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发表于 2012-11-13 08:48:12
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1判断语句0 u3 e2 K0 I9 E' P$ `" V
if <condition> then
& S' p' v' s7 M <statement sequence1>;
' h8 m o, J" V, O+ k. d' Q) ` elseif <condition> then
/ S/ ?- k5 u8 O <statement sequence2>;
# q S& ?& K6 z$ V else ' j" F/ r( Z" f, M* I
<statement sequence3>;/ K! t# @& Y; m+ o
end;
, f" @0 w. z/ z- u+ t1 h) K如果分支比较多,用:" @/ [( a/ w/ S# f6 A
inspect <expression>+ c4 Y1 s8 o2 N% ~' [
when <constant_list> then
# ~! [" P% q. u9 x <statement sequence1>;
( X4 L/ F, `& C2 y7 Z$ W when <constant_list> then5 t% t8 E6 i& d) o
<statement sequence2>;
% q7 r3 s8 e8 n/ w) {# n0 t" V4 X ...
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<statement sequence3>;
- n: D& D7 C9 ~% M# gend;
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2循环语句
/ {. s1 |1 d4 w* g8 C# ~ (1) from <statement sequence1>
. W$ X+ a1 p/ f7 Q: H0 A until <condition> loop
( f+ ^: m* _, @- g <statement sequence2>;2 U8 a" T; O0 ^* H+ @0 W$ r
end;
: n/ H9 m5 z9 v1 d Z (2) while <condition> loop) ]$ h; d1 w0 q( g8 x% y
<statement sequence1>;
. T$ B1 j1 s: V$ g" e O end;3 j# T% W# y7 j0 @
(3) repeat ! D. Z# G! I- P- I( o" |
<statement sequence1>;
: J9 ^8 s' t9 p' n/ \5 y2 i, a& e$ ? until <condition>;+ k8 Z4 _; L( D U
(4) for <condition> to <condition> loop5 H" b% f& ~! ]- n9 _
<statement sequence1>;7 v: l8 p, \" w8 w* Q% ^& j2 I1 N2 b% n
next;3 V' G% w- q( G5 |* s$ ^
3中断语句
% {, i$ K" B6 x) ~% n4 w waituntil <condition> prio <integer expression>;
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6 ~" ~) J6 \( v- ]! v: `以上为常用的函数!$ {! A1 L9 o8 G/ m5 L: K: g1 V/ u- }2 Y
还有很多,如有需要我把资料发到你邮箱里
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