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发表于 2012-11-13 08:48:12
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1判断语句0 `/ \& s/ J9 g
if <condition> then
; g% Z# k0 c( O8 w. z# b: } <statement sequence1>;' r: M0 g8 V/ b6 z
elseif <condition> then
0 v) T% ]+ }, T3 l' `8 `* J; h <statement sequence2>;
0 P I& [. Y, R0 w# z' U( a else
/ I* |! @5 e9 W1 B. U <statement sequence3>;, k* w+ |: U: [5 {; i1 j8 v- W
end;
, A7 [0 q3 q" j' J6 r如果分支比较多，用：
' g: `- f1 n: [6 X _: F3 r inspect <expression>4 k: U! d1 S: _9 A- Q: b
when <constant_list> then! l; o/ x' I+ |- U" l0 {+ S& y
<statement sequence1>;1 p+ F, q' E; G) Y+ W- ~+ ?
when <constant_list> then# p% N& S2 J: U7 N2 _/ O8 g
<statement sequence2>;, ~! h8 \4 H c' o* u! I
...9 |" p* r' i4 x3 z- h2 a" N8 R
else
1 z0 o0 M4 B* e8 q* x <statement sequence3>;
% K- q* |8 J% M" o2 Nend;
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0 Q Z T: W+ e0 R- ^! y, k2循环语句
/ C9 j1 i/ P) c0 Y' g/ |1 `4 l (1) from <statement sequence1>( c c, }( U" x- o' B
until <condition> loop7 _+ J# s5 J) U) l' J$ b; @
<statement sequence2>;& h0 Z V, c4 D6 c% K7 M$ s% c; o
end;
d" V- z& Z- a C& ~ (2) while <condition> loop# C6 Y5 Y8 M. h8 I( S+ _4 ]$ G
<statement sequence1>;
, r$ q+ z( U5 \3 @$ m end;
! `8 r! d) y7 T% J5 c# T3 D: T7 a; ^ (3) repeat
: c: v* S$ @8 e7 u. t+ k <statement sequence1>;
/ _% Y% J. o# _' h) V until <condition>;
; V: e; _1 l7 ~" z+ e (4) for <condition> to <condition> loop
$ u4 A8 i9 T( Y* X: Z3 Z, I <statement sequence1>;$ o R# T0 b$ W" D8 m% k
next;
& Y* E9 p9 l( S* j3中断语句
% o; F; A3 d$ X& Y waituntil <condition> prio <integer expression>;
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以上为常用的函数！
, U8 e; f4 {4 P6 B: A( m* O还有很多，如有需要我把资料发到你邮箱里 ( \1 o0 w% }& f' Q3 u/ w
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