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发表于 2012-11-13 08:48:12
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1判断语句, G( I6 V: T) P7 f. Z+ y% Q$ d. ]
if <condition> then2 Q4 x; t( e6 A5 p/ K* {) ^7 I
<statement sequence1>;
: J# c g& b/ c6 U7 y+ e elseif <condition> then
$ h3 |# D' H# X! Z <statement sequence2>;
0 r1 r0 s+ L- }' j& d/ N. m else
% k. Z; m' Y8 x; s' e* m- u. @) m <statement sequence3>;. `( s A" z) }' O; `
end;3 Y+ W3 {7 D, W5 H& U8 v0 g
如果分支比较多，用：
5 j! s0 F0 W u1 e' }, t- W2 \ inspect <expression>
. D9 k/ U* P; d( @& e when <constant_list> then
/ S& F |* W6 T <statement sequence1>;
, a! d5 w0 `! t/ `& o8 R when <constant_list> then
4 h. Y+ V: v d7 @7 P, a <statement sequence2>;
$ v4 L9 C- H F) F* x' h" g ...
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<statement sequence3>;
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2循环语句/ T o- P4 G0 L# B# a% o
(1) from <statement sequence1>
% {8 w! y: r. [( A: }" | until <condition> loop1 i0 b/ q( \7 T. K% N6 W- m% a
<statement sequence2>;
- [" O( c2 h0 _% d# u1 Q" | end;9 s7 k: O) y: j8 p D
(2) while <condition> loop# J4 V7 V, ]+ l- j+ r
<statement sequence1>;0 Y% B# ^; ?% v& C
end;
2 P ]& X& h1 ]* Q1 O (3) repeat
I: m/ C/ N! d% U <statement sequence1>;
" n0 p3 `% r ?, T6 E) h until <condition>;
* y) ~- T2 a! B4 f$ _$ q (4) for <condition> to <condition> loop7 M; S5 T' A* X. n. |
<statement sequence1>;/ U, H. ~; U$ x, R t0 K+ }
next;7 w( f) \8 X% ?
3中断语句 t4 B; h$ X9 w' C* E
waituntil <condition> prio <integer expression>;3 s. p4 o! n: u+ c
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" _! J. k: d5 V( M0 e8 E) [以上为常用的函数！
9 M! N% I+ }; f3 p9 R9 J还有很多，如有需要我把资料发到你邮箱里
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