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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
; r9 C; t2 Q: G9 }/ L% L/ g1 X if <condition> then
" E$ D+ m( U) p& N, L, A ^! w <statement sequence1>;
% x# [5 U# t3 t& T) W' X6 S1 Y elseif <condition> then
, c5 x0 s# i" M <statement sequence2>;) i& y# {* {* n5 P
else / S( f6 C5 d- g: `4 G
<statement sequence3>;4 p R. m) T! ^. ^
end;+ W, S4 W) g7 ^. _4 Q
如果分支比较多，用：& S1 F( B9 c( P1 Y3 k. P
inspect <expression>
' g) m( u& ]1 D: v when <constant_list> then
3 @7 L- s) m# D4 P( D: } <statement sequence1>;
h* X) ^ P- W [3 R when <constant_list> then
3 ^1 l8 H) b# z$ V5 f4 j! j! P$ F <statement sequence2>;
0 z; R$ e* Z: D. W N$ r1 K ...8 ~7 A0 R6 y( n4 f- m7 n
else5 Y+ a: Z6 C" Q( h8 Q
<statement sequence3>;# ]6 ]5 n: n; c+ z3 ?7 P) V! j' L2 t
end;
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2循环语句
9 [# v6 s2 \: o! ?* I! N (1) from <statement sequence1>" a9 U* w$ r p; @
until <condition> loop$ ~) I) L3 `/ F. `( u. S' M
<statement sequence2>;
- @% A4 {0 L4 c$ G% n( a" z8 |' f end;, e( { S- [1 V7 U Y. E- |
(2) while <condition> loop
1 U" Z7 b1 P" V7 t6 k F <statement sequence1>;! A( ^0 B1 ^1 E$ {$ G* O0 C/ }
end;
, Y: R7 I6 _: {; d8 W5 k: v3 h; H (3) repeat $ O$ w' N; O) A& z% t
<statement sequence1>;
" B9 t" ]1 G+ Z( K2 N/ b+ _- a/ z until <condition>;2 u9 b/ h: V, T; i5 v, G
(4) for <condition> to <condition> loop
1 }0 C4 ?1 R# |6 s" ^8 [9 c <statement sequence1>;0 H' N4 o4 f) ~& Y0 K# x
next;' P$ k6 N6 U0 k4 ?0 x: }, Y
3中断语句/ w+ F2 J/ a/ V8 I( P5 _
waituntil <condition> prio <integer expression>;
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3 f' Y5 q5 X H( ~3 B2 [, j2 b0 F以上为常用的函数！
) [) Y; C! K& U9 ~, a7 d还有很多，如有需要我把资料发到你邮箱里
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& \& _: H W5 b5 R0 p" h* a2 u , [ A$ e) ? D
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