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发表于 2012-11-13 08:48:12
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1判断语句" V: C! m- M5 d
if <condition> then
0 e: I" P6 ]' Z& O <statement sequence1>; |5 q; K# W9 P9 J: {
elseif <condition> then
7 p4 W9 L) ~) K+ ~ S3 v <statement sequence2>;9 D `) R* \9 b, p6 |& J5 k9 [* B
else
# y) v. W. K+ j$ o" w0 v! B, P <statement sequence3>;2 f0 R4 e- q1 @ q& h1 U: l
end;
4 X# @$ M) N1 A+ L, E9 e1 W( V如果分支比较多，用：
) R( ]6 H; B- E" q, u' r inspect <expression>( X+ K6 o6 ]- s) p" G. p
when <constant_list> then( V* r$ Y! K! F# y
<statement sequence1>;( N& o$ f; I5 M( P- L4 O( k; j
when <constant_list> then
3 e$ X! z" M# n& @ <statement sequence2>;* r, ~/ c$ T$ o/ k5 m0 S2 d: h9 v
...
$ f. G' X& ~& L! Y9 V else! @* w# a8 z6 {2 A
<statement sequence3>;0 T( l! O+ V! N s/ g
end;% J5 w: H9 v0 ~1 z0 C" `$ r; K
* `4 T, {1 [* X. j2循环语句
3 L& _/ J& U- N0 j (1) from <statement sequence1>
5 Z$ s0 Z/ H5 z* k$ E until <condition> loop
0 s/ q9 a$ t) }9 Q <statement sequence2>;
t8 f8 k' }# M2 o( d" k. D2 C end;$ Q: k2 Q' Y& s: O# s
(2) while <condition> loop
9 s! x! ?) z( {: Z <statement sequence1>;
5 g5 }. X4 Q* t, V end;
- N' p) M, t# \" C. U% x (3) repeat
L- Y/ Q+ C7 M3 d <statement sequence1>;7 D4 t8 y( f! s- }$ Q, f) N
until <condition>;2 I4 M- I8 \3 O2 u/ O
(4) for <condition> to <condition> loop
: v- x4 K. N4 N8 z4 ]6 z( _ <statement sequence1>;
. p. H) D% T7 D; z) @0 A8 F+ ? next;* u, j! l& x* ?5 K
3中断语句
" O1 W& b9 W8 |! E% x; Z* U waituntil <condition> prio <integer expression>;! U9 P( O6 e; f4 Y: |/ A
8 [2 ~' Y) A. Y/ y
! x& k; X7 r5 X( T以上为常用的函数！& q+ d: Q# W9 ]0 H7 ^& H
还有很多，如有需要我把资料发到你邮箱里 ; L @: W, d- ^3 Q" T
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