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发表于 2012-11-13 08:48:12
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1判断语句* H7 x% W7 |2 q9 O- j0 `" x# G
if <condition> then! b5 n# r+ P$ g) A Y
<statement sequence1>;
: r0 o" A5 j% r! v( J5 C elseif <condition> then
2 T4 b2 S3 N2 v3 R& } <statement sequence2>;- P; t m: y4 D
else
3 u9 K: q: t3 I8 p/ n <statement sequence3>;- X* I' J" H5 E+ G# A9 ^
end;" R8 [6 f5 u W' y+ c" U+ p' w) v2 i
如果分支比较多，用：( Y$ C% H& A" ]) h
inspect <expression>
% z7 f' T& X5 w8 G1 l* W' [2 E) W- i p: g when <constant_list> then
. G2 O3 C6 ?4 W; N <statement sequence1>;6 x; _& u( x5 g# A4 k
when <constant_list> then
e5 A' M$ Z! Z& }. V% Z4 C <statement sequence2>;+ j$ ]+ C7 B; E8 |: i
..., T3 ?$ C" q& Z5 T) _$ z
else
" N4 [; b: j4 b% i; U1 L% J7 z <statement sequence3>;2 k8 r |) i) n7 j8 T0 T& l8 J/ t
end;9 X" {$ p) r6 r z4 u# I
' |3 N% B8 y6 h. g2循环语句 w9 v8 |) ?5 W/ ^, b
(1) from <statement sequence1>
$ `; A2 O. @6 i until <condition> loop7 E1 h$ M! u# h9 ^: N$ i6 T4 u
<statement sequence2>;
+ g8 \ s* c' |' t+ s! |) I; b9 R2 Z end;, Q4 f* ~) D( Y
(2) while <condition> loop
. w5 j* \' m0 V/ O% o <statement sequence1>;
$ p1 t6 m3 U' A end;
$ W, Y+ A2 P/ t% {9 ] (3) repeat - I' G0 y2 U: l7 {! L9 e7 b
<statement sequence1>;6 B6 H6 Q! x( @3 Y( K
until <condition>;$ Q- _) O" L4 M" W$ _3 `& F7 A
(4) for <condition> to <condition> loop
( K1 _) A5 f9 B A! \. J0 V <statement sequence1>;* K: @' v7 E b2 U
next;
# }6 g3 y" J" c- T8 E3中断语句
$ l8 y( ?" y* t2 |3 ~" {3 F: h waituntil <condition> prio <integer expression>;
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! J5 _$ `! K" c* A. m% r! u以上为常用的函数！% M( `% y; i% a6 X( V
还有很多，如有需要我把资料发到你邮箱里 " B) J5 d+ w; g P U& B9 M
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