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发表于 2012-11-13 08:48:12
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1判断语句
3 H S% i1 s7 }! { if <condition> then X2 m$ n: N# c) u
<statement sequence1>;
) ^8 ^# d1 D1 @: N6 a8 S elseif <condition> then3 C% y/ I& x9 `
<statement sequence2>;) S5 l* } N6 v. q Z8 q6 r3 S
else 9 P* x' Q6 ^* n" V4 [8 b2 t6 H
<statement sequence3>;0 y9 D7 c8 L7 N$ b
end;* ?* ~2 p. X- q' q- K: ]
如果分支比较多，用：3 f8 Q, g# Q0 K, g- w) L- ]
inspect <expression>
) M3 C" [% a2 ?4 i+ d' [ when <constant_list> then% T2 L+ c O+ @
<statement sequence1>;
6 N1 B+ W0 N. o when <constant_list> then
0 d ? q! r# ]! k <statement sequence2>;: g. ?5 f- u; _$ T$ i
...5 ~% P$ V; r. [% f7 r
else0 E+ J$ w+ U! q* r/ M1 L1 p! `
<statement sequence3>;, R+ T: u% f3 R5 ?/ h& {& a! [
end;1 I* T) d" I C3 C
9 Z. g# D% C, Y2 h! B6 F5 f) T' i2循环语句2 B3 I- y% B1 ]- d
(1) from <statement sequence1>- V/ l- T y$ Y5 N
until <condition> loop
/ h# L% B: r' j* t2 [4 ~ <statement sequence2>;/ S8 W* p6 g* h% b( m4 D7 c
end;: ]. Z- e3 d& \8 m
(2) while <condition> loop
: \/ B) e5 G% }5 J/ w1 o1 i, h <statement sequence1>;+ B8 [5 `, F0 R0 n! G {
end;
( ]2 @8 R! C' x/ c* J( n+ z8 ]' q2 b1 K (3) repeat 7 l6 Z) }( c8 W) _
<statement sequence1>;, y+ i) `/ @( A! x, w
until <condition>;
1 Q* p2 I$ c9 Q (4) for <condition> to <condition> loop2 b/ I# M; Z) j! {! w
<statement sequence1>;
' I4 z K3 g2 w. t7 Q+ v next;$ G" ?+ z- l$ H/ ^* D1 A# p% o
3中断语句
h2 S; b8 P) n$ O b s X& u waituntil <condition> prio <integer expression>;
+ a6 Z$ p! L8 J2 s% l% h* g4 R- f ]8 t9 Q. ?7 ]
, |7 g6 G/ c$ y0 V7 p以上为常用的函数！
& @! |3 K3 F& s |- ^7 B还有很多，如有需要我把资料发到你邮箱里 ; l9 D! G" h _% _* o$ y m
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