) V end;
+ h' f- s' X/ ?如果分支比较多，用：( n/ }4 @4 `8 X( ` A; F. k: `
inspect <expression>
7 I4 F5 @3 }4 `5 q when <constant_list> then
`: y; u- Y: V- e9 L3 W <statement sequence1>;. Z# o: z' ~6 S2 G( q
when <constant_list> then
+ D) V/ n" I9 R4 x; |) ^" ? <statement sequence2>;+ \8 ~! U8 ^5 a, i' d
...
7 v9 L% E1 e; n# l6 Z W else# g" V) P2 k* W: w
<statement sequence3>;
+ o6 u, h3 ?" W) D1 Send;
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2循环语句
' x/ Y9 Z4 ~+ p& m- f) W (1) from <statement sequence1>
8 [% ~4 d. q5 T' R4 @, D until <condition> loop" i7 J4 W: z% u8 m9 O$ i
<statement sequence2>;' u5 E& _7 J/ Z6 V
end;
+ B) d8 K/ z- A$ z8 H) i (2) while <condition> loop
+ Z8 f6 w0 G, O/ L" u6 A( j$ s# T <statement sequence1>;- V" T. y8 K2 c* U+ Y D. I H
end;- P3 D: `' _/ [1 E& F) ?6 c
(3) repeat
0 [+ u: W" ?$ D, {' j4 u <statement sequence1>;
6 m$ V; O% |5 Z) U until <condition>;
' Z- O% \, h1 V (4) for <condition> to <condition> loop$ J0 F8 R7 @* q! U2 p, ^ j
<statement sequence1>;2 e1 P Y; o. S/ O' f1 z; |, w5 [
next;2 W/ W2 K! I6 h
3中断语句
# @* J" Q7 [4 P. R4 B1 H waituntil <condition> prio <integer expression>;
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$ Y. s; }5 h# c7 u& D以上为常用的函数！
" e8 m3 Z0 }. L4 X) W* b: ~还有很多，如有需要我把资料发到你邮箱里 2 o7 d# I- H( n3 ^
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