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发表于 2012-11-13 08:48:12
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1判断语句
5 Z" l1 ~$ J9 x5 Y/ l* v: ?$ W if <condition> then
/ G8 R- |7 J- n/ e2 e9 Q1 q5 U <statement sequence1>;) F' a6 B6 C- e
elseif <condition> then
3 M+ z1 [, } A% o7 j: | <statement sequence2>;) q3 y1 g+ f+ [$ r) y9 p$ @3 p
else
* ]' z5 ?9 o" w2 e, ^1 k4 U6 T6 T6 H <statement sequence3>;
0 z9 V2 e0 H* }. o0 q end;
. m8 z, _7 d. G, {( Z如果分支比较多，用：4 q# W& t4 x' w6 c8 C/ @" x
inspect <expression>. U) p# q& B! q" l
when <constant_list> then
' G$ g2 [/ a% T5 O& u <statement sequence1>;; ], U9 t i6 l q9 K9 G. ~
when <constant_list> then5 F N2 a1 |, W, { z
<statement sequence2>;+ n' d5 p7 Y& `; O- W- C8 G9 L. l! I
...
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<statement sequence3>;6 c) G2 \% q6 a$ D. S
end;
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2循环语句
# w* d' Q- q4 i! Q s (1) from <statement sequence1>
: Q9 J9 A9 W) K: f6 Z' R4 ? until <condition> loop3 I; o# s$ K9 ]1 N( x4 `
<statement sequence2>;5 G# P, x E8 L! S
end;) T- L% T: M% h8 l" u
(2) while <condition> loop
8 L8 H- _' F5 Q3 s$ \! y; I; Q <statement sequence1>;
% @, m! g. q/ G7 [ end;
6 ?" u4 L. g4 L, I" ?) { (3) repeat : @3 n! L5 V+ \* q. L! V
<statement sequence1>;9 c' f6 I; q! \
until <condition>;# A5 X! M8 E! U! C4 N$ Q
(4) for <condition> to <condition> loop
2 l$ @) a3 o- q! W) |" X) G <statement sequence1>; m9 \9 _" N' w2 T) U2 x, f0 B' V
next;
! W5 g" u1 y! S' _3中断语句
: B7 f9 U( s; Z waituntil <condition> prio <integer expression>;
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以上为常用的函数！/ ~* j/ i$ p9 r6 [
还有很多，如有需要我把资料发到你邮箱里 6 k( }+ ? C2 x6 x8 s: U8 x
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