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发表于 2012-11-13 08:48:12
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1判断语句 [, P+ T& y, G; E0 \5 \
if <condition> then$ O3 P) g; T6 v# N* k. W
<statement sequence1>;
& Z; S$ |, \: _9 ` elseif <condition> then1 T& H( I' a5 p
<statement sequence2>;5 i2 P9 G" B4 M9 e* w
else
' r% b7 y3 l7 g5 Q* m <statement sequence3>;* \# M! | _+ ]3 p, D, D \
end;
0 ?) I' s! F; o# H' N9 t8 M如果分支比较多，用：
2 p0 W( B3 P9 c g; k7 W6 T8 r inspect <expression>* y; K9 m2 Y1 _
when <constant_list> then1 x H p5 w5 M; n) ?3 F
<statement sequence1>;5 T- L0 C% h: ^
when <constant_list> then6 u' ] a8 t1 L- L1 g9 r+ M
<statement sequence2>;% D4 k$ E6 S% p; h& ~$ d
...( `3 Q4 w8 ^ m5 q {
else
( ~7 ?1 z p" r, U$ m <statement sequence3>;& r+ G* q0 K$ p" G; q4 f- {
end;
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2循环语句1 m: A1 ]4 w0 m2 F& e/ w3 p
(1) from <statement sequence1>
. @3 u, e5 N: l. z. U; R+ W until <condition> loop
1 @! H7 H+ N- K6 E+ G! j <statement sequence2>;
0 X' p( `4 N9 ?2 n2 i end;8 r; [/ G4 E- S/ G6 U6 R# T
(2) while <condition> loop
! Q8 z, P# K* q5 c$ m) t <statement sequence1>;, s8 A. l" t& g+ X. J
end;) {3 F1 ^$ W, m5 J
(3) repeat ' y$ G( A1 V6 W( z5 W0 p! N8 G
<statement sequence1>;* {/ j( h ^2 b8 _! C' ]- \9 k
until <condition>;
; z3 v! Z) C; s1 `, F (4) for <condition> to <condition> loop
' [" W" Y& I. S, x% T <statement sequence1>;5 g& Z8 a% n6 n2 C: s
next;0 c; B4 R4 b! {+ x( n F1 g
3中断语句
5 a! a, w0 U5 H+ ]. U waituntil <condition> prio <integer expression>;+ {* n. [' q. _$ }5 S6 g( u
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" O( J y) |- ~% j2 @" J$ }$ M/ _/ C以上为常用的函数！( y! y8 Y$ ?3 L. X# g
还有很多，如有需要我把资料发到你邮箱里 . A3 u; }: F* R B2 z0 _& Y& v7 m/ ?
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