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发表于 2012-11-13 08:48:12
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1判断语句, B) e- m- q/ x5 N. {' i8 p
if <condition> then
; s3 M1 n/ O$ } <statement sequence1>;2 c0 V/ z% f9 n% E. E! q1 J' _
elseif <condition> then
$ C. I2 d: O" a, s4 j <statement sequence2>;7 ^) _3 k9 X/ H2 p; C
else
+ Q6 b, W: ]1 c; Q! C <statement sequence3>;( N& P* \* A) W8 d
end;
/ Z7 O! ^; d4 C3 ~" N如果分支比较多，用：
' w/ ?5 a# R: `/ [9 X# j# j& r: f inspect <expression>
3 ?5 r; \( G- m$ C8 f$ ?$ y when <constant_list> then l* X3 i' i- k- @/ M
<statement sequence1>;( R# `7 e/ J- d4 T, y+ X
when <constant_list> then
8 O2 x, d* d/ u4 h <statement sequence2>;
5 k% L# `2 N; s. _6 j. @ ...
0 t; F/ Q9 @4 k) z) c/ C+ _7 ^ else
$ ?; M$ R- U2 G <statement sequence3>;& z& q, ~" n/ [4 `; V$ I+ o& r" n. v' E
end; V& t5 b: s; c
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2循环语句
( y9 ?" Y3 @1 h) _: o) B0 ^ (1) from <statement sequence1>
% ~, r9 c0 K v* E until <condition> loop. q& F& c ? u- w8 J1 ~5 t
<statement sequence2>; I2 x* W, ?, J4 l' W' o! s8 e7 S
end;
: s; k" j) B. q (2) while <condition> loop
6 F$ J! c$ A+ @$ E' p/ R6 d& q <statement sequence1>;+ z+ {6 ^- Q8 }6 i9 |
end;
. m \' e t& G (3) repeat
/ O( h/ d, s3 {0 z8 s* l <statement sequence1>; H5 a$ d, G+ N4 i& k) j
until <condition>;9 W" f3 Z3 k" A
(4) for <condition> to <condition> loop5 B& I% n" m( S; y. ^
<statement sequence1>;/ ?5 G2 ^8 a; u8 r2 D3 L9 {7 r
next;
8 Q7 z. ^ x( x3中断语句
8 ]' ]9 P5 }5 z" b1 Q g waituntil <condition> prio <integer expression>;+ f' q9 b: m8 O0 ^+ G* I/ n' M) O1 k
9 i: d1 Z, p" ~/ I' h4 s- u Z
: n$ z2 A4 H \4 j' ]2 l# {% N以上为常用的函数！
4 v0 h& a! T( w$ n还有很多，如有需要我把资料发到你邮箱里 ' i1 T- a- w* d1 O
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