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发表于 2012-11-13 08:48:12
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1判断语句( k8 |7 h/ x3 }# Z. N
if <condition> then
( F1 X: P, p+ Z. ^( q' S <statement sequence1>;
2 a e9 d) E! j2 W; W. @) a) j elseif <condition> then
: T5 v, B3 `& [- D+ d, _ <statement sequence2>;
2 S1 J. G3 I- V3 E else
( f; I' }5 U7 g# O9 Q <statement sequence3>;
9 r" Z2 C& a: L. [: W7 ] end;3 @3 q3 P# i1 V8 B3 H8 v' _
如果分支比较多，用：
/ C* C; Z+ |* x. v$ B: e inspect <expression>0 j6 U: q; V( \8 ` N5 a
when <constant_list> then& d. Q5 B* v5 G" D6 t" K2 _# L
<statement sequence1>;/ t; V4 e. M0 J# B; N
when <constant_list> then
7 |$ {- r* A _5 D+ N4 B" L <statement sequence2>; P- {; f1 m) [# [4 @! f1 `; F# n
...$ l, s! Z2 {: K9 j& T2 u
else- l) k4 g$ E8 {6 E4 g/ t
<statement sequence3>;
% n7 O9 J4 |" v( F7 q. z$ ?end;8 f% ]7 Z+ E# D/ E* W8 q
$ F8 }2 D. k! e4 ^4 B2循环语句
( V6 Q# |( ~1 c; D( F2 I! f (1) from <statement sequence1>
# [. S- z: l: S1 y4 e until <condition> loop1 E6 q1 X4 t8 {3 b
<statement sequence2>;
1 ^! z# M! w8 k$ X0 Y2 U end;) e7 D t0 s' q# C! X; I
(2) while <condition> loop8 G( c% y1 a: U7 Y0 J0 T# U
<statement sequence1>;
6 D6 q; S8 H/ K' T end;: ~- v' Z1 w/ s/ j: ^, J
(3) repeat 9 ^4 e; p6 Q0 b! q/ s+ C# i( i
<statement sequence1>;
( H+ i/ C) F% H+ P3 D1 ~/ \ until <condition>;. l ?$ m( ?6 R: }/ o. m
(4) for <condition> to <condition> loop* G5 \1 X" G( u9 g z- K+ S
<statement sequence1>;
( m* p( N. W) o% X. z. U& L8 k* \ next;# A, `0 k, }7 W2 s. |4 @
3中断语句
* B0 L# z6 s: w7 N. s. u waituntil <condition> prio <integer expression>;
4 ]3 s. X- f$ v% ?; j
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以上为常用的函数！& E6 ~; j& V( O& ]' O% e
还有很多，如有需要我把资料发到你邮箱里
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