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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 o6 @/ }7 r) o, g" [4 k if <condition> then
8 H2 M8 t6 ~5 s; Y- c <statement sequence1>;
8 o% n1 S1 y2 y5 j8 t9 S4 q' n2 G elseif <condition> then
! K! V3 L/ m/ t% @ <statement sequence2>;# d8 C. L8 H# w; a
else : C1 w* r. C* F. R: o
<statement sequence3>;! O$ h! r* W5 T0 W3 m
end;$ d8 k4 d9 N0 o8 E% y6 c6 N4 f
如果分支比较多，用：! X- ?& r0 `2 J; t0 x4 h
inspect <expression>
% B7 a- N/ R# L. `2 }9 o when <constant_list> then% p' n3 I" G R$ ?+ B
<statement sequence1>;2 c, S' z$ ~( z
when <constant_list> then2 o {4 |: c+ L4 K7 D7 b
<statement sequence2>;
7 t/ [ A5 @ g, V) q ...
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<statement sequence3>;$ ~" z/ `/ m$ g
end;& E S+ T. {) _) b; U3 I* r
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2循环语句$ g6 _, M5 U- G
(1) from <statement sequence1>0 J$ J3 y9 h3 [
until <condition> loop
6 ~) J! _9 D2 z/ R3 T' c3 S* k <statement sequence2>;' O) Z. q7 A) E/ T' P
end;
! }" b2 K9 v( }- I) d (2) while <condition> loop
: K4 `8 q8 d; D: w( i <statement sequence1>;
1 l+ G' a: b6 ]; u9 y8 `3 n end;
7 Z v$ [* g+ S( I1 Z' P (3) repeat % [/ X0 N6 j+ y0 G7 \8 \: e! W) Z( j
<statement sequence1>;4 M% F8 x- \7 y$ r/ j! i8 L! D
until <condition>;8 m7 ^# T: M a9 H7 }) n" f
(4) for <condition> to <condition> loop6 X" G' I$ S5 B
<statement sequence1>;1 T. R6 Y3 L7 s/ l
next;
! W; r8 U/ `" F5 w1 [5 p3中断语句( O/ `- q4 ] j: i0 Q i P" T
waituntil <condition> prio <integer expression>;- X# L6 h/ E- F; v
% j& G% F a1 i& u! d3 E5 G- i
# ~" S2 @/ E/ d6 T2 G& j+ {' G9 U以上为常用的函数！% D, ]1 m0 J/ t0 F3 n2 w+ J2 ^
还有很多，如有需要我把资料发到你邮箱里 ! ~& d# R5 ~' h. r( G0 [6 L! o
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