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发表于 2012-11-13 08:48:12
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1判断语句" q* @0 l' U# r( c4 u$ M$ {0 b
if <condition> then1 }9 ~- A" }7 U2 d& n
<statement sequence1>;
i4 s; P% Y$ G3 s- S elseif <condition> then1 g- O- Q" B! ~) W& |
<statement sequence2>;
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<statement sequence3>;
/ W- C8 p8 M1 H& y7 m end;
0 G' P) H( x6 c, @' @. g2 @( q如果分支比较多，用：
3 }# h$ x, y' c D# \ inspect <expression>
: c# G6 U, R. G( Y! R0 s when <constant_list> then
; w# M# D2 T0 e9 x* ^ <statement sequence1>;5 q( T( q. h/ p, W1 |( G
when <constant_list> then
0 d4 Y3 P, j6 K$ p7 _9 t <statement sequence2>;2 E. q, l' S& G, m; g
...
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<statement sequence3>;
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2循环语句
! N! @2 M0 g' O2 d+ ? (1) from <statement sequence1>
: D. [( x" u& G) b8 d; V/ E until <condition> loop
4 ~; x/ m0 x3 C N0 h N H <statement sequence2>;. A( Y8 \' ]$ q' s/ H
end;
: }5 e2 [$ ~% t& e' K m (2) while <condition> loop
+ O7 ?5 G1 ?' l9 I% N <statement sequence1>;. Z6 h9 t( O. D6 q/ G: D ?# Y
end;& s6 K/ I# d. k( k0 C' n
(3) repeat
& H. e/ {7 [, M' ~4 R) j <statement sequence1>;8 s0 S: P. V5 e
until <condition>;
) R4 B! \/ a1 \% | s: r6 n (4) for <condition> to <condition> loop
& L' G6 G# |# s+ Y0 P <statement sequence1>;
1 r6 f4 j4 I: I) i; ~ C next;
6 D D! N- ^6 H- y- A+ n0 Y3中断语句% ]" F& H* n) c6 S0 [) U7 L+ |/ }/ E
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
* {; ^3 i/ C* O2 X) p& \$ v还有很多，如有需要我把资料发到你邮箱里 / z- J, n* \* Y) V2 q
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