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发表于 2012-11-13 08:48:12
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1判断语句4 X3 I3 M$ s* F- e; c' N
if <condition> then4 @ E+ ~' ~$ o5 v, _2 E( \
<statement sequence1>;
, P1 m) r( u \* D2 ]- @ elseif <condition> then+ {" V9 |8 T% j) H4 n
<statement sequence2>;
J8 r1 U+ i7 e( x else
% ^5 z: Y% R: M _( K0 R9 T <statement sequence3>;
9 k# Z! G) T3 } end;
1 h- _) b8 c& n2 {0 s+ l如果分支比较多，用：
. G6 w, p e% |, y/ s/ K. q inspect <expression>. a0 r/ S5 J5 N1 L
when <constant_list> then
0 |7 h9 D6 c" I <statement sequence1>;
. D" Q9 P0 u$ @3 n+ b2 D0 H- l$ _ when <constant_list> then
) R6 \" s; w0 R' H& [; z( ~; U <statement sequence2>;8 n' Y. @' L# Q2 |
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else! E9 n; [4 V; V/ M
<statement sequence3>;
3 C* X0 Y/ V& Eend;" n" {& q& M; d! ]9 _ I4 Y
1 K2 L, C C4 A. F! s* R9 M2循环语句# @" ~9 C% h3 }0 A4 l
(1) from <statement sequence1>
) Y9 W, E8 \2 u$ @8 N' x* B7 {5 { until <condition> loop) e' L1 |6 O+ ~9 j& e& P
<statement sequence2>;* W# ~$ ?2 F' m, V
end;
$ {) [1 c9 Q: y s3 s; C9 a (2) while <condition> loop7 S( B! L; g% |' {& ~* h7 T
<statement sequence1>;
9 O* d7 _6 N0 D# P end;' e! X; Z+ \1 v! Z. L4 [
(3) repeat * I% x! N; S- V* I/ k0 g
<statement sequence1>;% ^$ @) H$ D, `# J3 B! H5 ~& Q" p
until <condition>;
" ?+ R: w( h' g (4) for <condition> to <condition> loop
% i' z. s$ Q1 M7 m5 w0 g& T <statement sequence1>;
5 k7 p- f- Z( Y5 | next;4 U( Y1 S, d ]9 C
3中断语句
0 W l) ~% h" g( e waituntil <condition> prio <integer expression>;0 G* F# k! |" d6 h
9 F7 a2 a) K" }/ Q
, }* q/ Y9 S. ^ d# Y& H以上为常用的函数！) }* H2 H, u' p T+ |9 A
还有很多，如有需要我把资料发到你邮箱里
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