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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
" i- h$ V# x0 J7 D9 [; E if <condition> then
" o+ L/ X% \& W+ } <statement sequence1>;9 \' E8 n1 I7 f( q3 K
elseif <condition> then' t/ `8 x$ T0 s8 m* C; q+ U$ [; g
<statement sequence2>;
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<statement sequence3>;
; X/ K( h( k2 d( v8 y end;
* ~/ |+ A) l# g' Y如果分支比较多,用:! u2 |' e# j( l% {) r6 y5 j
inspect <expression>
* ]! R2 A& Q3 W/ U. |! o" k3 ] when <constant_list> then
. P6 H+ |( r. j# R' t* s+ C& K <statement sequence1>;
4 n2 p" x' O, e# b when <constant_list> then
" |; x9 Q9 V. x6 f6 f( q, h <statement sequence2>;
$ n* ]0 F. }0 z( x6 X7 x2 O4 U. | ...
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<statement sequence3>;$ X: O w% r: r1 ^4 E+ ~- R
end;) U$ N5 D8 F# U1 }# e
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2循环语句
7 k7 H% B7 k6 y- X; b6 X (1) from <statement sequence1>4 B) d* X) y3 W9 F& v
until <condition> loop
" Z: h8 r2 O; M- n% Z" v <statement sequence2>;
( O" }" b9 L9 o( N end;! c8 @1 E! N( I1 O6 n, j2 k
(2) while <condition> loop o8 g/ F: n: p
<statement sequence1>;
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(3) repeat ) o7 k+ y$ k4 g" r- ]
<statement sequence1>;8 E( Y6 `% ~" N1 n0 b$ l& T# B/ K
until <condition>;
3 ?# j1 o. r; P, |# y (4) for <condition> to <condition> loop: E- H& C) p4 L' p8 `: p2 Y3 W# p
<statement sequence1>;0 o! J1 U' d; L6 O
next;
% Y1 B9 D( n7 ~/ y8 ]3中断语句
' a/ Y7 P( K$ ?( M' E waituntil <condition> prio <integer expression>;
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$ j& D2 f7 Q6 i8 s, n1 b6 A7 V% s以上为常用的函数!/ a# r+ j6 |" l2 z
还有很多,如有需要我把资料发到你邮箱里
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