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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句4 \% |! D, V3 @6 l Q6 M
if <condition> then# ]) H1 ~+ ^ X. y# X5 L
<statement sequence1>;7 h$ b; n" _9 f. Y( \7 {4 H
elseif <condition> then4 Z) M; B( [4 y$ W0 P
<statement sequence2>;
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<statement sequence3>;* f" J! P' V' _# |' @( O# O
end;
0 f0 ]# k; }5 f1 v如果分支比较多，用：/ N$ l* U6 C* l+ k- l0 w
inspect <expression>2 b3 G2 z' x/ _/ s5 V( G) c9 q, }
when <constant_list> then7 z. y& t8 P3 A6 e
<statement sequence1>;
) v4 P# g! m2 G( V8 y7 k% K9 | when <constant_list> then4 N; S. n( z" h6 H! Q
<statement sequence2>;* H3 \" F- V. t0 t& t
...
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<statement sequence3>; Y1 A* _4 F% h5 R3 q' U
end;
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2循环语句
s [1 {3 w2 q! a' [3 q3 {8 ^: p2 m (1) from <statement sequence1>+ V2 O3 k6 e* h0 I2 u3 q
until <condition> loop) a& I# s/ d) L( c4 b
<statement sequence2>;
) R' H! V5 | w: S end;
5 {4 }2 b6 G( R ]; L$ O- F+ R+ i; ] (2) while <condition> loop
+ l% ?0 e7 {! m. P# j- j: i <statement sequence1>;1 T0 y9 @7 g2 I: s' B. N" B
end;
& Z9 \: b0 P- x. o6 u1 } (3) repeat
2 g/ y: c" |% L0 g8 y4 F <statement sequence1>;# K' K5 b( X; k) ]9 C. P5 p) [
until <condition>;+ q% Y( c% x3 j; S& C" K2 n
(4) for <condition> to <condition> loop
, d* r! l) B# {! r <statement sequence1>;. P2 V; n3 @2 i# k/ M6 k2 t
next;
" k7 l# E3 P4 [; j; H$ g. J. v5 ~3中断语句& x+ k' h |$ Z1 J3 Y. C/ S2 t; Z
waituntil <condition> prio <integer expression>;- Y: F! G( v5 D
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以上为常用的函数！
: S Y; }: N9 c: i+ M; ^还有很多，如有需要我把资料发到你邮箱里 + Y. I1 Q0 E3 p: l; o- s
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