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发表于 2012-11-13 08:48:12
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1判断语句/ _, |9 J7 d) s) Z c) T& q; x3 F
if <condition> then& H5 Y' s4 O7 G$ ~6 l
<statement sequence1>;$ P4 ^' S& ~- I4 C2 v/ m8 m
elseif <condition> then, l! _- S! K0 r; I3 n
<statement sequence2>;6 v7 Q8 _. V9 m w* \: I
else
& m' r- T N$ {: l S4 I5 A <statement sequence3>;& i& r/ c& s e% H; O
end;$ E9 M2 c1 {1 p2 [% Y3 @3 L. u7 `
如果分支比较多，用：9 z" j3 }; m# F) C0 `+ ?& d: g( V ?
inspect <expression>: `* B! t' p; D+ G$ T8 c
when <constant_list> then, K, u" O8 ?4 }" h/ B! L F
<statement sequence1>;6 f5 V* Z1 c! z% a }" a8 v1 r" E
when <constant_list> then# w' `* Q1 r# @: W
<statement sequence2>;$ I2 I6 T6 h' u. C
...8 K4 W$ a; {4 d$ [2 `
else" i' [2 W a' r; k
<statement sequence3>;
# r" \" X/ O* E" p) ?) `end;( |, j8 u- M' }9 p
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2循环语句. j7 r. A! X& p0 F, |+ R9 ~4 |$ q
(1) from <statement sequence1>
4 T- W, K. E+ |$ {' q. Y! F/ R/ T4 ^ until <condition> loop) P, ^! A( O- a" @
<statement sequence2>;. f- m, n7 `. P4 @) `
end;
% |) ?. N: a9 |5 q (2) while <condition> loop
' V1 _ B3 d4 o5 Z3 ]( ? <statement sequence1>;
( M0 B% n, C" Q end;4 {5 \( ]" V) e# Q. N
(3) repeat 7 ^5 ]( U8 {0 B( K
<statement sequence1>;
3 }# S/ r) Q5 ^8 \6 O- _ o3 d until <condition>;
7 ^5 U+ D2 f1 N8 X6 Z6 `5 k (4) for <condition> to <condition> loop
# V% B+ w( h2 ~- I% T/ v" e! Z t8 _8 f <statement sequence1>;1 i8 W% a7 E3 ]( n, k ^$ n
next;
4 v2 j- h. T: O ] u$ s, l: C' p3中断语句
) [8 t6 I* x0 r' h! p waituntil <condition> prio <integer expression>;
p$ f1 F2 B3 `& o3 P) M$ A6 }) }" `* @ x/ S7 ^* Y
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以上为常用的函数！
3 D. n) t1 v, r; f9 T2 q还有很多，如有需要我把资料发到你邮箱里
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