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发表于 2012-11-13 08:48:12
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1判断语句9 s3 H# J% m4 T: ~
if <condition> then
; g/ |$ [7 b3 {& G3 e. x <statement sequence1>;2 ?7 W2 B# t7 [- f- {
elseif <condition> then$ p9 D" L, t U3 _; c9 G
<statement sequence2>;, \# t" ^9 o! ]- f$ Q+ m8 \
else
9 W( \, p! g* F: E! W! T% k2 | <statement sequence3>;( ^2 h2 P! n6 E |. i& }" i4 f5 r
end;) A( A4 y8 T" J) V3 _+ w
如果分支比较多，用：, B4 c5 g7 ?7 T5 x* w$ S i
inspect <expression>
6 u7 a; C* s9 k) \7 E9 N when <constant_list> then
% H2 _) a4 g. v# ^! y: X6 W0 ~1 v: X <statement sequence1>;
) G. I, r0 r% `2 Z when <constant_list> then5 a9 Q8 `2 o/ g
<statement sequence2>;+ L& i! n+ Z8 }" R: v* J
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else
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end;+ P! _) s& m, v' Q5 y7 C7 b
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2循环语句! [7 r, r8 \4 B$ u8 g- C
(1) from <statement sequence1>" A# f5 o# b F# h0 ^" m
until <condition> loop
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(2) while <condition> loop. I* n! h0 J1 |, h: u9 q
<statement sequence1>;5 O; n! x& f3 `4 Z6 T% }
end;
: y- d$ }" J; ~, G& q$ S (3) repeat ! f; h) Q3 s8 t( D& L
<statement sequence1>;6 m7 K- u4 N- u w
until <condition>;7 A6 t, [! } `. \
(4) for <condition> to <condition> loop
+ R7 ?' J+ } V4 a, u, W <statement sequence1>;
: u# s: J0 A( {6 s next;
1 x* G" r2 e- p3中断语句6 z6 A/ [" H+ [( a7 Y
waituntil <condition> prio <integer expression>;, G; y1 R1 y/ |# k6 Q
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8 b) r" G3 F( G X/ M' q以上为常用的函数！! \9 c' o" C( ?; V
还有很多，如有需要我把资料发到你邮箱里
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