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发表于 2012-11-13 08:48:12
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1判断语句
. r1 ]- M a4 K9 z. W/ X if <condition> then3 B4 \6 U# j; _) w9 c' n
<statement sequence1>;
4 N$ C" O1 m$ {- N, Y" H3 y elseif <condition> then
( D8 r8 a* J6 f <statement sequence2>;
6 g3 `1 E% X* n* v: v {9 G _ else 5 F' s& }% ~( J: X t) {
<statement sequence3>;% S9 j8 W: U8 Z- S2 g
end;
% `$ W2 g7 P- ^0 ?" W _如果分支比较多，用：
; W6 [& y' F# @" T/ { inspect <expression>' D4 X: s* W5 Y/ |+ h5 R) D
when <constant_list> then
. }, S) L3 P* ~2 l3 M" V( @ <statement sequence1>;
- ]2 c% m" }; \4 J when <constant_list> then' X* ?5 F2 T5 ^9 T$ D/ x4 b5 Q
<statement sequence2>;
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else9 Q% s# [) ]8 F9 c' Y1 X- T
<statement sequence3>;+ p6 v6 R$ b' c' O$ j
end;& K, P0 n/ j4 M* J' S7 q
" ~: o+ t/ O- N/ w6 y- e2循环语句- e" w+ T4 A/ M2 |1 F5 _
(1) from <statement sequence1>9 {7 ^9 E7 c3 y- h- f+ e! z! H2 I6 d
until <condition> loop5 p& O1 Z& w- r! g2 [# Z7 y+ e9 F
<statement sequence2>;4 }* A, s9 m, F4 e6 w
end;
a3 n# j! z; h+ p& }& U1 e1 W (2) while <condition> loop3 t V% v; U \ Y7 G' j
<statement sequence1>;
, v( D, `, {$ j9 X end;1 p) W5 e) t6 T
(3) repeat 6 C, D' \3 p Y) Q) m" S
<statement sequence1>;
5 ?! Y, E9 }8 G' m& m until <condition>;
9 |$ v, u: {! d3 @- w9 l (4) for <condition> to <condition> loop/ [$ U) z' @8 Y& E! y$ D( E8 a
<statement sequence1>;6 E" q& j, U2 g) G5 }1 f, Y
next;$ f/ I) h* B: R# d6 f! v3 Z
3中断语句% M( j0 d. |. E) ]4 S
waituntil <condition> prio <integer expression>;7 Q0 r3 H# u2 A; j6 D
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/ e2 ~" n7 c1 ?( z) e! [以上为常用的函数！2 K7 r0 U1 @; @3 b
还有很多，如有需要我把资料发到你邮箱里 3 B! U. J% S$ E
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