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发表于 2012-11-13 08:48:12
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1判断语句! f6 e2 i% W( C( P9 j
if <condition> then
1 s! C1 ]) Y; W <statement sequence1>;- e# _ K. B) l. W) A! Z
elseif <condition> then* |" ~8 Q% g% o
<statement sequence2>;
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<statement sequence3>;9 S( l+ a6 H) e" H) `& ?
end;3 a+ ]) Y2 s( t/ T: A
如果分支比较多，用：
+ a8 z9 ~$ e+ Z) Z inspect <expression>3 A7 a3 [, X, p; U
when <constant_list> then
3 i( I2 q& R, [. W: [& S" _, p7 q <statement sequence1>;
S9 @7 W# j Z4 g; u when <constant_list> then
4 l" e! \5 P3 _/ R) s% A( D <statement sequence2>;/ {- U' d8 I' j/ L' D4 Y. Z6 X4 e
...
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<statement sequence3>;
$ Q0 Y# e8 f: z( [end;
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2循环语句5 n6 O9 B! e2 F
(1) from <statement sequence1>9 p) F1 }1 s# y2 p: @: ?1 r
until <condition> loop' N7 t; ?: I! P! y4 y9 H( h8 O
<statement sequence2>;3 C. N: n: _% L3 F. n+ ?; R
end;: W+ q" s& Z" I# t9 w, a% e' T
(2) while <condition> loop
]! l0 R* N% R A3 @% l <statement sequence1>;0 i) W4 d. l0 E0 Y2 b% \6 J
end;: ?8 Y" Z% a8 o3 _. q/ _( c5 ~% l
(3) repeat 5 A8 G3 o/ ~9 ?5 i
<statement sequence1>;
% {8 `$ o! {. {* U until <condition>;
! J* {, ?2 S2 f6 j: t$ { (4) for <condition> to <condition> loop
: J" |( O& |% K9 K$ g1 s; `- Z$ @ <statement sequence1>;
; z( k) o# F5 `) ?5 O9 Q next;7 g" a% N" U0 \/ {6 O0 n" G
3中断语句1 d) F' n% N* w- g- {" ]
waituntil <condition> prio <integer expression>;" K H# o/ E1 b
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以上为常用的函数！
/ E- P, K" k# w5 ^7 C还有很多，如有需要我把资料发到你邮箱里
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