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发表于 2012-11-13 08:48:12
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1判断语句
3 ]' K4 {5 d9 H8 H0 b: o& h1 @ if <condition> then3 A. R6 ]6 X% @9 L! [" R6 L
<statement sequence1>;4 J5 B8 C7 M; u$ a$ R+ l
elseif <condition> then, q1 w! }1 E- h$ x
<statement sequence2>;* G' D' m/ ?) t: p8 {/ [
else
' p: H7 c% U1 J' A <statement sequence3>; C0 E l5 m1 n- {- S( f
end;
9 s O0 Q- @( n) G$ c, ^: u如果分支比较多，用：
. Q3 C% h- y" T8 @! z6 Q8 g inspect <expression>0 b) i+ J2 S* N
when <constant_list> then
) ?# f& ~& ^6 z+ N6 v* { <statement sequence1>;
' K6 s- X/ ?" A v- y$ d when <constant_list> then
! N7 @. H1 k$ \* }' g <statement sequence2>;
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else
" `+ {. \0 [$ a& V. m! P$ l9 l: Y1 A& m0 X <statement sequence3>;
1 n" I& L; a$ S( L Oend;
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2循环语句+ S; [2 \/ M9 y, v( V
(1) from <statement sequence1>- Q& m) B1 O, ?
until <condition> loop
3 [# z0 c7 X' L6 c9 S; M8 \ <statement sequence2>;
8 t# @1 |: {* z end;9 ^* k+ f: N7 D: f3 o1 Z
(2) while <condition> loop! ?2 ]* W- ?7 y1 \& G) L
<statement sequence1>;
" e. K! {' o* X, V! m9 A end;
7 R% O; W" l( G1 F1 F& w5 f# E (3) repeat ! n0 v) {9 r) B) M q5 Q
<statement sequence1>;3 j- W7 n& |6 h4 q) ]
until <condition>;; p' W. ]: W8 ^+ I* _5 J) P
(4) for <condition> to <condition> loop0 i! O) K& Y8 c) ?+ n. v
<statement sequence1>;7 t1 R% r5 x n0 E( {) E/ E5 `
next;$ F4 x# P' x/ s4 U M. i
3中断语句, l+ ?7 t, A. y7 Z6 V4 g: [! X6 j
waituntil <condition> prio <integer expression>;/ M+ K y, ~6 e. D. u" }; p
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7 t7 i# v: w% n3 I以上为常用的函数！+ l2 N! ~3 T# }% {" R0 v
还有很多，如有需要我把资料发到你邮箱里
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