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发表于 2012-11-13 08:48:12
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1判断语句# f5 h& [! h5 Z( J+ @) j& \4 |1 R
if <condition> then
% e2 \- j4 i# ^1 M4 W6 O4 z" I <statement sequence1>;/ q' B' T1 K8 y0 I4 l2 q. z5 e
elseif <condition> then4 Z5 P( m/ k2 j3 ]9 ~
<statement sequence2>;: I$ c$ d( p4 G. \; E9 [( q% i
else
& ^! o. y) c/ @ <statement sequence3>;
0 A3 K: R/ @! l8 F- j+ w end;
9 t+ k4 a- J5 \4 Y% X如果分支比较多，用：
9 H( s% h0 j* W/ n/ S* H+ F% i* B inspect <expression>$ Q5 l" A& Z5 X! X
when <constant_list> then& K) Q! L }6 W! r+ I+ z9 g
<statement sequence1>;* R' N3 H2 ]; M& p( L! P- d
when <constant_list> then
- W' Q% A! s( _% `9 v <statement sequence2>;
5 Y9 H/ ~! J3 C3 M9 u0 [3 o; @) v ...
) L6 i: k5 Y" Q: c else
, I. h9 q; \5 z7 L$ y1 Z <statement sequence3>;
6 ]/ J: Y: o) h; C: u, ]end;
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: Q; |$ a- ]8 `7 @$ Y$ A9 `9 g/ O2循环语句
- M8 l" A, Q) p4 n3 c (1) from <statement sequence1>: d4 b0 L& J: r6 R
until <condition> loop
8 r+ y% v: M$ U% ^6 e! m' a5 H, k( x <statement sequence2>;9 ]8 }# x' H O$ y, R4 U) C
end;
1 d$ x, w% C4 A# f& v8 H% H* c* S (2) while <condition> loop
7 P% l! t: |& M( V: ~ <statement sequence1>;- ?' o* c& e' _' r4 ]* F2 y
end;
) P7 \8 |/ w( U) z( `# n (3) repeat
' a' F( i1 L" y" n/ L) [* T# _3 k <statement sequence1>;
/ O' o9 P- c" m; B until <condition>;9 y! y3 O C9 k# _
(4) for <condition> to <condition> loop
0 Z3 x6 \3 k2 {1 K9 ? <statement sequence1>;
- E. E- o$ f) p J9 q! [* ]9 ] next;
$ f/ p, K* H+ F1 L6 y# x0 m. @3中断语句& s9 @) j. c# ~* P1 Z; j
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
, h f; N& z9 N( M- A1 q! Q" U还有很多，如有需要我把资料发到你邮箱里
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