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发表于 2012-11-13 08:48:12
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1判断语句
6 @+ s9 N# V6 K; |; i0 \6 O if <condition> then
K3 g" H5 M" a <statement sequence1>;
1 S1 f+ C8 ]4 _! p$ ^ elseif <condition> then5 G2 U& i" S- ^, Y( Z9 J, k
<statement sequence2>;9 [& {; o" E% {1 X J
else " {& W8 [9 I- c# W" r: T7 E9 A
<statement sequence3>; h1 C' S3 f) `7 U' X0 ]" @
end;( Y- ~6 k0 b1 U3 q. a6 z [+ w- {
如果分支比较多，用：, p* S* u0 @9 R# ]# `+ p
inspect <expression>
0 y* ]0 P, Z2 U0 b- Q+ Z8 L- [ when <constant_list> then; B! ~0 ^: ~$ g& }
<statement sequence1>;
: Q. T8 r# ^2 Y' r7 } when <constant_list> then+ a6 p$ b, f) S6 J
<statement sequence2>;
) E. N0 r' }& s& C! \) Z& f9 ~1 X ...
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<statement sequence3>;
& C+ s$ {3 ^2 y( Z; T6 send;
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/ c) c( ^+ ^2 m6 H8 y6 i2循环语句
* N( b' X( n# B* q (1) from <statement sequence1>
1 j9 u6 C# w0 | \: s8 s7 h until <condition> loop H- T% M2 _# e4 e0 _
<statement sequence2>;8 a0 y! D+ [& l5 W+ r( `
end;. X6 i I0 W- Y1 u* ^. U L
(2) while <condition> loop
$ u e$ Q6 S; d) o, K <statement sequence1>;. w0 r/ @& A1 i* x& D% {# r
end;# H8 A3 j& t/ o; r) y. L* G
(3) repeat
8 J* \, J2 _* W5 }6 u4 N* Y6 Q <statement sequence1>;: }; B8 a c! [* a
until <condition>;
- [9 H P: m2 `7 B: ^4 s- y (4) for <condition> to <condition> loop
4 `- I2 k+ s$ D5 h' H <statement sequence1>;3 t& [6 g( t L9 Z" C* Y* y+ U
next;+ t' K3 f$ A* O. n/ ?: g5 C8 G& i7 Q
3中断语句0 U. {5 |; r" g$ } o+ u
waituntil <condition> prio <integer expression>;0 C/ d! V4 \# X# v& t; h* G
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以上为常用的函数！, Z8 P9 D* z/ @
还有很多，如有需要我把资料发到你邮箱里 & O: S/ J7 N" D/ O2 `
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