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发表于 2012-11-13 08:48:12
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1判断语句
& a$ U7 W8 [+ @6 J+ Q1 @ if <condition> then k/ \2 Q; J: d+ a# T$ E& I
<statement sequence1>;; b4 O4 [4 M9 H8 J/ k( |
elseif <condition> then* W6 |. ~ _5 q9 g8 z
<statement sequence2>;
, m9 V* b: m- z* p9 S }+ X+ ?) R else . j0 E) P4 a& z& H r
<statement sequence3>;8 x& N# C0 K8 u
end;
$ W* q, @0 C& X如果分支比较多，用：+ E* z/ e2 E% n0 c7 H
inspect <expression>
. R% U2 L2 |/ E when <constant_list> then
1 O+ {) w' F3 K" L' O3 q <statement sequence1>;
0 g& s3 H, q# Z, j when <constant_list> then$ W/ c S- f$ e
<statement sequence2>;
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else
n$ {# L3 @+ {( L; n5 f <statement sequence3>;
# Z& k7 D' [' z2 |4 f9 |end;
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2循环语句6 C g4 J* Q6 R
(1) from <statement sequence1>$ ~4 ~8 u3 {/ ^8 g2 O o o- W5 @
until <condition> loop
4 `: F8 f1 v$ g0 N <statement sequence2>;
9 [! i0 I- e, @* c end; g9 |- }5 _- _# V
(2) while <condition> loop
, \% c4 K& Y6 e <statement sequence1>;+ i. O4 i T3 Y" @6 r4 y, O
end;
/ M- f4 A3 K% U( d (3) repeat 0 K4 F# b A; d; L; U' I
<statement sequence1>;4 P0 d8 J1 N/ r& T: _' k/ P) Q
until <condition>;
: B% L, ?$ q* L7 A' u8 k) p8 u (4) for <condition> to <condition> loop
2 q' J. i$ p' F4 @ <statement sequence1>;3 O& u" C& a) S
next;
6 U, N1 [5 F' o2 \3中断语句+ P; C' E3 \+ z* H4 m g
waituntil <condition> prio <integer expression>;3 ^' ]# ~0 f D" ?# N9 b* t* T; F
A8 K( a2 d1 e
4 z) h) \* c( ^2 r1 R9 Z以上为常用的函数！
$ |+ u! s8 V" B" [还有很多，如有需要我把资料发到你邮箱里 ' P4 w) G, H: }7 }3 x) _
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