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发表于 2012-11-13 08:48:12
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1判断语句, v. J& A) m7 ` p6 t7 r {8 b
if <condition> then
* U* X# I8 W3 K. | <statement sequence1>;
$ b5 Z3 Q3 ?' V. M* d3 M elseif <condition> then
% [; }+ M/ I. D1 Q. \! H! t. m <statement sequence2>;3 j9 g4 ]# i+ W. s' s" l, z# P
else ( |' S5 v! J p' J$ ?
<statement sequence3>;
- [. ~$ j; G3 }+ L+ r end;
0 b2 M: m9 `, a% a" D如果分支比较多，用：4 W/ Z4 n/ v$ M, A. T
inspect <expression>
0 m, ?2 `# V% ]) p$ _, Y when <constant_list> then( v: o+ M6 K' F% b$ |0 i
<statement sequence1>;1 W1 q9 t4 x! A+ `# A
when <constant_list> then% e; a) \( s& S. l9 B' j( m- K1 |8 {
<statement sequence2>;
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else( C* p0 X8 t- y, E8 b1 ?
<statement sequence3>;
) n9 f" r+ I" d5 P8 A9 R5 i7 Aend;
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2循环语句5 ]" p/ R: X% Y* p
(1) from <statement sequence1>3 A" w) o' U3 m2 e" Z
until <condition> loop& ` l7 B, _' H0 R4 {6 k6 @0 h0 E
<statement sequence2>;
" g0 q3 m* O# X0 _( u! r! q end;
. h3 i) ~. b8 k (2) while <condition> loop
- i, n# t0 j+ s/ G1 w$ w6 j. Q# h <statement sequence1>;$ q; B9 o. d$ y0 {1 h8 g/ {
end;( _$ o" J+ h U6 \& ~% h
(3) repeat $ E/ |% Z* a% R
<statement sequence1>;; ?" T5 `3 D( H8 _4 u3 W
until <condition>;9 G+ }% O7 q: g6 m7 o2 g
(4) for <condition> to <condition> loop
9 F# N1 J, X0 [1 N3 m3 g, b' a* s6 G <statement sequence1>;
7 X# I3 r$ k+ }% y8 O8 S next;% s9 Q) r6 a& X! [" V
3中断语句
. V+ c$ ]5 O9 c, t5 P8 q: ^. M waituntil <condition> prio <integer expression>;1 q0 W3 U8 }4 X
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以上为常用的函数！
% u9 x6 t" Q2 f+ T还有很多，如有需要我把资料发到你邮箱里
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