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发表于 2012-11-13 08:48:12
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1判断语句# T2 c5 G4 b0 G" C! r( y$ P' y. M
if <condition> then
% ?/ q% R+ w& T( L+ }, U. }( D <statement sequence1>;
1 `# B$ e! V }4 L1 \. O elseif <condition> then- x& ~1 O1 C% h P+ |2 ~( K
<statement sequence2>;
9 A5 J% ~ N1 i# s" Q else
( c. }8 k# x! J& r8 p <statement sequence3>;& j/ a, c5 t: y; m$ f, d
end;
: ~- n, B" z% q) _. r如果分支比较多，用：
3 F, S3 V* {" i inspect <expression>
' {9 l# \/ l7 Q: z0 P, ]4 \% f0 b when <constant_list> then! y8 Z1 Q6 }- B8 }9 l3 O
<statement sequence1>;
* N9 c$ O: g0 K d w$ W& A/ N when <constant_list> then+ [: e6 p( m4 E) `
<statement sequence2>;) B- ^* M1 z$ O' x& F3 @
...; R$ ?" k! ]2 t
else2 N( ]+ q- Q' z) k2 c# v/ l9 ]
<statement sequence3>;
+ w9 j) K0 l! Oend;
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; i. @0 ?) V' B) B/ m1 j, K2循环语句
5 H& }( P$ |! c. ^9 e% n (1) from <statement sequence1>8 |- @, `+ \0 [' T& q
until <condition> loop) a0 O2 v3 y! p" o+ ^; y
<statement sequence2>;" a( {- ^ J8 ^, W
end; b- v8 z- h! U" V* ~
(2) while <condition> loop" m, |" ~8 x- }0 P1 }. J
<statement sequence1>;
, U) c. B" ~/ P% k& @7 |& \1 p end;
8 v* {; X' i6 \8 W6 C' o* N (3) repeat
6 y8 r. f) u/ l6 W% [+ u2 _ <statement sequence1>;
, w; `( W" e" l+ ]1 g until <condition>;
# D0 ?, V# t J' M (4) for <condition> to <condition> loop
" s% t! k, v. E& K) o <statement sequence1>;
0 h: ~$ `- z- K* p% t7 A, y next;
) o+ \* G& c6 ~- a5 k4 ^: H3中断语句- X. [; e* ?2 k R2 U
waituntil <condition> prio <integer expression>;
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0 r7 y0 b& I0 N' P. x1 J以上为常用的函数！
@: B/ }$ `+ {- N/ X h还有很多，如有需要我把资料发到你邮箱里
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