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发表于 2012-11-13 08:48:12
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1判断语句8 x" w% F" ?. D2 r- c, D/ ]
if <condition> then
, r* N7 n3 T' ]0 D3 \8 V <statement sequence1>;
4 e+ P( b- j- c elseif <condition> then
/ |9 o- | X$ F- y <statement sequence2>;
7 p' F$ k% c- B6 h9 [, X else
2 n$ F2 T9 a9 H+ T! D1 C7 j <statement sequence3>;4 b0 L7 m" O d) {& m" Y
end;
4 L; H# E/ ?# F% V3 M3 s" _如果分支比较多，用：
/ Z8 a! Y$ B6 A" {0 X% ` inspect <expression>
! Y: p/ s* D6 g( F5 @ when <constant_list> then( x. V7 ~/ l4 ~6 @/ f- l" Q% r
<statement sequence1>;
0 m' y6 P2 y# {2 w; i3 o5 J when <constant_list> then% V# q6 ^' y) A! v
<statement sequence2>;
' f5 c: Y+ \5 L ...
5 j# C: G% S; D; n else
6 Z, Q% S2 `& a" A, k2 V <statement sequence3>;) p9 {$ z9 r- E+ M0 s& M0 ]. z
end;/ ?0 _8 {& E1 y1 F7 {
' q( Q9 p+ w/ v3 A/ ]2循环语句$ E% B+ _' U. L6 ^
(1) from <statement sequence1>" N( [0 r) G$ |; ^
until <condition> loop
z f; s" O6 R) p- a. e6 D <statement sequence2>;
. e9 l0 t+ I# ? end;, c3 u: q" o1 E
(2) while <condition> loop
0 f- l/ o6 [# C. S <statement sequence1>;5 F" [2 }% ]# B( r I3 a. n' Z, V! s
end;
1 P+ @) T. X4 O, P+ ?& n& t (3) repeat . C/ Y& K# L$ f E$ B0 }
<statement sequence1>;' [! d2 T1 _3 Y! E4 e! T1 `) D( E, p
until <condition>;
8 X, ]# m3 @/ R d0 k (4) for <condition> to <condition> loop
8 T5 b& t2 D9 z' e6 w: E i <statement sequence1>;
3 t9 H- L+ |6 T8 Z( I* p) ?: b next;
+ d. }% D8 t/ {+ h5 N( W3中断语句8 q9 h- \/ |; i- G) s; a& h: q4 h
waituntil <condition> prio <integer expression>;" U/ D! R1 q/ b7 l# C0 k
4 o: p: c: V r8 }- Z5 G$ ~
, V! p. d: H; s$ b5 c& i) m7 ~以上为常用的函数！
( v- N' Z# S+ y; K还有很多，如有需要我把资料发到你邮箱里
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