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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
7 P. J [; G" g5 \8 q' K3 L! R( ] if <condition> then F4 f0 a3 O" g- G1 k
<statement sequence1>;7 t2 _* D9 X: k. @1 t1 z. _% d
elseif <condition> then$ U( v9 M3 h& r% j% h4 b* g
<statement sequence2>;5 d1 d1 L/ O6 l+ V
else
8 N% q3 h' ]3 h <statement sequence3>;, ^8 N. ?6 {, Y) M8 p
end;3 ^/ A. W# t' {! S$ U" ?
如果分支比较多,用:5 y B. y' n0 M" L. w/ R
inspect <expression>( ?3 x( B( ^ c' ^& A; m
when <constant_list> then# f9 I3 \/ v. v4 C$ a1 @4 d: q$ d
<statement sequence1>;7 ^, }& K6 \) n" E
when <constant_list> then
, F1 h+ k% Z! t" j( A2 R <statement sequence2>;
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<statement sequence3>;/ ~& a2 x& t3 _
end;
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# v* w% v X+ c ^2循环语句
2 T* A* p0 N& p (1) from <statement sequence1>+ E- W3 _7 ?/ p
until <condition> loop3 O) Q- ^3 G. w* e1 b
<statement sequence2>;
_7 Y) ?) w; f7 C1 c end;- s0 I2 P* Y; z7 V4 W- E
(2) while <condition> loop
) E+ X" E% F g$ W, D0 r9 b <statement sequence1>;
% y0 w: Q8 e/ l. |' Q" u, ? end;
. }7 L4 O% `& E) h) U (3) repeat - z( ]" @3 O" z( ~1 R1 h, E- C
<statement sequence1>;5 z7 {! m. P" e+ Q% ]! R S
until <condition>;4 d( y+ e8 @# a. A' v
(4) for <condition> to <condition> loop
7 e w R D+ ?# J# X( G8 d <statement sequence1>;
2 G3 s/ o; x/ M. Y& O! h/ E next;
* R4 b$ g! @. n9 W; ?3中断语句
/ V1 q4 A8 E6 Q9 d' ^! N/ d waituntil <condition> prio <integer expression>;
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* O. r+ t8 k& b& c( N以上为常用的函数!$ C0 ]* m' U3 W; x1 A- w
还有很多,如有需要我把资料发到你邮箱里 3 {& |. D" U1 r1 P, K5 V
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