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发表于 2012-11-13 08:48:12
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1判断语句
$ o0 F! j4 \7 x: n if <condition> then
6 _: r2 |# W5 ^) ? V' V <statement sequence1>;3 i3 P6 c. C& M: j1 i
elseif <condition> then
9 ` }+ E3 E! y+ E7 B, y! s <statement sequence2>;
' A" B( ?" i8 t, K4 v else
" U5 H( M/ h5 Y0 f: @" H <statement sequence3>;, x! ?$ ^! M( k& B ], ]" c0 y
end;% G# ]. e+ q7 v8 {
如果分支比较多，用：
. w5 {3 B& S, N2 a! u inspect <expression>
9 S- c& `: S9 I" ^+ y1 e9 K when <constant_list> then6 e3 x- a- [$ O) J i* C) K2 F* w% u
<statement sequence1>;$ w. ^) i& [7 H9 S4 g
when <constant_list> then/ T+ m/ F2 J' U1 @. o6 T
<statement sequence2>;
9 Z- }& S" W, S9 e ...
" O+ Z# o. I) b" p: n else
) Y1 W7 H# |: D2 v) E" b <statement sequence3>;
/ ]' |9 `/ {9 r' S/ g1 x9 e% xend;
+ c) G0 E7 a* r! `1 `+ R. X8 _, B) M; F
2循环语句
( p4 U; A& Y7 L z% R! ?& | (1) from <statement sequence1>4 [ [6 L- h$ `* {" a
until <condition> loop
{* e. P0 P& p. ^; }& M8 [ <statement sequence2>;2 l, N% @( W1 s: B8 [# }% K# d
end;
8 |0 u& _- U2 G; E- v! x- q (2) while <condition> loop6 v& J' s6 p& I3 r! b4 d; V
<statement sequence1>;
$ R2 z* O4 @7 X, j; y$ w end;
j0 |" Z7 O& A; T (3) repeat
! U f* j( t2 Y, g <statement sequence1>;& n) W. ]6 G( J7 S: v# g
until <condition>;* W/ R1 \# b" V5 {3 d7 u
(4) for <condition> to <condition> loop, ~0 e5 N O8 e. m: _% _: V5 L
<statement sequence1>;
7 Y( e/ v7 N4 q9 {( R next;
; x- M8 r- P! x* S9 [3中断语句
" S/ s! I" _& h' U+ k waituntil <condition> prio <integer expression>;2 _& t1 l8 ^2 l% Z% R
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) B4 ?) Q0 D& i, x以上为常用的函数！, I/ f4 ]) b$ B
还有很多，如有需要我把资料发到你邮箱里 4 [! u2 y i' x4 V. i$ y2 H$ d/ j1 F
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