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发表于 2012-11-13 08:48:12
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1判断语句% @; C$ R9 c. S% f8 N1 I
if <condition> then
" g. B2 ~" ^, e0 [) H D" N2 v <statement sequence1>;
" U& f5 r4 p% N elseif <condition> then6 o- u& z- x x/ U: l1 a
<statement sequence2>;
# k+ k2 b; ~8 Y3 E else
- q: M) B# a/ z; U/ ` <statement sequence3>;
% Y& a* t/ G( Q2 {6 a end;$ \* V4 n1 e- w" _! t" n
如果分支比较多，用：
3 O( P" B, B0 n) @- G7 a. v8 x inspect <expression>
) Q% D2 I2 R7 [ when <constant_list> then+ ~+ i# `& V7 X- `( O f
<statement sequence1>;* |- y3 d) Y; l6 A
when <constant_list> then( z0 g7 G- g$ r5 j
<statement sequence2>;4 I# E8 p& N( Z- p+ I6 R% I; D
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else
, P: _, R% n9 w- K4 e" o7 ^ <statement sequence3>;
) }9 J, p- j4 W# F6 jend;
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2循环语句# [) b0 t: X3 c. m) v4 L+ ]; x
(1) from <statement sequence1>
* C9 e. v3 {% E6 h until <condition> loop! X: A3 @# N Z. \. n
<statement sequence2>;5 `0 X. c! ^4 b
end;
1 j/ F; \6 K2 u, `8 O: C: D (2) while <condition> loop+ S1 C0 G; a9 P8 O
<statement sequence1>; k! ~" {: G2 O2 p* Y
end;
! {5 ~2 S! p1 @- S (3) repeat ; |+ U8 e9 N! `! h+ O/ [
<statement sequence1>;# m) ?/ w8 U5 n) b: v
until <condition>;
( Z9 ^6 a2 _+ r1 c4 k (4) for <condition> to <condition> loop
, E2 f! a1 s# B* _, \0 `( n3 Z <statement sequence1>;
1 Q' p, P. }- Z; j: M0 W next;$ f- y5 }$ l, u5 S( G
3中断语句
* l% J/ n) c1 K- W waituntil <condition> prio <integer expression>;$ C% @9 A. F6 z
# E z; n: F- r* F3 a2 k0 o
+ y8 P( F5 J( P
以上为常用的函数！
# j0 Y6 J1 f, q% U* t# _* g- Q还有很多，如有需要我把资料发到你邮箱里 0 a( m, `% {; _8 X& y9 N
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