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发表于 2012-11-13 08:48:12
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1判断语句
& I& u( D8 Z" ` if <condition> then! R4 ?) C8 @, [0 M0 K% K2 ^2 s
<statement sequence1>;! V7 V: p; d. [3 v, n/ }1 Q
elseif <condition> then
: W* L7 w* ^4 {# l% H <statement sequence2>;$ v, P- G1 A$ g
else 4 ~! h) }( W. J3 }6 [ `2 e
<statement sequence3>;
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如果分支比较多，用：
2 m/ d* n% G$ w! ~ inspect <expression>, x4 m8 ~7 x! J2 i5 K4 w1 S
when <constant_list> then
: t- g0 X% l9 C( O% K" e <statement sequence1>;2 \: O+ I# v- m5 e) W
when <constant_list> then( A, K7 I4 U; Y% \( D
<statement sequence2>;
3 ~/ O3 N- E& V. H ...
# Z- r0 R4 w* q9 u. K else
$ X- x' W+ P1 w$ L. e <statement sequence3>;
# Z+ R5 Q6 c8 F! zend;& A* T+ }) l. k' v+ t8 T$ g+ Z
8 f( }; }$ x r* f2 C9 u; O- i2循环语句
* Z# Y: d1 x1 } Z1 q' n6 X$ s (1) from <statement sequence1>
- ]5 c+ u$ J, T until <condition> loop
, ]8 G8 W' m) ]" Z0 W; D# X; J) ?! {; z <statement sequence2>;
" @; D; G3 z V+ T5 m' }" s end;
7 \( B: k+ W, W s& e( `4 z (2) while <condition> loop
% n& @- b+ l) D0 x <statement sequence1>;
4 v3 M2 Y, M+ L% U6 G end;2 }& {' w! N. Q; s
(3) repeat , K* _& X! _+ Z [+ D7 \) z' L. {1 G
<statement sequence1>;0 ~* {8 W/ J2 D' e$ _0 g+ l) r' \
until <condition>;
' z# D6 m& o! v. O2 O% P (4) for <condition> to <condition> loop) S0 q2 F5 A2 u: F0 B* h) Q! \
<statement sequence1>;
7 Z _, s: q; c1 k- W# `8 T next;" \# U: j; i" ^9 t% \1 t6 \5 k- X
3中断语句) O0 i3 B8 Z5 m& j7 w; X) C; Z6 [
waituntil <condition> prio <integer expression>;% B; p1 D6 V; c" }2 Q7 R J
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以上为常用的函数！: B1 E" N( U8 g# F8 B$ q4 j: L; [8 ^
还有很多，如有需要我把资料发到你邮箱里
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