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发表于 2012-11-13 08:48:12
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1判断语句. V! @% p& ~! i
if <condition> then
; V4 z( ?! h: ^* F& v8 O) c1 r <statement sequence1>;
+ i9 e) i# T- u. P3 [ elseif <condition> then& L9 P. L& A6 c& I) k; r' j% B
<statement sequence2>;
+ T$ g( ?8 W) q3 ? else
% o) e6 r4 s0 w+ k5 ~; \ <statement sequence3>;2 h6 [7 v3 U. X5 j# k: L0 a* \
end;
% H( `) h" V p9 K如果分支比较多，用：3 y$ F; G0 _2 d) c. q
inspect <expression>
) r# Q# W' w* V# L/ C# `4 u when <constant_list> then
8 X" H" m8 V& X. s <statement sequence1>;$ J- d0 t0 i+ T7 ~% u1 h( g' h
when <constant_list> then
- L$ r# m+ t: B6 g/ q, g <statement sequence2>;% `( @; t; p+ V" L8 d5 o. ?
...
; l9 U% M* {$ `* z: n* j' U else
2 {5 f8 }2 q* z <statement sequence3>;
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6 V0 u& E% G8 t% `9 ]3 {2循环语句
# i) q3 v& V: ]; z D6 V0 | (1) from <statement sequence1>
$ l# k+ n1 Z7 w! S* T6 j9 v% q+ }/ S until <condition> loop
9 j( u% S$ ~7 G$ @* ^0 Y( B$ T <statement sequence2>;. H W9 O1 p- c T; C9 Q
end;
- I' k/ n$ j* r7 A9 X; {) Y1 X3 f (2) while <condition> loop
" Q7 [& w9 c! g! n# k <statement sequence1>;
$ Q8 j* l, x: h* o/ [1 h! _; R end;( ?( t: e' B( R, Z/ t
(3) repeat + l: ]% u, u( d+ b' S1 A1 W/ z, }3 _- E
<statement sequence1>;, x2 x6 |) }. @9 y
until <condition>;
. Q6 b6 S, t) |! W+ M% { (4) for <condition> to <condition> loop
/ s3 Z; n) Z4 e* U$ R6 V <statement sequence1>;
4 V/ N4 C$ i' N, p# y% U! I0 n next;+ j3 w. g* {# F% [; a
3中断语句/ }6 \2 [$ F4 h* w3 q0 S
waituntil <condition> prio <integer expression>;
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% {6 z* u! m4 v4 C( r. \& m6 }% [2 Z
以上为常用的函数！' M8 @+ u1 G& F. G
还有很多，如有需要我把资料发到你邮箱里 # z9 x- s9 R- c/ x1 W' s* ~
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