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发表于 2012-11-13 08:48:12
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1判断语句2 W2 B' z( |% {9 n0 m3 p$ A
if <condition> then
: `! L9 ]. m6 j S2 L <statement sequence1>;; K% O% }, s& t, W. r5 G: H: m- O
elseif <condition> then
. m) e/ e6 ^1 ^' p) R% \) m' B2 _ <statement sequence2>;4 ?6 d+ G0 u1 a* L
else ! s( U9 @- s( T% y3 f3 j
<statement sequence3>;
$ H0 W/ |+ w6 r% k2 ?" [3 o end;( u, a* F, I: Q, M- N
如果分支比较多，用：7 D! u' {, h: q+ X
inspect <expression>
8 S9 F/ ?4 W, ?7 v {* u when <constant_list> then
+ W: x- Y4 ^6 o% `5 S <statement sequence1>;
) D) A H7 r6 [# U( ?( S _5 k when <constant_list> then# p/ H. I6 D. _4 _
<statement sequence2>;
/ P8 e; e! G3 U! | ...
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<statement sequence3>;
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2循环语句
( G& ~( m6 M' g! @( b (1) from <statement sequence1>
& E- g& z# I+ O8 h8 g$ C6 X% F until <condition> loop
. }& }" E6 f2 T0 o; p! ]3 B) y <statement sequence2>;( t0 J+ P4 k9 Z/ X6 i1 j, M7 l. K
end;
' h' _7 a5 q5 O. T (2) while <condition> loop% ], K& g# L" M9 A" J% c4 Z7 Q
<statement sequence1>;- x; x- V* X: l+ |6 w1 w
end;& }+ ~* J2 r. H b, f. a3 y9 x
(3) repeat % k% Z/ } D/ Q# \( t5 X9 S
<statement sequence1>;
1 O+ p1 N2 K, k w until <condition>;
- C c A. @) P( t& Y/ g* { (4) for <condition> to <condition> loop6 S2 _) A; _; r& k6 s
<statement sequence1>;
. P; `. P( ~* Z next;
& e1 T- a0 O1 |3中断语句
* A; d3 \ Y" u; W' {. @, h* S waituntil <condition> prio <integer expression>;
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6 Q1 n$ i) q4 S' I以上为常用的函数！
& J$ {/ N# P& y, E还有很多，如有需要我把资料发到你邮箱里 - ~/ z2 ^' n* O! b- _
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