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发表于 2012-11-13 08:48:12
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1判断语句
: D# o. V$ d: J# x! V( s6 ~' z if <condition> then
3 f$ Y2 h( c' D/ L' T4 e7 S: g <statement sequence1>;
# H7 p" G" V6 H4 L elseif <condition> then; m3 ]+ P; B$ \2 \7 y3 p) c
<statement sequence2>;3 g Y# |) `5 y" s
else
) n, U. x. a3 I% v2 L; F0 e <statement sequence3>;
, N" o/ o! D- _) O end;2 e; {/ g7 A, o' U _
如果分支比较多，用：( D. u! n/ ~0 A+ I
inspect <expression>5 O3 R- `: H! }/ Q5 y5 \
when <constant_list> then+ I" F7 o, p; G# y+ t
<statement sequence1>;6 V. N( W/ a% L d3 u" K) k
when <constant_list> then
5 }/ |% n( |" K <statement sequence2>;
: [, x/ y0 ?( f& A V0 o1 ^. z2 N ...
r# S; i1 q+ i7 I1 ?' A else9 t8 z& A% V4 r' `- d
<statement sequence3>;+ w! o# X" F) a
end;- Z- P- d/ N+ e8 [& X
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2循环语句
5 \ H" z S& c4 f; z% F (1) from <statement sequence1>
$ b9 e, C1 P9 R$ F1 v until <condition> loop
) d8 J3 c( Y% |$ B <statement sequence2>;
+ f" x( J4 b+ x5 d! | end;3 J! \. }$ a* ^ ?
(2) while <condition> loop
2 c4 Y$ S; m9 d# N6 e' K <statement sequence1>;
' Z& v v. y# f4 M% K& b( X end;) H; g; d* d/ V8 Y! B5 a
(3) repeat * C6 X& R7 {) a
<statement sequence1>;) n8 n- \9 o: n, f% l( U+ @. h1 P! |
until <condition>;4 D2 k+ s' W; B+ U; |% u
(4) for <condition> to <condition> loop: p8 m0 Q+ T8 A3 T6 x
<statement sequence1>;0 T5 f" t+ T% U3 w' p
next;
# X6 m4 w% {- v- R9 h6 H' b3中断语句" F, u1 w9 l7 e( A, ^ o7 q
waituntil <condition> prio <integer expression>;- r; B6 o [) v% ^- I' S7 B8 l
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以上为常用的函数！0 P5 n1 Y5 k$ }' G" g& @2 I
还有很多，如有需要我把资料发到你邮箱里 F+ m. |9 @& n x
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