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发表于 2012-11-13 08:48:12
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1判断语句* d, a2 K& c3 H' u) P
if <condition> then$ o& Y0 }+ H; X1 l9 t) K
<statement sequence1>;/ i+ p$ S& ~3 Q* n6 @! J3 H
elseif <condition> then3 u" o9 W4 w$ d+ P/ {
<statement sequence2>;
% J1 M# T+ o: N else
7 p$ S% P j# ?7 W9 y0 U) w/ d <statement sequence3>;
1 N/ e, p& W& U4 s end;
. J! u* O, \( n: H" V* w/ ~如果分支比较多，用：
2 c7 O4 X0 G$ l) V. t( v/ @0 L inspect <expression>" F* K( K1 B6 n
when <constant_list> then
# y$ y# U( W+ M: b- G6 u9 T <statement sequence1>;! \, m& F* Q! ]: r: P) a4 ]) D2 U
when <constant_list> then- u2 p9 Z+ ~" g @
<statement sequence2>;4 \3 v8 ^( U! `! r. [* v
...7 i% v; u) H3 h# L$ Y5 Z" o. o) M
else
: L1 O3 a+ g! e( b <statement sequence3>;# a7 V* ^1 t5 P8 R8 h% X
end;/ g8 \' t1 V& F0 ^, p) |
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2循环语句. b. Y& q3 O! J* {# a k
(1) from <statement sequence1>1 n; A, U" O- @0 u+ E" @
until <condition> loop2 w( f( D5 v* \
<statement sequence2>;
, G- S5 j0 E& A6 _; ?* t, @3 B end;
, T2 T+ W. j# x: b @9 p4 g- ^ (2) while <condition> loop0 m L( W8 O# M8 {! }
<statement sequence1>;0 |# L% S7 {- w1 m. E5 r
end;. _4 F% {& o2 D! x/ D$ r* J% y
(3) repeat
/ h9 o/ U( F: l/ U <statement sequence1>;' h! s; ^7 O& Z, M, I
until <condition>;* q% l1 m3 U: n3 d! H( J& K
(4) for <condition> to <condition> loop- J+ G* U8 b/ n; x% ]
<statement sequence1>;) _ ~2 W. f' h. m1 O
next;
. J) J; D& Y0 d0 a3中断语句, o6 R- F# `! A- N
waituntil <condition> prio <integer expression>;3 t' X) }' Q: ] |5 G( g
. s4 ^) X* p2 _1 \0 `& m
* N l( a0 Q, U以上为常用的函数！* t# e4 t6 x, n" O; a8 F
还有很多，如有需要我把资料发到你邮箱里 . Q( n& h: ?( z
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