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发表于 2012-11-13 08:48:12
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1判断语句- r' ]+ Q0 ]8 U- |/ `! L
if <condition> then5 g: ?6 f5 i7 \
<statement sequence1>;
4 c& q3 ]9 M( r* { elseif <condition> then( @) D/ t+ v4 B0 o
<statement sequence2>;
5 a5 r7 s) T( y* w else
8 ]1 h: r) N7 N" s* J+ q <statement sequence3>;* L+ L9 M( b: u
end;) V. y! R$ u2 q& R" Z% Z* h
如果分支比较多，用：! i4 d2 j& y5 I8 i: f" x0 r1 ]* X! `! u
inspect <expression>
/ R$ q0 J& V& B when <constant_list> then
% _/ `2 o3 g7 u! }7 f6 w6 a <statement sequence1>;8 a6 Y- h% x3 A9 Q4 i# c
when <constant_list> then
: h! v q2 z! Y( N <statement sequence2>;9 c ]& f5 j7 y
...
# s! I" }0 \. u a else
- F) ~8 t' r9 x+ u" f, R <statement sequence3>;
) a% r! x9 Z5 gend;
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/ n8 C, u3 c9 Z6 P* e; n% T2循环语句
/ C8 f* t7 o& Y) M (1) from <statement sequence1> r! O' W$ |, J0 v
until <condition> loop. Y) i$ u5 y" N% C: ]6 B
<statement sequence2>;% s# M& Z7 n9 \3 e5 F+ Z9 i7 j
end;) i1 ~7 ?. q1 N' |* O3 L; h
(2) while <condition> loop! v) u M6 ?7 x: V: K! S8 g/ Y
<statement sequence1>;
& @3 y1 g3 Y+ V3 w$ k) F7 W end;
O" Y, R( z q: J9 w (3) repeat
3 }7 w+ [( D1 d7 j8 f, q <statement sequence1>;$ E! _! [1 [0 A! a4 m$ ]; X) G9 F
until <condition>;% ~8 c7 s( x2 ^6 a4 \1 p
(4) for <condition> to <condition> loop
. B/ B2 S. @* F8 M <statement sequence1>;
6 Q( b l, L7 |0 x8 P6 H7 M) A next;. P2 ~7 p/ p4 R
3中断语句
1 i! I9 W- n" Q0 ?# X waituntil <condition> prio <integer expression>;/ n, _( l z* g5 L# [
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以上为常用的函数！" [$ M% T$ M. J9 L
还有很多，如有需要我把资料发到你邮箱里 % B5 ^' H0 e1 M2 ]% O/ ^$ C5 l: P- v
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