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发表于 2012-11-13 08:48:12
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1判断语句
: l9 K0 Q, A$ n; |+ c9 O if <condition> then6 A5 n* e& d6 a4 b
<statement sequence1>;
9 j; V' g! z6 Z: R% Y- b elseif <condition> then
, D# Z1 u. x8 i u' Y3 R <statement sequence2>;9 O$ u8 W$ f; k7 L
else
" [( z3 S- B4 o* u. x <statement sequence3>;4 N& E% x8 n; U' d$ u Y. M
end;/ Z! x; J# s2 X0 W; w
如果分支比较多，用：
4 d4 B* Q4 z0 j7 { inspect <expression>
. O8 D" B% F9 N P- f when <constant_list> then4 T4 Z+ Q* T% P9 i" Z8 x# \
<statement sequence1>;
: C( [5 Z) ~( u% L9 F7 [! v) |- V T when <constant_list> then
9 j* y8 w2 W& P <statement sequence2>;" O( F$ T5 l8 G& ?% m
...) E$ [8 U! N& s; T; ^
else+ v! F& n4 l- i* B0 q9 z
<statement sequence3>;# ]8 n# h9 m# Y0 x% m! o; p
end;
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2循环语句
9 }1 x# j8 q! g [8 ] (1) from <statement sequence1>' f8 C: y g, i/ }+ {
until <condition> loop1 j+ g* Z& c# h" m H
<statement sequence2>;6 L/ r1 D# \& O" K, U% s: Y
end;9 L% M8 a+ y* `9 a1 @ j
(2) while <condition> loop
; P( D& b w' |/ b <statement sequence1>;
8 e( _- f/ n$ ] s0 `' H& [5 \5 B end;6 S/ s. L! }- O! M4 A) r/ U
(3) repeat ( Q1 r# f( a/ p0 h
<statement sequence1>;4 G/ t. a3 ]' i$ N- Z' _3 H
until <condition>;
) c; o2 Q. u& _ s) |6 t% g G (4) for <condition> to <condition> loop
% p/ T9 g* F$ {+ I6 ^ <statement sequence1>;" ~( |+ M/ i8 H: y! H
next;
1 |& @* \7 H. X! u( R3中断语句
/ D, @: W+ E: V7 K+ e waituntil <condition> prio <integer expression>;9 } U, S3 R7 w+ _/ F* X1 A2 {
/ _3 Q9 R- u- J0 \1 E& \6 t
5 D& z N3 _9 g2 E: @7 B) y% j* B4 A9 Y# A以上为常用的函数！
+ s. E: ?" y7 W0 W% c0 x还有很多，如有需要我把资料发到你邮箱里
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