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发表于 2012-11-13 08:48:12
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1判断语句
2 o! D# T b* K: T0 T- t. e if <condition> then. x0 F: a+ L {9 T
<statement sequence1>;: \5 Z. p7 U3 l3 C. a8 V
elseif <condition> then
1 M' o; u) A A6 g" ]2 S <statement sequence2>;: }7 Y3 I+ p4 I4 g, i+ E" @
else
9 V: k; ~. E+ A ?0 c9 I <statement sequence3>;! N3 f. d2 [. O
end;* q" W h3 b4 ~: R$ t/ V* A* z. i
如果分支比较多，用：
! E( v4 E7 r+ j+ w8 L6 s inspect <expression>
8 r4 s, H6 ]$ a9 J when <constant_list> then9 W8 {& f, ]( y# w6 `
<statement sequence1>;
; N' x9 l. {" { when <constant_list> then' k9 g6 F* P; I% J7 U
<statement sequence2>;6 M# p5 r5 F' u/ C+ [0 H
...
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<statement sequence3>;
8 ~3 ^8 H7 u$ `end;9 b( Z o- B% E9 N9 V2 R8 j. w
1 N+ b4 y$ O2 Z9 u2循环语句! N2 t' _* z( W: v N0 B0 x X2 N# D
(1) from <statement sequence1>% s' x: T, F5 r' ^: f
until <condition> loop* t& @" [( B7 M) o7 \" n
<statement sequence2>;
3 ?7 \# |6 z Z% S end;0 _" P) d7 p4 y4 w: J3 y1 R- u
(2) while <condition> loop6 N/ ^( ?# O5 m+ {3 J
<statement sequence1>;; v1 z! b, C; t. o5 \8 r& I9 s5 T. g
end;, G% `0 `* @6 d% J6 R
(3) repeat ' U2 Y2 R- D) ?- w1 d5 E
<statement sequence1>;6 J) ` v: d* o& i, f4 ^0 w
until <condition>;
8 q3 N' B5 `" S' ^. j. _8 A1 u- q (4) for <condition> to <condition> loop }( z' d G6 ~
<statement sequence1>;
, _' o( l$ m0 Q# J8 Z next;
9 y# _) U$ g4 K6 n! H' P3中断语句& Q- _; c0 L7 A7 D+ ~
waituntil <condition> prio <integer expression>;# a; ]. x& J+ y0 e; _
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1 e& j! [, X$ [$ B
以上为常用的函数！
$ `( F" J# g0 j4 `# a6 L还有很多，如有需要我把资料发到你邮箱里
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