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发表于 2012-11-13 08:48:12
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1判断语句3 I# u7 r8 r, D6 J2 t. d( w
if <condition> then
7 {9 T3 H# ]+ @2 `/ b <statement sequence1>;. ^1 R: [' _, R) ~
elseif <condition> then. s% G$ }2 `3 W% s/ q9 {
<statement sequence2>;
8 k- U( Z- z+ p1 N6 q3 S else
9 z5 S* ?& i$ {# r( G <statement sequence3>;# ? W4 T* X F Q ]
end;( |8 D# J) h! N
如果分支比较多，用：3 ~" o* m* z1 ~9 G9 _
inspect <expression>) |! ^3 |$ k( C' X, G
when <constant_list> then
5 w# I# }9 b+ N( K% j( P <statement sequence1>;
1 o) ^9 D- @# H: `9 B5 s when <constant_list> then
* X$ n8 t' b g6 M: z <statement sequence2>;/ p7 m5 I2 t" x- `
...6 U. T0 h7 T: w2 U1 u+ j
else; p9 c% h+ W/ ~. Q* l6 |
<statement sequence3>;" W8 |1 y( s0 w% G& r% o
end;
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2循环语句% X! ]& c- B$ K! ^% m. X; x4 p( e
(1) from <statement sequence1>
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<statement sequence2>;0 O& I! d* f0 C0 r* T4 d- F, l
end;5 o3 e# a6 n4 d0 m) F
(2) while <condition> loop
8 T/ [% J, {* G0 x- \3 \ <statement sequence1>;
8 f# Z4 w( s0 L% \2 `4 K5 |! @. w end;
1 D3 w, w8 Z# I (3) repeat
3 a! v7 M- t- L* n <statement sequence1>;# g. e4 m" a0 ]5 Z5 F" q W; t. a
until <condition>;
o, M8 Z- w7 s/ W0 F8 s! X (4) for <condition> to <condition> loop
, f5 f5 ?1 t/ ` <statement sequence1>;
; x6 Y! O8 b7 p( ]) c8 L9 { next;: V7 ?: o2 W) y2 B
3中断语句
, E: s ? L8 c' z. K! P; L) A waituntil <condition> prio <integer expression>;$ p; ~* N" ], L5 g; b4 ^. Z
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以上为常用的函数！
* O# x1 p" C6 w还有很多，如有需要我把资料发到你邮箱里
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