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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" n- E# R; E, L$ t* D if <condition> then
7 H8 L$ U* h T$ Z* p+ g% H <statement sequence1>;* d* H! T2 x. [ Q
elseif <condition> then
! J8 F( J) \/ A( \3 @( C; O I <statement sequence2>;! G e1 g i# G+ v* \
else
' u2 y& Y" t9 |" |) K <statement sequence3>;
; n8 I3 O4 s) ]+ o3 d% l y end;( A+ ?/ d1 g0 k+ s3 q3 T
如果分支比较多，用：" g y5 V) V" p
inspect <expression>* k' S! ?$ ]1 ]: c9 h' a( A
when <constant_list> then
+ D7 v' @3 t: M <statement sequence1>;- T# q1 {, I- y7 i' W0 o
when <constant_list> then
3 e1 d, @: s% X+ P0 j( A" ~ o <statement sequence2>;
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else
- s, O2 D* p; C1 ~/ c0 n: y, X <statement sequence3>;# t7 x: @/ Z% @5 Y# I3 l2 h+ b
end;, X! ?8 j7 h: g2 U( w
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2循环语句
8 ~6 @# v+ f6 X; r (1) from <statement sequence1>
+ `; h5 T' E0 K0 Q8 y7 W until <condition> loop5 I! V( m" ^9 {' x! t
<statement sequence2>;. R8 ~9 k3 v& m$ ^
end;; O6 n' I7 N/ R
(2) while <condition> loop
( `. i( G: M7 E* U7 |9 R; {: Y <statement sequence1>;
^0 M, [& n# n# t; x end;1 y I' H' [0 M, w7 \" G1 a( M3 E2 j: K
(3) repeat
! G! M/ r% u/ Z1 i4 V <statement sequence1>;8 e8 L$ E% S2 m# }0 j
until <condition>;
5 d' p7 q1 O: N7 ]5 Z+ M$ B (4) for <condition> to <condition> loop5 l* X! c. c1 f4 X
<statement sequence1>;
5 [# m- M B" y1 a. z6 f8 @ next;
3 f; O- g0 @$ Q" s3中断语句
7 f- V# Y6 ^. A4 E waituntil <condition> prio <integer expression>;
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' O; d! f1 L# a/ P# J6 x' e6 G6 U以上为常用的函数！
& D4 q5 {, S/ U还有很多，如有需要我把资料发到你邮箱里 . N5 ^8 l6 F8 K+ ~
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