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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% T* M8 _0 a& l; s d
if <condition> then) ^) A, b4 o0 i+ J" @( C) d8 s0 N
<statement sequence1>;7 C, h4 w& H& z, ~% P/ J5 ~! B( x& s
elseif <condition> then
; ]( W3 h. E% H1 Z0 X U <statement sequence2>;
5 J- X: Z0 Q4 V7 D else * }* Z! e, J# F; t/ }& V$ _
<statement sequence3>;% v; d6 U* i, N# A/ b6 r+ G, O
end;
, v: _$ d3 y; B! `如果分支比较多，用：/ Q, }! k; K, n- B* t& ?' n
inspect <expression>3 n/ A( Y7 T: u' }4 u. U6 ]5 J
when <constant_list> then
0 K2 B6 ~4 p9 }4 E <statement sequence1>;( Y! z8 k3 w" u: W
when <constant_list> then6 Z4 p( w4 V- E" _8 O
<statement sequence2>;2 V4 C* y. g, S
.... i9 Y4 P2 [) u& C
else, }+ Z% y$ M! \) }* B# R7 l
<statement sequence3>;
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1 a# k6 C7 v. N6 a2循环语句
. G% b% A( `5 @9 }1 p (1) from <statement sequence1>
. N% y% ?7 @6 \$ J ]6 h until <condition> loop! X) n4 o# M. |9 k
<statement sequence2>;7 w$ ~7 q9 M, C; e! v0 `6 y$ @ T
end; y! ^3 p9 {3 B9 [5 V
(2) while <condition> loop, [( Z. O3 Y$ o# K7 B7 T3 a
<statement sequence1>;
8 A/ c! ^/ i- |. l% i end;! h5 X' g) X0 K2 a, I
(3) repeat
) _! r% m$ G: ]" ] Q5 L" k <statement sequence1>;+ | A3 r0 w; |; m
until <condition>;
0 h9 c) d' e2 v, D, c' t4 M0 N0 W& o (4) for <condition> to <condition> loop+ M" S8 E3 S0 W2 F4 Z
<statement sequence1>;! D# [( Y1 O; G3 b" |# Z
next;! i1 }+ e4 u5 ]. t
3中断语句! a5 e# q1 w: C1 |4 K
waituntil <condition> prio <integer expression>;
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以上为常用的函数！* L# _7 z9 S5 K l! V/ T
还有很多，如有需要我把资料发到你邮箱里 ( n2 Y! D3 W7 H- T: }
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