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发表于 2012-11-13 08:48:12
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1判断语句
# |% s% Z8 z O0 H if <condition> then
# O5 t2 e6 p5 m, Q7 F8 |" m+ y' } <statement sequence1>; Y' d5 c$ ~0 Y: }
elseif <condition> then
. t/ v0 o D4 E7 p <statement sequence2>;* }8 u8 [! h" P/ I/ f" x- h3 O
else 5 `: R" S- S. C, X9 a
<statement sequence3>;- ], L$ H# m% s3 y( y
end;
- m: c/ X, ]3 l7 y* p0 Y% U如果分支比较多，用：
( n: l- |) o7 c# @ inspect <expression>2 E3 K. _1 z* h% Q3 U# d
when <constant_list> then% }# c2 _* g9 v+ ? N; }* \
<statement sequence1>;( m% Z/ V9 [! a6 E! v+ @
when <constant_list> then( F4 O+ b# s5 G, L9 M3 ~
<statement sequence2>;2 L! \7 E) I. ]! Z1 B9 C# w
...
I/ n. c: f6 r5 B- \# ]$ [ else
. M4 U0 m. J0 R, M6 W; g x <statement sequence3>; X8 s: `; T' G' U% \( }! r( G
end;
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3 V1 ^2 s' k* f& R) h& z# F2循环语句
# k S5 s' Y$ V. X (1) from <statement sequence1>
, {# Z, I" N3 n9 U until <condition> loop
( U& H/ |. O2 B9 Z6 x. W9 R <statement sequence2>;1 h! m0 Q3 C, ^& _8 z
end;' `; ?5 V" O1 c8 F, Q3 F
(2) while <condition> loop
/ q+ q* N5 _6 L+ z <statement sequence1>;) d3 |% x. @) I" \! Z
end; Q( a7 t$ W$ f' C0 h$ E
(3) repeat 2 A+ ?2 Z8 z, e4 n1 m2 h
<statement sequence1>;1 P! [) h( n! H# B1 V
until <condition>;" V/ X# w$ v+ ^8 X0 y) p
(4) for <condition> to <condition> loop% `" `" H: D- N) d! X
<statement sequence1>;
) n& C: x' R i- _* ?' ~ next;4 J V. u# @; T8 H
3中断语句) @$ k. x4 e6 u/ |1 {
waituntil <condition> prio <integer expression>;
# R: x; \5 I2 ~& d) A5 Z; j: d" ?8 p6 d8 y2 ]
5 u' H g5 ]& ?* ^& O2 i
以上为常用的函数！( u2 O) P$ Z C& R, U( i
还有很多，如有需要我把资料发到你邮箱里
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# [8 [- f6 r# L# Y8 ^3 V6 l! _* ^; B5 U' S; t/ p9 y
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