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发表于 2012-11-13 08:48:12
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1判断语句
3 _* G- T; g0 r+ i, a if <condition> then' M+ I+ l+ r' ^# a3 m4 W
<statement sequence1>;/ L# f! Q$ z) v$ z3 X: E
elseif <condition> then
N# W" I1 v' u, B. @7 v! N <statement sequence2>;
* S0 b! T6 {- ~; M; D. Q else
' A7 w) Q) o' P$ b* J% B6 N3 I <statement sequence3>;
7 N. {- z! N8 w8 L0 W+ D' Z% Z& m end;- I8 j% k0 v7 Z7 S
如果分支比较多，用：
, m% d/ l5 c$ G inspect <expression>
6 d$ J% ~2 c' U7 N! e when <constant_list> then0 y% N. N% A% W' V1 V
<statement sequence1>;9 G; D3 Y# p: J/ T: q# G8 W
when <constant_list> then, z+ ]1 M6 }+ L3 v: r8 S
<statement sequence2>;7 p% d% Z# l u+ @$ E
...6 V- x+ i4 X/ P
else9 }6 j) v( n6 P% B9 I& z5 c
<statement sequence3>;
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2循环语句3 `3 Z6 v+ p) ?4 n4 t: D
(1) from <statement sequence1>0 G: z0 L. i! ~' X' {" Q8 ?
until <condition> loop8 o! D4 t7 N! Y( j: {6 n; C
<statement sequence2>;8 S. {1 e6 w* m* r. z
end;
7 e! X( c5 E* E9 M0 K' Y2 c8 ] (2) while <condition> loop
4 p6 @3 S$ L) }: ~7 ]9 i2 e <statement sequence1>;
; c9 l$ |$ x% v& M end;
" g5 P3 N0 }5 m* P9 X) g (3) repeat $ U: }8 i+ d- x1 C
<statement sequence1>;
7 I' h- C- u& S+ b0 | until <condition>;" T# o) N; D3 R# Y4 B
(4) for <condition> to <condition> loop
7 F/ O+ X5 R3 }# s0 \& Q <statement sequence1>;8 \/ Q7 D) k& l1 W b
next;: L* n3 X4 e+ K5 u4 h7 q
3中断语句4 S: l. X0 N w; a, N! m9 t
waituntil <condition> prio <integer expression>;+ `5 t7 S( J# A- v4 b ~
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以上为常用的函数！3 d/ N' `* c8 a6 m
还有很多，如有需要我把资料发到你邮箱里
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