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发表于 2012-11-13 08:48:12
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1判断语句: J. ~" V0 c! d6 g3 o$ V
if <condition> then/ \) Q E& H" P w% V+ y( \
<statement sequence1>;. [& I6 L/ j3 [# V k
elseif <condition> then
) D' U9 R+ o4 P/ K9 n9 r <statement sequence2>;
# l# C/ B4 {: E& q, F! { else
8 Q& {' {6 S S, B <statement sequence3>;
& f. ^& i- j7 o n, b& Q end;
& D- q/ @ h* z/ l F S如果分支比较多，用：
+ x0 Z9 q& @2 Q+ t inspect <expression>) U. Z, {# Q+ |* N
when <constant_list> then. z: G4 W" g% a) C4 y2 x
<statement sequence1>;6 A/ f4 n: k# z
when <constant_list> then6 K& W6 G7 ^$ ?& k6 H" s) b% w
<statement sequence2>;
! ]( f) ^* V* s* z; ~$ @% h" H5 m9 l ...
- C( B0 w* Q( G" o4 @. c) u else
" i+ Z y( \& c% X# G, W <statement sequence3>;. ^1 O, V k n. x: `3 `' j/ y
end;
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2循环语句5 G! {% B$ O! l, I. N" n
(1) from <statement sequence1>
, b0 E/ u: s. Z m9 G until <condition> loop
5 g" T' h6 X! U% B* g9 a <statement sequence2>;, p4 J! ]0 S; F+ M5 M' f9 c
end;$ T3 e# D3 g" e+ M& E8 j" \7 s; e3 G
(2) while <condition> loop7 r# D/ l9 {, {: b2 g/ f) i' X
<statement sequence1>;4 O5 p9 r2 h1 o7 N
end; G0 b1 {* f% l! m5 W( }1 U3 }. _
(3) repeat & p$ q; s$ G1 a
<statement sequence1>;( G5 K7 l8 F8 }7 K% s
until <condition>;
% s$ i% r6 q% f! s (4) for <condition> to <condition> loop
5 _) |/ N) a) D: P% ~; L( n! u1 h/ Y <statement sequence1>;& g* h# Y0 Q. w ^
next;
/ s0 l" J1 y$ t& Q3中断语句
: r1 e8 ?% E! A f$ I4 x! Z5 w& s( Q6 x waituntil <condition> prio <integer expression>;
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+ G5 d5 l0 s8 r3 q v% O以上为常用的函数！
) u, L7 V( }& w0 w& c还有很多，如有需要我把资料发到你邮箱里
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