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发表于 2012-11-13 08:48:12
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1判断语句
% K3 X4 A) a2 s( o$ Q if <condition> then
* G9 t" ^* }0 @# X( V <statement sequence1>;
5 N: f( f, g# Z- V% v5 N; J }# e elseif <condition> then
4 N# M. B- f7 l# @4 X3 g3 u <statement sequence2>;/ Y# ] |/ E1 P& e F3 N4 ~
else 2 T; t% I2 v. R F
<statement sequence3>;
6 B; z% k2 v/ f! ?. i4 { end;
7 e2 D) |* J, m) R; z8 N, v如果分支比较多，用：/ `5 P$ s" h# k: ^( k- {
inspect <expression> J: ?* W6 S' z8 v
when <constant_list> then6 [) I. t8 h1 Y4 G
<statement sequence1>;
1 Y( U K3 {3 D when <constant_list> then+ b6 z o7 N8 ?. b) P( o2 j m
<statement sequence2>;: P2 r# `# G; o' q* w% n" a# e
...! A" W! ~) z6 b Q
else
! f) I2 L- z# `6 y6 U <statement sequence3>;2 C$ i& A4 A8 O
end;/ Z/ S! C5 Q/ ^; h% U
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2循环语句% L+ J2 q6 S7 `6 T2 p: U, {: M/ U
(1) from <statement sequence1>% |. h8 Z/ U; ^1 V% l1 _
until <condition> loop
' ^9 P8 m# r) b) c <statement sequence2>;& r {) g: a; W
end;& D+ p* P3 ^+ N e5 ]. }% `# y# m
(2) while <condition> loop) Y& |/ M8 O0 l2 O
<statement sequence1>;0 s# Y9 w$ t& e& f v
end;
6 ~& m' u2 j) y! m# F7 i& A! \ (3) repeat
/ p( f0 Y+ Y+ q( _& H* n <statement sequence1>;
9 }5 k- u8 b2 W/ ^4 _ until <condition>;# p8 R1 E9 \, ]& B( N* N
(4) for <condition> to <condition> loop
8 p- l( \/ E* F7 P' H. c2 h9 _; i <statement sequence1>;
$ I2 N( p1 j' C2 w3 C" k/ [5 [* w next;+ }8 `5 j) u' s* V7 c9 h
3中断语句
8 N$ s" i1 ?- E6 h P8 m waituntil <condition> prio <integer expression>;
! F. S$ C) B2 H3 D! @6 o; Y
# J, w5 p- L6 N2 ^
) P% D' q0 Y- w以上为常用的函数！8 g- u L" V& x# a2 C! |+ a# O, K
还有很多，如有需要我把资料发到你邮箱里 & ?' N* W6 \- e7 I5 [- t& ~' J
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