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发表于 2012-11-13 08:48:12
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1判断语句2 m- d) }7 T7 @1 V7 O1 d
if <condition> then- [8 ?% A+ }' i5 G- W m$ M
<statement sequence1>;
" L. u t( J. e6 e k elseif <condition> then
1 f: x3 w `- n ]3 H3 r <statement sequence2>;
. n9 n4 l% b# ^2 q else $ I* Q8 b* }! O3 k
<statement sequence3>;
8 Y' B1 t3 O2 g1 u/ r- E end;
6 F! P8 T# D0 l8 r如果分支比较多，用：
3 j- p- C1 F& T! Y$ Q' s2 c inspect <expression># W# [1 ^5 [, m1 v2 B4 ^3 a; g
when <constant_list> then! k7 J& |8 O: a( a h
<statement sequence1>;% \ u3 m P b2 l4 d4 [# V) a
when <constant_list> then x* `& w# l+ R/ U6 O/ _" Z! I
<statement sequence2>;
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else. n* \& W* Y) h3 e. ^" g
<statement sequence3>;
- s |9 z0 w; N! q# y, Oend;
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2 c; t$ f. g) `* l$ m2循环语句
6 O' {. O5 A! \! i* I (1) from <statement sequence1>$ U5 B$ F1 A! S, I: u
until <condition> loop
2 c: `" M* Z. T <statement sequence2>;' L9 W0 p. n) n' p9 A3 E
end;3 P3 X* K, {7 d1 `, H
(2) while <condition> loop, g! W5 V L4 L# _5 ?" D
<statement sequence1>;- ^/ e7 k& Y) M: f3 F# ]% l
end;# X6 I5 Q- d+ @7 y& T
(3) repeat
3 W3 P) c* i1 p# k <statement sequence1>;- H; V: H( P' y
until <condition>;
" G/ M, ^1 W# i# X (4) for <condition> to <condition> loop
+ j) C3 W, W# ~& k) @5 Z0 p <statement sequence1>;8 z0 [9 m: s, n5 p
next;
8 J4 D" }8 ^; [' }, H3中断语句
1 t! Q# j* z. j4 F- |% w# \ waituntil <condition> prio <integer expression>;
6 J% {* A* g. U" E! d+ _1 m* ?& N1 m( ]2 W1 S6 }, {1 e8 J
" r) h$ E8 n/ ^9 u7 j) a' I( \以上为常用的函数！" [/ } B7 ~; w' [+ p* s
还有很多，如有需要我把资料发到你邮箱里
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