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发表于 2012-11-13 08:48:12
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1判断语句& z+ S+ i3 h6 O. Z( Q, ~
if <condition> then/ f$ v4 u0 Q, H- P5 L8 b5 e
<statement sequence1>;
' D6 P' i1 C, I: ?, Y( X5 p elseif <condition> then& d2 |; j. X; A, x/ w2 L
<statement sequence2>;9 F* W2 r/ |( U, y: n9 ~0 P
else
^; T2 h, x. V( F+ k <statement sequence3>;4 F3 H' h+ C* ~# Y& ?* N' G1 ^5 J% R3 c
end;
% F& N- Q& P! Z如果分支比较多，用：. F: l5 c# c$ F8 n$ W1 V r
inspect <expression>! s5 W) o! x$ l& w1 }
when <constant_list> then+ h' L2 O2 E+ C% B
<statement sequence1>;
+ i0 g4 V; K k- k1 Y: w+ J! R* s when <constant_list> then
0 ~4 E; Z4 K' M `4 a/ h/ z <statement sequence2>;
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else
3 ]1 S7 y, S8 b <statement sequence3>;
5 M7 d1 M6 V8 E$ ~) O4 \: k' W J3 cend;. [3 R0 T" p2 n$ }- A; ^: k: n* j
, T7 z" K7 Z8 l# I6 w2循环语句
% f& K- R- _0 l* n5 m8 l (1) from <statement sequence1>
! } J! [& I2 }( w3 a7 W until <condition> loop6 [' v% d V0 y' w4 Q
<statement sequence2>;
* ~1 p5 }3 {! C+ I8 M end;
, L$ K# |5 U2 c- \4 r1 q+ k- S (2) while <condition> loop( P* c" ^( H8 R# c
<statement sequence1>;
% c- s- e1 ?' Z" h: b end;
2 k5 j# j8 ]8 q% T3 O (3) repeat 0 U. ?; m, L: ~3 A$ K4 V
<statement sequence1>;
* ?2 p4 @! Z: P0 a! R; |- @ until <condition>;
! l6 s8 z+ T6 m- a9 v4 S$ M7 F (4) for <condition> to <condition> loop' D8 a) Q7 c: A$ ~/ I
<statement sequence1>;
3 g8 I& p) k2 y d+ i next;
3 N$ a& `9 Y. l I/ s/ }3中断语句
& e ?1 F. {$ r8 r& | waituntil <condition> prio <integer expression>;0 {3 X! l6 L( k0 z1 G5 \4 B
r% q, X1 l$ G3 P8 n9 M. X
: }0 \9 F5 t9 Q! r, F; g! }以上为常用的函数！% {5 H: D) M$ v( h
还有很多，如有需要我把资料发到你邮箱里 ; E# L: K1 {6 e: c3 c3 q. r. a
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