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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
9 A# k; _' v2 x, ^1 e if <condition> then/ [+ p9 G9 @- z, s' N2 y4 ]4 z
<statement sequence1>;
( K- A L: R6 h) P, t" H" M2 ~7 A& \+ l elseif <condition> then
6 W4 i- P* c5 q, c5 J <statement sequence2>;
$ B4 }5 v7 T8 x5 P9 \) G$ _) B else
: `: Q) c" q5 o* j! k9 a+ f! ?* ]3 Y <statement sequence3>;
) [9 l/ C6 O( T! [' e3 l& I end;
! D1 A1 _) ]( t) I y如果分支比较多，用：3 S5 v" O& W2 J! U$ `
inspect <expression>
+ h+ ]! I) s: @ when <constant_list> then
" V0 ?( e: k2 O3 w q I <statement sequence1>;
$ N/ D0 p+ X, o; W- n4 w when <constant_list> then9 H9 S- m% j: d! k# ^# ~ W
<statement sequence2>;1 [" N- {; z& E( I1 I0 k: y
...
4 D8 K6 y+ d y, e1 v else
* s6 Q( W( b: w9 L$ m2 ?/ f) L <statement sequence3>; _) r0 X: {. j/ U7 I2 y
end;) n& H% ?8 x- B' }5 ~$ X( U
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2循环语句% S. v# r# ?8 W
(1) from <statement sequence1>* C% r; |3 u- o* F. N6 C a% h
until <condition> loop, M: S9 _8 f- C9 F+ s- U+ H
<statement sequence2>;
, A. `! x: e+ T0 @9 a# s" S3 ] end;1 D; v- Q% U: g0 \: p8 q0 t3 I
(2) while <condition> loop
6 e+ K- E6 q( A8 f4 a! {( e <statement sequence1>;5 W; W3 F6 q+ _ `! _1 T3 h* ]$ j5 u
end;: N3 n) d1 }1 m" x
(3) repeat
# L$ d5 ~, W% Y3 z# C- Q- h+ E <statement sequence1>;3 ]% s% ?4 R8 J8 Y* Y/ r! e1 p
until <condition>;
1 |( n! V% d) Y2 o! o# ~ (4) for <condition> to <condition> loop; L5 V' U' b. h2 v) a8 _, {/ k/ \" |
<statement sequence1>;- @: [+ t; A( _; |; ~
next;
# @- c9 `5 }! K( Y7 e; n1 \3中断语句
( v1 v+ q2 i& W# A! o5 l; G. b, p waituntil <condition> prio <integer expression>;/ l2 x$ z8 z1 a# w* @2 [
, Q/ e, V/ T3 w7 @1 i3 d" _6 i. b* o" W: e$ G4 L9 ]3 n9 a3 G
以上为常用的函数！
% v) Y' n. c+ Q) S/ _% v Z7 K+ U还有很多，如有需要我把资料发到你邮箱里 . T2 j6 q8 ?8 ]$ u- V
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