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发表于 2012-11-13 08:48:12
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1判断语句
* L3 H3 \% J% Z, `6 J. H2 y if <condition> then3 r$ t% y% f6 r' G
<statement sequence1>;
0 x! ~& k* r+ {. N, m+ s( y elseif <condition> then1 y0 o" {- y7 n( h! z. p* `* C+ ]
<statement sequence2>;5 n. F, `! ~5 Y7 X
else
1 A+ l8 C2 q" e <statement sequence3>;
' ^$ X' Z) V5 G+ K/ w end;# u9 e* g1 Y* }% Y8 n) p+ X
如果分支比较多，用：' H1 H7 @( u4 ? ]3 r
inspect <expression>* W+ w' n6 L1 t+ o
when <constant_list> then& s# c# i, I: V5 H
<statement sequence1>;
# M$ v6 o8 _( J8 U, p: Q9 O when <constant_list> then+ R1 T5 X2 r7 N2 I+ T
<statement sequence2>;
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else7 c4 ?6 ?* N& Z( `3 O3 H
<statement sequence3>;
( y# ]! ^& C# d9 v4 c( `2 Q" cend;. |9 M9 w1 {6 W$ }$ k
# [$ Y+ ?- ]- }5 |2循环语句* m% W9 t2 b, V+ O6 G [
(1) from <statement sequence1>
' n0 {6 r4 ~. q( N, [+ X until <condition> loop
- ^2 l$ h) w( ] <statement sequence2>;
9 y! `. Y% n3 F3 N* A, l) y end;
`6 C* G) m" j# n y1 m! r (2) while <condition> loop2 e) i0 F( p5 _4 T. n! s. M
<statement sequence1>;% J9 U$ W$ ^, O) L
end;3 p$ o- R* |2 U$ K
(3) repeat , x' J) B# T ^
<statement sequence1>;0 F& s' b4 \# S/ {+ f
until <condition>;1 n! c2 y$ I2 s, B' D0 f6 }
(4) for <condition> to <condition> loop
+ }) ~8 |- M1 J <statement sequence1>;
) d4 h% c5 U; O" ]' f) s next;2 P% ^# `; F+ z
3中断语句
- d) `3 K9 y e6 I' j waituntil <condition> prio <integer expression>;; v0 M3 P% V- i
- Z% {# v; t" H6 u8 I! r3 k' ~. w" B. Q' l" X+ |
以上为常用的函数！
: o/ v3 I8 N M9 r4 I0 s还有很多，如有需要我把资料发到你邮箱里 ; Z3 X9 h2 f5 Q4 Z
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