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发表于 2012-11-13 08:48:12
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1判断语句8 N% i" t) `3 A0 X
if <condition> then
( U+ l! ^+ o2 H) ~! F5 _ <statement sequence1>;# D5 ^/ k" M- [0 `; h
elseif <condition> then$ {+ g; [8 b* ~* a
<statement sequence2>;
# \3 `/ a0 }7 I: K4 l/ Y else
" e$ u8 h* r' u9 I" e4 G$ V1 g# Z <statement sequence3>;
p0 I" y$ p, o end;
+ x- |7 Q( C$ S. ~1 E& g8 W9 O如果分支比较多，用：
5 R' z6 d' [( a5 L inspect <expression>
& U" q0 F3 N% I( I when <constant_list> then
6 `( c s7 k6 Y <statement sequence1>;
3 K1 {+ l1 I" c when <constant_list> then) e. H1 m r' m$ j+ z1 ~2 s- ^
<statement sequence2>;. S- ~9 M" D! d2 R$ J
...
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<statement sequence3>;6 Z; f9 _" [+ x
end;# R) s( t- O5 v: B% K9 j% ]4 I
# K3 d4 N- C( }7 H; I2循环语句 I4 i6 S5 c4 F+ v
(1) from <statement sequence1>
2 ~4 s+ d5 G$ S until <condition> loop
) E8 y- B g. \) N$ H! W <statement sequence2>;
# N: Y9 z! K' c% G7 T end;
" L1 `9 _3 j/ C. c; z (2) while <condition> loop
* k% {2 S3 }4 h, H7 Y2 n <statement sequence1>;6 l+ y* G6 h8 }* _6 R- Z! ~* ?* Z
end; g, L7 R) i3 H, z& S/ d6 J) g
(3) repeat 0 h$ |) O+ I4 j
<statement sequence1>;0 ]4 D( b# o* T9 [6 C8 ^
until <condition>;) w! u) m: ~" y$ E' N" `4 k
(4) for <condition> to <condition> loop
( _2 c% }8 S- U6 ~0 t a <statement sequence1>;* x- r, {" U. [- G- {( j; \
next;" r/ g; R9 P0 @9 B5 C1 y$ |5 `
3中断语句
6 `# I: Q. G) J" [6 b waituntil <condition> prio <integer expression>;
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+ h$ i p, K. B6 q ^, V: Y, t! x2 O" V
以上为常用的函数！
9 o5 p' {$ U) M) e& [6 O. l0 X" K还有很多，如有需要我把资料发到你邮箱里 0 y2 h7 h. u m5 C
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