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发表于 2012-11-13 08:48:12
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1判断语句0 |5 {, }. e, D# j
if <condition> then8 M( J3 t5 R. E
<statement sequence1>;
9 o% |' P( y+ x$ h% s( v elseif <condition> then
+ a: q7 S+ `2 H <statement sequence2>;
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<statement sequence3>;. f" m9 A% Q0 l' w- y
end;
# E2 k+ C/ s: ?% `8 F1 _ a p+ E7 T I1 `如果分支比较多，用：
: J+ c; _8 C: \/ K+ X inspect <expression>
0 ~ I9 k D* K( l when <constant_list> then5 Y; }$ [' ]; ?5 C
<statement sequence1>;* _) Q: ~( ]9 I2 \* C4 Y5 O
when <constant_list> then+ e& Y9 r3 [3 `7 G8 F; D6 E9 e
<statement sequence2>;
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else- \& a4 `" [5 ]. L W
<statement sequence3>;
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2循环语句( V" ~2 T+ l8 ~4 y, y2 F" n$ I/ H
(1) from <statement sequence1>- _+ u: I' u, {
until <condition> loop
; o& y1 J$ Y6 n) E! M7 b9 e- y" ^ <statement sequence2>;( h+ S# L6 v2 Z* e6 s/ o& B/ h6 W
end;
# Y, r6 m5 c+ h- E8 U; M9 P: j' v& I (2) while <condition> loop
0 R4 G& u9 a! K4 q3 N7 M <statement sequence1>;: B3 J( v4 u+ ]5 D5 [5 ^
end;
) m* z& ?- `( s1 q, I/ K' l* O (3) repeat : y+ S, y% r! x# J9 T% u Y1 t
<statement sequence1>;1 ~# i; p o1 i5 O1 S
until <condition>;
& j# ~0 J# _. V5 Z4 N( o3 k (4) for <condition> to <condition> loop8 `, I( m( g! i4 u; a' N" f
<statement sequence1>;
; q5 e# p/ e* p" J8 ^: H next;
/ v I- q9 o$ \3 I7 g. {' V1 G2 a3中断语句
6 b/ m+ L. \2 C waituntil <condition> prio <integer expression>;
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) K, g( ?, }, T/ v7 d- e5 ?4 W+ r以上为常用的函数！: {! r5 d' `% x# n
还有很多，如有需要我把资料发到你邮箱里 \ @4 V K: Y
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