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发表于 2012-11-13 08:48:12
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1判断语句
& p4 c( Z& ?3 V3 D if <condition> then
8 V; ]# |8 s0 Q0 t <statement sequence1>;# U9 |& G2 w: J) {. C. z5 S/ Z% \
elseif <condition> then
3 S8 v2 p2 x( _1 ^ <statement sequence2>;
8 E+ Y( g% G+ ~/ o* l% F4 K else , M0 A& \$ {, w- ^/ A \: B& |
<statement sequence3>;, |2 n- c4 V9 G9 D3 T
end;
8 e2 F& u6 f2 N$ |6 z如果分支比较多，用：5 e7 c0 W: A5 I& |7 l
inspect <expression>
6 C( D4 p& x! A4 r3 b$ } when <constant_list> then" a. \; V* b: X: V: q ~8 l
<statement sequence1>;
L L5 t; y" _# s" F when <constant_list> then" H8 s( m7 Y8 R J6 a
<statement sequence2>;
$ `! h7 m/ c f! s; a/ U( I ...
. e. v6 S! }3 P) R. Y else# ~' \* i8 h! j
<statement sequence3>;
5 Q6 {0 S2 \7 n! U% Z7 [end;
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2循环语句9 |/ U6 j! Q. A1 ]: B0 F
(1) from <statement sequence1>7 u+ I' e3 h' D7 s8 m: @& ]. ~5 r
until <condition> loop: f- F9 o1 t5 f' K b
<statement sequence2>;
, f" q( Z4 {5 i D6 F6 x4 l ^ end;
: X( t5 v U* v' Q) a W (2) while <condition> loop
. |) K+ [$ i1 \7 ?4 q( s6 \ <statement sequence1>;
0 |* N$ ]! D5 i, d& n( X4 X1 y. L6 T end;' V% I* H9 D/ @+ i; Z+ M" R
(3) repeat
* I: u( r1 |. t$ G1 b4 {& n <statement sequence1>;
7 P" V/ }, H' `$ V9 U, D% |9 W until <condition>;
2 |3 @) B' t) B+ ^2 Q (4) for <condition> to <condition> loop
- k3 ~6 E) } G8 u <statement sequence1>;
# K* ^/ g0 a; t! m4 m, G0 ^ next;
& G' ~" a8 I2 h) B. [$ v2 X- `3中断语句0 f8 L7 [$ f; x/ N4 F5 u0 S
waituntil <condition> prio <integer expression>;# P7 W0 M& u. F' \
) @, ]- N9 Y: D6 t' i$ m5 ?
& d! L3 K# z/ ~) G6 H0 z以上为常用的函数！
1 w! l8 O( ?3 d! y W还有很多，如有需要我把资料发到你邮箱里 9 Q! B5 t+ _. u$ r8 v' V. E- ?
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