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发表于 2012-11-13 08:48:12
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1判断语句
) H r7 d, G+ U- [% g$ @$ `8 x if <condition> then
$ H2 M" j' m3 q5 ^: s% d% r4 j <statement sequence1>;
. |9 s% J4 h9 J/ A elseif <condition> then2 h' P" L% g2 z W1 ~
<statement sequence2>;
% [ e8 V& y" B& ^% `, g else
6 p' A( ^% p) N/ i) I6 D( Z9 I4 @ <statement sequence3>;
8 X c1 c, C" U7 R. R. j end;+ T! J2 Y1 N( c/ }" x0 b
如果分支比较多，用：' A! o3 l% e1 u L
inspect <expression>
1 a/ y2 C0 K* V+ u when <constant_list> then
+ S V+ Q$ p9 Z! N <statement sequence1>;
9 v) E% h+ e' O: F' y5 J when <constant_list> then
0 l4 f. i9 p7 |9 ~ <statement sequence2>;
H' ~8 \: K# D) V6 Y; x ...
' K" X: Z1 D8 N" _9 A else
9 J# k* ?) H$ e <statement sequence3>;; g( O0 g3 o+ i/ u* n& @) ^& S
end;7 O+ r0 M$ _- y# E i, n6 Y
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2循环语句 P3 J+ H, f( X4 k9 e9 [
(1) from <statement sequence1>
' K( n: ] r3 g5 J, E6 t until <condition> loop
6 }8 T T# S9 Z J9 E$ f- a <statement sequence2>;' W) U) C) c0 Y
end;
! ~/ g0 B/ u# W (2) while <condition> loop" r; g7 u1 A& b2 j
<statement sequence1>;
- O0 e; s7 I- e+ p/ k" \& b end;
1 k+ x# a! g4 t/ X; p$ k (3) repeat
, _' t1 r' J: `4 e8 K6 G/ _$ j <statement sequence1>;
6 c, ^$ y( b1 N/ Z$ `, ~6 W until <condition>; I) d3 C7 f$ q+ \% ~
(4) for <condition> to <condition> loop
2 n9 D) V- {6 n6 [, E1 {) i3 Z, s% x <statement sequence1>;
+ ]# O( W! f) k! [0 @9 A next;
. b# ? f7 R, m3 f2 D3中断语句
, x$ K4 W8 ]4 l# e q b2 j7 y waituntil <condition> prio <integer expression>;
5 s+ Y! m; N; V# Q8 ^4 {& F, G2 x ?/ G4 ]6 ] K% }! s# u" H( j$ a
. {: P3 U; z/ B3 O2 q$ D2 C# W3 n以上为常用的函数！' @" U2 ^3 o" o) a) O
还有很多，如有需要我把资料发到你邮箱里 ; {, P2 r! D0 t8 |# ?' T- r& R3 A
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