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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
! v6 C- O$ i4 H$ o& g( ]+ q if <condition> then
; R, T9 _/ u0 w% }, | <statement sequence1>;& N6 ~1 ]* d0 J2 I) z5 h d. Z
elseif <condition> then
& j. J9 C. J+ ~6 ` <statement sequence2>;
1 {' r# u! `& H" i) t3 W$ C else
( X3 T) y/ X6 j$ L <statement sequence3>;9 R, a$ G4 u4 g1 \" P8 k
end;% g4 H' A$ I4 [# G
如果分支比较多，用：- W: j! p- s; X# J
inspect <expression>$ {$ y D% P7 z5 P
when <constant_list> then
" F0 w6 c. B$ m6 y& X: H <statement sequence1>;, k( K; e/ O9 F7 E
when <constant_list> then. |6 t: _- f& w! h/ L' Q' J
<statement sequence2>;
S, o, b( y/ J1 Y1 d ...) ]) Q1 X% P* j4 w
else
5 U; y9 { S; C <statement sequence3>;* M' b/ w% b3 S) W
end;
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2循环语句; D' Z" |1 V9 i: p$ C% E" t' g" p' p
(1) from <statement sequence1>
, b1 ~# I: p8 ` until <condition> loop- o9 P7 m! v$ Z0 f
<statement sequence2>;+ c3 B9 A2 z, v& |
end;
$ o" R# t5 ?: ^+ i, m* J (2) while <condition> loop
* \# }* D: c. B- [9 X2 _+ N3 O, \ <statement sequence1>;
6 z9 h$ B/ S3 H+ W1 A( K3 s end;# P9 ]. k9 G3 Y5 m* D
(3) repeat
5 a! F$ _1 O, M8 y <statement sequence1>;
/ C: I+ R1 B: Q. I8 {" y% a$ _ until <condition>;- F& S2 p, r2 x& ]4 ^: B
(4) for <condition> to <condition> loop) ^' r" e- a9 g1 N7 U2 C, _
<statement sequence1>;
0 C2 z9 j' W! x" g next;
5 @3 x6 ?+ h2 O2 T( Z) {3中断语句+ g$ D! E; M o& J) s
waituntil <condition> prio <integer expression>;0 {" f4 X, H! f, t& c3 ^
6 {( T2 e' v0 q7 ~
3 n6 w& r8 t6 V$ t/ D( l以上为常用的函数！
2 O7 a$ P w5 S! n2 b- k9 n# l还有很多，如有需要我把资料发到你邮箱里 * }5 `2 z( }3 o2 H6 q6 P) `) x0 C
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