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发表于 2012-11-13 08:48:12
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1判断语句
* g/ \( n1 [9 B- o if <condition> then8 Z# f _, [9 Z& N$ ?# U
<statement sequence1>;
4 e9 c7 i% Y: w! O+ U$ {. F A elseif <condition> then0 X+ R3 v0 N5 j$ c" m0 Y& }! k* ]9 k
<statement sequence2>;
& p& n5 T' ~3 J" N: x else
$ U9 o0 l4 C: G <statement sequence3>;
# c! k2 o5 c' p O end;
9 { k4 ]9 u7 B/ t% W如果分支比较多，用：
. o3 U0 m0 R9 {( W inspect <expression>
5 H- }4 i [$ Z7 B when <constant_list> then
$ j7 p' t( P2 k9 @ <statement sequence1>;4 H) w! t& G Y) i+ ]
when <constant_list> then, z$ t" N e$ k N
<statement sequence2>;% L7 w5 s9 n3 K* V
...
5 C+ V% Y& z* I! r% M7 ]: f else
' P+ p0 M4 C8 R/ X- r" e- D <statement sequence3>;
d, E; {6 m: e9 Y! E. b3 x9 |# ~9 I4 jend;4 A) u1 O' v* t# k
1 @ Q4 q1 w% Y8 Y2循环语句
6 A9 ?; t, v( Y( p; G (1) from <statement sequence1>
$ y2 a( z2 {' }) } until <condition> loop# D$ d7 L) W4 B5 B( T
<statement sequence2>;
|! | j! G9 Z6 ^8 d7 X8 D! N' C end;; ?* M. ~. G% Z0 ~0 [2 C3 b
(2) while <condition> loop
( B7 T3 _8 u, L <statement sequence1>;
' ~) z4 G; v/ L/ @ Q# \4 z3 X2 { end;
# p1 b1 n& [: a( D- i- }' l (3) repeat
7 O" s- ~6 r" Q' V <statement sequence1>;1 f2 e9 [6 { E6 I v" Q5 h: k
until <condition>;( }' ?, S5 Z6 P- u( `: i
(4) for <condition> to <condition> loop
4 S9 o O: D9 w <statement sequence1>;# t8 G. {7 k( K1 o
next;
8 f" @/ P& n7 z6 j& Z9 d& a# K* c3中断语句
' p2 {4 B6 D- O i% O waituntil <condition> prio <integer expression>;
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' g8 x* I, h3 q* l/ Y+ |9 ?9 E) C6 e8 H. I' T7 _: c/ D% l: M' \
以上为常用的函数！
6 y0 G5 ?! B" t0 f) e还有很多，如有需要我把资料发到你邮箱里
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