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发表于 2012-11-13 08:48:12
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1判断语句
" s! Z. u- O0 m* f1 U if <condition> then8 E7 [; C Q$ F' Q3 m3 O
<statement sequence1>;
8 n9 r" c6 i# a9 q- _, L elseif <condition> then1 ~' C! E/ u# z( r
<statement sequence2>;
0 W$ R) D' y/ [ else
# E4 k. I; d/ t) e <statement sequence3>;
! W$ i) o3 s6 l5 y end;
# T$ K4 ~. v2 o d9 ^/ u如果分支比较多，用：
5 T+ Q. k z$ J+ Q inspect <expression>
; q! H& }4 A8 l when <constant_list> then
; ~/ M6 I" m6 @: A. A <statement sequence1>;
( \0 e0 W7 G0 P8 A when <constant_list> then0 R& o6 g) ~! t2 m
<statement sequence2>;
' u4 v" n0 m' s- a9 w4 A( g# f8 C ...
; c* Z$ @! K1 i, k else
: t& D; C* h# A: G1 { <statement sequence3>;
/ h: {6 h% w. a# E3 p4 K9 `end;! S' ^% c( p1 M
2 I- ] t4 m* u [% X, t2循环语句
9 c( n( O$ {5 ~' o4 n (1) from <statement sequence1>9 q3 L; Y6 T- ~3 h
until <condition> loop
, ^4 E5 i/ f3 C! l <statement sequence2>;
, E8 t/ N: M# t: y end;6 U3 P8 G6 Y, @* I
(2) while <condition> loop [% u" F2 g* z1 [. ?- [
<statement sequence1>;
' Q% ] k9 G5 |! c ?" y end;
) h ?6 v) {3 t (3) repeat . ~4 k8 S, d7 G" z
<statement sequence1>;
9 I# Y; u. B% M w% e until <condition>;4 r3 f: i; |7 Y- @- A
(4) for <condition> to <condition> loop- |5 W8 I- a$ k% O6 w( c# f! {% h
<statement sequence1>;; y. O" }" V# c& M- P
next;
* J8 r" \. Q- e3中断语句
" O0 t8 R# c, h' [- g waituntil <condition> prio <integer expression>;
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以上为常用的函数！" R7 g+ a" A( W* B
还有很多，如有需要我把资料发到你邮箱里 9 T3 w1 g1 s7 q) p( @$ {/ n
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