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发表于 2012-11-13 08:48:12
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1判断语句! d; z' i: i3 u; L% h2 H
if <condition> then
0 B' Q% ?& P( `8 _ <statement sequence1>;
. Q9 d* ]. [! a( o) r+ j elseif <condition> then* k! u& ]; M, ]1 f2 n0 {8 [% I
<statement sequence2>;
; K$ P+ b& r7 v5 f" [ else
2 F: @' J* g( |+ E, X <statement sequence3>;
_7 A/ p% L, O6 X end;! x- A6 ?/ b( D
如果分支比较多，用：
1 x* w/ z ]' s/ x2 F/ l inspect <expression>5 J& h: e. ^, s$ I8 p
when <constant_list> then
2 }! \1 I0 ~5 h1 Z <statement sequence1>;
2 Z+ \7 d2 n8 Q* x when <constant_list> then
) I7 [7 w: {9 Z [ <statement sequence2>;
& k" H/ K1 |0 g4 q. l3 T+ t ...
& m! W% A" p Q$ `8 x else, A% w3 _1 y1 c% h" r) O" R
<statement sequence3>;
- Q0 R2 [' C2 _end;, U! E2 W. ?* s. k! ^" F# F
7 b1 m8 @5 D7 f; f8 P; M- C' d- s& A2循环语句
! n0 u% z" `! A; @- W* F (1) from <statement sequence1>
/ ?& u8 H- s0 b: A! v7 { until <condition> loop
/ n" r3 L) h$ w+ X" q5 T- Z/ z <statement sequence2>;
, `6 J3 t7 X3 D2 G- i4 Y6 ^# K) a4 t8 K end;
% Y8 b/ c$ l. j- G1 G! w (2) while <condition> loop* z+ p3 ~$ ~( o0 \
<statement sequence1>;6 y \3 |" t- ?
end;6 [: |* Q4 C3 `9 i) m" Q z8 `. D
(3) repeat 9 m7 r( j/ l, O) E% R1 D! F
<statement sequence1>;
* b3 b& x! F/ i, L until <condition>;& I U0 B! R! r' ` t& v, n
(4) for <condition> to <condition> loop
+ Z9 D+ ?2 S3 _/ ?. m5 D3 V <statement sequence1>;4 V/ r3 y, f) u2 p0 l
next;
4 M9 ]% y }1 t2 |- B7 B3中断语句
4 F. Z7 ~8 D) G2 n+ h$ W2 \ waituntil <condition> prio <integer expression>;
5 e( ^. ~' F( j) O5 Z3 U
- h- G- ]' m% L7 X0 f
9 e4 I, b, ~+ |" p以上为常用的函数！
$ D. U A, Z( [) Z, \7 b还有很多，如有需要我把资料发到你邮箱里
% h& h/ i( U( q; r, R1 |7 H
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