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发表于 2012-11-13 08:48:12
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1判断语句' I. z, C7 F5 t' ?8 s" {) Y2 T0 H1 X
if <condition> then
. `& e0 x% ?& g+ S' A8 p' N# `, A <statement sequence1>;" G: \5 L7 E) t- d! s' z, k, M" h
elseif <condition> then
4 Y7 o1 P( A, O& i3 r" z% a* r <statement sequence2>;4 l4 J( i( v2 A
else
+ ~+ c( c4 f% Y6 w8 e: M <statement sequence3>;
) F1 ]! A+ n% ~$ Z+ B& i! a7 Y end;
8 U' ]% A& ]9 D) V6 k如果分支比较多，用：
5 q8 i) u8 V% ?" V" P. R# j inspect <expression>- e$ E9 K# y5 C* _' g
when <constant_list> then" n* Z \; \* `6 T v
<statement sequence1>;
) ]) m0 p1 s% @( v5 ~3 Y when <constant_list> then% v, [1 R0 r: @ E+ A( E
<statement sequence2>;" S. X1 F. A& h1 ]
...
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<statement sequence3>;
3 d' C/ u# a/ u! N% l5 @. U2 o$ eend;( M7 x# `: Z( v7 u* x1 ?
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2循环语句
7 s# _9 ?7 c# c l (1) from <statement sequence1>
% [) L: T. w" l until <condition> loop
# s) |) k6 k* L% G <statement sequence2>;
) X" [- [" T% Y; g' K end;- |" d0 `% D# v7 `# A( ^
(2) while <condition> loop
. r5 [7 h j3 C! W2 x& A+ h <statement sequence1>;
! U, }" D i3 v2 O9 \" { end;7 x) Q S l, W
(3) repeat
& _' \ P+ p+ `' _# x1 ~ <statement sequence1>;
9 ? t9 K2 U7 s8 d5 p until <condition>;4 a1 e+ v9 C% D7 e2 H# T6 L
(4) for <condition> to <condition> loop2 U( z5 h& I) R1 \! d! ]5 _$ T
<statement sequence1>;
* e/ B9 O# M, b7 P( m$ b# h- |$ J next;
( j; _, q1 F! }9 E; g) F) z) f& P- v. Y3中断语句
+ d" ~2 y! A- j2 I3 k waituntil <condition> prio <integer expression>;
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以上为常用的函数！
4 g8 M, J3 k, [还有很多，如有需要我把资料发到你邮箱里 % E- ]! O% `$ G9 k' ~
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