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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
/ W& p$ d# g O; x. d if <condition> then
9 Z4 ^+ n# Z. P <statement sequence1>;
; i9 g8 ^) M+ b3 y* { elseif <condition> then3 |8 o P% F; F
<statement sequence2>;
& Q$ s$ G6 T6 s) x* q2 ] else ; u) A* r% O2 y' { s: ^' @
<statement sequence3>;8 l/ r) ~. R9 z2 W
end;: U9 s* D* e c. f) N/ p9 c: o
如果分支比较多,用:
M0 d) L4 X. @! T inspect <expression>7 Q3 E$ z& b$ W
when <constant_list> then
( u$ ?# G6 B+ z( r <statement sequence1>;
& f( ?9 X2 V0 @& f) i! Z( G when <constant_list> then
5 P4 J) {6 Q7 z/ |2 m1 g <statement sequence2>;
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else
. |2 R4 [3 m! }% z; y7 j$ ^+ i <statement sequence3>;
' I' ^4 [% l8 t: m- c, l* w% d4 ~end;3 q# B3 g1 v5 l X. f! F% m/ K
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2循环语句
9 h3 ~3 M" E. D; u4 R; }! C (1) from <statement sequence1>
9 i1 V9 ^( R; I0 J# r1 U% s% g until <condition> loop
$ X. g5 T7 @4 \5 u" n <statement sequence2>;4 c: Q3 |' `/ h) r& F; J: C
end;
: ?) f4 [+ y! S! H (2) while <condition> loop4 _- C1 y. v6 z5 S1 D/ z+ E% v
<statement sequence1>;
1 x7 a5 X+ K/ p* T, N end;- t4 `/ F) V" T1 v) }
(3) repeat E' X7 ~( Q( K
<statement sequence1>;5 r2 X% G" j P, M6 a% R
until <condition>;
! [9 C2 g2 J% u1 I6 t (4) for <condition> to <condition> loop' s3 K# i8 R% x" u, S' G5 w
<statement sequence1>;
6 n/ t) E* J3 u3 ]8 h' u: J6 Q next;1 N2 ~% Y0 G' k6 t7 L8 p
3中断语句1 W9 j/ Q% m* P7 `
waituntil <condition> prio <integer expression>;. S7 Y0 T* h. w6 i
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以上为常用的函数!- R2 l" R8 ?" r9 Q' o P2 j5 `- ?
还有很多,如有需要我把资料发到你邮箱里
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