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发表于 2012-11-13 08:48:12
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1判断语句& S( c' o3 o; ?/ w- M6 @
if <condition> then
4 T7 b9 }6 Q7 I Q" W% {, P1 v <statement sequence1>;$ w0 a5 g8 d% `8 J% v- s* b
elseif <condition> then6 T4 b! ~2 H/ y
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：: {$ ?9 k9 @8 p$ b K
inspect <expression>
$ p2 h; D% w6 O8 {4 J( I! Y# A) s when <constant_list> then
& `' }1 I7 h7 D! Q4 K9 T- c <statement sequence1>;& H" h0 j3 {% @' t5 p; O
when <constant_list> then* r' A( h8 i8 O/ x. i" |
<statement sequence2>;% A3 T$ u F2 A- R- {7 ~' G
...
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7 u: i9 i O1 `5 L1 F5 ~6 R+ } <statement sequence3>;
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2循环语句* J$ e1 i# C. A. m$ G* ^1 e
(1) from <statement sequence1>
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<statement sequence2>;0 z; O5 z8 h# @& o
end;
5 s& _7 G* N( @1 L, s' G (2) while <condition> loop
/ u3 H7 m' h u' x1 t1 l5 H <statement sequence1>;) f& M# ^0 S+ l
end;
( k4 G# L" b, U9 [% t: Q7 Q6 } (3) repeat
5 L! q2 w5 z* d$ n, M! n <statement sequence1>;1 {$ y3 ~+ D8 c t+ t
until <condition>;
0 J1 E, v7 ? ] b- O (4) for <condition> to <condition> loop
- u: b. S* X7 y0 q+ I; k# H( i# f <statement sequence1>;- D. e# A6 c! a1 n
next;
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waituntil <condition> prio <integer expression>;$ E) O- A+ i0 z
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以上为常用的函数！1 r* a% I$ \( k( F) ?' d; C
还有很多，如有需要我把资料发到你邮箱里 1 S: k" ~( Y# \) h1 Z
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