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发表于 2012-11-13 08:48:12
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1判断语句
# n2 x6 _0 O, k( y if <condition> then5 k- y$ D# R5 O" M( e9 r
<statement sequence1>;' v5 f4 m ~) P% L
elseif <condition> then
& _; B7 L5 J- C <statement sequence2>;
w1 V; u; U) W else 2 z! F8 ~9 K& e2 o
<statement sequence3>;
* j) E5 x! ^7 A# X2 a end;
, O" ]( y* f) u9 y* ^- p如果分支比较多，用：8 J5 Z# l# R& [ [% c+ o
inspect <expression>
( F+ ]+ ? \* B( q- ^ when <constant_list> then
% A }3 l& s+ R# {% q& e <statement sequence1>;1 F+ S0 z( y0 z4 n; D' G3 ] r
when <constant_list> then
4 D$ ]) ?$ g2 K4 H <statement sequence2>;$ K# R# a- C) i4 t& e- n$ U
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else# h y/ [; u& [3 r+ j( L2 r
<statement sequence3>;
8 o: X# g' O; o* [end;* I! q n$ g3 W& r
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2循环语句. _- o$ Q6 V ]2 U
(1) from <statement sequence1>5 s% N8 t+ z3 N( t2 \
until <condition> loop2 K+ H) l- p/ f, c
<statement sequence2>;
: R3 d* [ s4 E/ y4 `* I/ x end;
$ g" n' e9 g# F3 j% \1 g, j (2) while <condition> loop
. y9 O* y; G/ ?7 y9 }8 I! ? <statement sequence1>;, l7 P. F" f- `3 a( U$ x2 l: ]
end;
8 h% @; z" h+ W (3) repeat
4 ~$ k A0 X8 P+ U <statement sequence1>;- Q" ]0 v, |+ W4 [* `
until <condition>;6 E9 N [" o/ K
(4) for <condition> to <condition> loop
/ Q" n/ a% e3 `8 m6 T/ \% w <statement sequence1>;( H; G- Q$ S; n) R J
next; N( I- x) g' n6 a6 I
3中断语句9 T! V# \5 d; l* L4 n
waituntil <condition> prio <integer expression>;
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以上为常用的函数！: w+ ?: |2 F& ?7 c$ y3 i! @
还有很多，如有需要我把资料发到你邮箱里 2 o+ H& Y$ v" l! x V2 R
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