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发表于 2012-11-13 08:48:12
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1判断语句
) G+ k" n1 ~% b O/ n if <condition> then- v9 ]# z3 F: k) C# p& B; \
<statement sequence1>;
+ |* _" Q, ~6 r: m8 `' x1 u) h elseif <condition> then
# O* p+ M/ U/ K7 z <statement sequence2>;
1 j- f: r, Q, E: P! b3 @ else
, Y1 c; x5 S! ]! d5 p$ R* i& Q <statement sequence3>;
8 W- ?$ ?4 P+ I9 u+ Q, f end;
( r% m. E1 Y5 u( _. P3 f( u如果分支比较多,用:
6 A8 q, b2 ]/ W$ } inspect <expression>
* m/ E0 @7 N6 D when <constant_list> then
$ }, s" x! b5 F0 l% T/ E <statement sequence1>;1 h3 `, d# p4 J5 l( E
when <constant_list> then
4 v+ c% r5 n6 A/ f <statement sequence2>;! ?8 ?9 K3 k3 F: k+ c0 U8 F+ p
...
5 g0 h0 d# n+ X8 b# [1 k1 ~, F else
7 X3 o) a2 m0 n' g <statement sequence3>;
& ~$ V: ?# F3 C/ V |, D0 Tend;
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9 y6 v0 g; _( K2循环语句 E g1 S0 v; F: h8 G6 a2 r
(1) from <statement sequence1>; Q4 |) ~3 }! p& r3 |* w ^4 }
until <condition> loop1 J+ P: U& H( |4 M
<statement sequence2>;
0 U5 [. B0 x1 M- O ~- S0 u" O! Q end;1 F& G; Z& j; G. P. A4 K% P- T# ]% V
(2) while <condition> loop1 u) C5 o$ B% s! h) ?
<statement sequence1>;7 i. N! p+ D6 D+ Q/ q
end;
* m8 }4 L) p- N) N (3) repeat ) {" d: R2 B2 A' U3 y( U, d! P
<statement sequence1>;5 M3 P. K/ f5 l7 h$ i# U
until <condition>;4 ?. a4 j& Y' q1 Z$ W* y! J. v& u0 w9 [
(4) for <condition> to <condition> loop9 l, M; N! T1 }1 u5 l* g( F
<statement sequence1>;
2 K/ `# l* P/ m. N next;
; r1 U$ M$ o( H. S3中断语句' {& z; m+ q9 d; V* A. d
waituntil <condition> prio <integer expression>;3 `7 g& O5 }* z3 R% c
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; Q/ w7 U! e I% e3 W& e以上为常用的函数!
! q9 g' n g+ S% R( A还有很多,如有需要我把资料发到你邮箱里
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