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发表于 2012-11-13 08:48:12
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1判断语句
$ f$ Q% q3 Z$ B' H2 r* N if <condition> then8 z' s$ i, ?2 l% `4 m
<statement sequence1>;
9 w/ f' o4 l. d! u0 g; N elseif <condition> then
8 }* L7 B% }( S1 @/ `# G <statement sequence2>;1 ~' P( e/ O* S7 p q3 X
else 4 i* N6 C2 E: C- d# F; z
<statement sequence3>;9 i) U$ C) E6 ^0 \6 g
end;
5 f0 S5 ^! J3 u* u4 U1 P如果分支比较多，用：
6 b( b, K6 m, W" \: n inspect <expression>. s. D# i# b0 q& F/ }& ]& g' n6 O& p& a
when <constant_list> then1 O1 j* L' t# _7 U3 U6 H1 z* p
<statement sequence1>;
1 E3 e1 g3 @) E$ [ when <constant_list> then4 m/ h7 |3 m$ \- E; ?% D$ \
<statement sequence2>;
{% n: K4 m. F4 y, Q. ~0 Z8 \ ...
2 `: ]- s, w7 `$ C else
m7 ]; ]% I9 `1 s- d <statement sequence3>;
8 h+ \1 f4 n0 r4 P- M) Z# \ ?+ oend;; l, D' [7 a( Q7 y2 z
7 g3 b0 C" C& J1 B4 l2循环语句! J/ O6 |; U' c, p& v% r
(1) from <statement sequence1>
0 _, r, y1 \8 J8 G until <condition> loop& \8 g) \ F& k6 t/ r6 n6 O
<statement sequence2>;
; \5 s8 O' G* z7 G: F, A* B end;
/ D! m9 k& y" c0 |7 }; ]0 c (2) while <condition> loop* j! ]( X2 b% n2 o% A/ q8 v$ R
<statement sequence1>;
9 m7 z% C; Z" | end;
+ O/ c# B) F/ ^$ k; n: R3 V (3) repeat 2 c4 Q# r1 q/ ]
<statement sequence1>;7 c+ Y4 y! ~# ~ [
until <condition>;: |+ L' A4 i& @7 Q2 o
(4) for <condition> to <condition> loop9 f8 g& w/ ]# h! c3 x- D
<statement sequence1>;
: k8 b! y0 L5 ?! Y1 j next;
4 P! E' w L% A- }3 B3中断语句- x2 F8 I( j4 u% n- a8 ^0 U
waituntil <condition> prio <integer expression>;9 {7 B" X, [& ?7 T0 m8 b& z$ S. i
: x$ b9 [# E5 { G( k' j7 `
/ {. }" y! S4 i n i9 `' ?以上为常用的函数！
1 r& s2 W, @, U7 m还有很多，如有需要我把资料发到你邮箱里
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