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发表于 2012-11-13 08:48:12
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1判断语句; ?& b5 u; ]& z' b) e' [$ H
if <condition> then
: m. }; }6 ~1 M) }4 T <statement sequence1>;% m7 b6 S% S2 e% |- w `+ X8 ]
elseif <condition> then
: w/ O' b7 s, \! V9 W <statement sequence2>; f# H( Z. K. p) a
else - i/ o% ]5 S4 V. H8 o7 }
<statement sequence3>;/ H4 _1 I( n0 w5 ]
end;
+ T5 u: K! ]& ?: J( E8 o. E如果分支比较多，用：
( I+ J( l$ Y) S _; u6 V: ^ inspect <expression>+ H) X! r6 P: t, u! O
when <constant_list> then
7 G; A9 h& {1 N1 \+ c <statement sequence1>;& Z5 A7 D" F* q) b0 s
when <constant_list> then, ^; @. q. e% ~7 ]
<statement sequence2>;
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else5 ^2 `2 c- ?* h- x
<statement sequence3>;
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2循环语句
& A9 W/ S. Z( e! f" ]9 S' c# V, P, ] (1) from <statement sequence1>
% c5 Y. v' z9 x2 e until <condition> loop8 S% f( G$ g: ^5 t. X% t. m
<statement sequence2>;9 Z' W8 ^: P! a5 s3 f2 A6 p
end;2 c8 e6 K4 b1 p1 K! |
(2) while <condition> loop: O' t% N$ ^/ v* r5 f# `
<statement sequence1>;6 D+ \- X$ |/ A. g
end;
% {7 m+ f" ~$ e4 E; G$ Y (3) repeat $ A( t. x- `; p. I& H* B' X& V/ r7 q
<statement sequence1>; Y0 Z. W& b: T$ Y( K3 [
until <condition>;. M: z) t/ { j+ i9 j
(4) for <condition> to <condition> loop* C" u+ F$ y4 \$ F
<statement sequence1>;: \7 d7 ~/ v' y Y' R
next;
' C1 M5 ` _9 {1 E1 M% h& d3中断语句
8 L* B; t4 @/ W) u waituntil <condition> prio <integer expression>;
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以上为常用的函数！
0 n( d( i. h- u; \& `! G还有很多，如有需要我把资料发到你邮箱里 ; ^& ~% ?4 M! D- K+ B ^
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