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发表于 2012-11-13 08:48:12
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1判断语句
# L9 Q2 _ x: I% H& N if <condition> then: e- g5 G+ _2 |' `1 i
<statement sequence1>;
: @) J- D$ h6 V elseif <condition> then
1 b0 ~$ c# \" ?: _2 ~5 d <statement sequence2>;
4 z( W1 y- l' |# g4 e4 s& y' j/ n else
0 R, j7 @, Q, y" S! W. [) O" ?# g <statement sequence3>;0 a6 Y% ^, S3 @! ^
end;
8 D' _6 t7 L4 R, K如果分支比较多，用：3 J4 @) ^4 p" A! T, T3 ~
inspect <expression>
4 l/ H) |" t' [* K8 V when <constant_list> then
4 m. L+ l& n6 h9 s6 i <statement sequence1>;8 |: C+ \" G" N% K: u8 a2 f
when <constant_list> then
; K4 o# ?1 y' ?0 e" B; Z, X$ G& R <statement sequence2>; s3 r& p8 S1 L0 {& |9 R# V! `
...$ A$ R' o9 S, P: E: M
else- g5 {6 s3 o8 `. |
<statement sequence3>;4 G, G* G: E! Z; a2 w' R0 f
end;
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- }* g) K. x0 v7 H2循环语句
7 ^9 f9 Y# |8 [; ~& Q4 g: V (1) from <statement sequence1>
: |% Z+ _; D5 a2 @' i1 e. c until <condition> loop
A. v% l; N' U. ~6 H <statement sequence2>;" w* H2 V& C; G6 ^# \
end;
( F1 k. U: {: {$ n+ @# U (2) while <condition> loop
$ B8 u" G+ p& Z$ ?4 [ <statement sequence1>;
, w. a$ j7 z( X end;5 l- N3 G2 j- m
(3) repeat 1 j) \ N* v1 d6 D
<statement sequence1>;" k8 t3 q" ~5 C$ u
until <condition>;
6 Z2 t) u" ^+ m" n4 N) F: l (4) for <condition> to <condition> loop
9 e7 D p, y6 J3 c. ]9 a6 { <statement sequence1>;
4 d) V; ]5 v" D, G+ n( t next;$ G' R6 }% J2 a0 k6 X2 D4 z+ W
3中断语句9 m& v" m# q: z! _6 C' L" k
waituntil <condition> prio <integer expression>;
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以上为常用的函数！% ]6 S9 o0 C9 ]8 A: R( W1 q
还有很多，如有需要我把资料发到你邮箱里 7 D0 y' q) ?6 m( B3 h$ M" Z
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