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发表于 2012-11-13 08:48:12
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1判断语句! o( `( ]6 _* }8 F9 S. q' E
if <condition> then9 z0 U& C4 G( `3 N7 ^
<statement sequence1>;+ l/ c' }( d% s# }: h" |
elseif <condition> then% b1 J4 [. R& q! u
<statement sequence2>;1 O+ V; x8 O/ l, \$ U# T
else
. O9 X0 a+ P# s" n4 l" J9 ~5 X& I <statement sequence3>;
& m( i! g! [( J/ B& Z6 H' Y8 Q end;
. o6 v7 z0 m" p2 ~如果分支比较多，用：
+ s; J) n1 P# C" M6 E inspect <expression>5 B( i! c$ p7 I6 I2 S! |% Z! C
when <constant_list> then$ F6 p S* m# W
<statement sequence1>;8 U: c. f8 F5 w; Z5 T
when <constant_list> then
* z& ~& _2 m) i* | <statement sequence2>;
# X! S% I+ S/ [ ...
, d) I* V- [2 t2 [ else
# J2 @) z6 D9 u3 x! g: S1 s7 U$ z <statement sequence3>;
H0 @- U& x! v, q) W& {end;' w3 A: U7 T6 |. d6 ?
0 N5 F9 ^" B. e4 _2循环语句
! y6 q! o M. u: w) _7 z (1) from <statement sequence1>5 w: J* Y, Y* f, \
until <condition> loop
5 ]: ]6 Z& }8 g7 n' o0 Y# o$ V <statement sequence2>;
1 `$ H1 I3 |( L# E/ L; U end;
7 v( i/ Q# a a2 E (2) while <condition> loop& f8 _5 J6 l3 D: @6 G% I) o% i$ s( k
<statement sequence1>;
' a: q9 d( t4 k& J' G7 h a end;, s* Y G* i* W+ W1 K
(3) repeat + y+ p. F6 Q3 G0 h6 z
<statement sequence1>;) N) Y6 `3 q3 B( p' Z
until <condition>;
6 `- ` p1 v3 U! n. X# o (4) for <condition> to <condition> loop9 o' t+ N. l- p
<statement sequence1>;
$ N b7 Y: i0 T. j next;
& n# r: h7 c8 V! H4 w# s3中断语句
( k. e! }) n( }: p. t: s; { waituntil <condition> prio <integer expression>;" Z1 u, t" |# c3 L q
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以上为常用的函数！
! f3 C$ U2 p8 [5 Y2 A2 x还有很多，如有需要我把资料发到你邮箱里 6 t: r1 ?- ]- a5 O/ W
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