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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! A j/ J( A* Q% V
if <condition> then
( M y. `% u8 K5 I: C <statement sequence1>; w! p0 |8 h1 I( e. o4 F
elseif <condition> then
" k1 f' {+ ?% p$ m: G <statement sequence2>;
$ E" r4 v+ _' n; Q6 R else
H! [% h0 V9 h' N+ ?5 y <statement sequence3>;
: O9 o( z+ r. o! } end;) _: V/ R$ f) @: u3 S* b
如果分支比较多，用：% i1 M5 G1 E. D$ V
inspect <expression>
" {( G" _( R) ~& P/ O% ^ when <constant_list> then5 h0 \; q, B/ x, Z; t @
<statement sequence1>;
( c/ c9 b. R6 r when <constant_list> then, S& n- H) B6 w/ H
<statement sequence2>;
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else
4 V. }5 s, t8 U <statement sequence3>;- B' i5 L0 u. H0 a) T0 [4 @
end;( u2 s8 j' O' ]- J& t4 e# p
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2循环语句
9 h* l( \( s7 m" t d, r7 V (1) from <statement sequence1>
9 }! ~3 n- v1 F E& h- {6 C until <condition> loop
. Q& o& c4 e1 x <statement sequence2>;
8 A- T* B1 K' C, Y- R( Y, n0 C end;0 e- i- @4 I" s
(2) while <condition> loop
! |5 f7 _" I$ Y7 j <statement sequence1>;$ e* k3 Q7 q* m* f
end;, |( R- H: j) Z$ s: y
(3) repeat & |. o% d6 J1 s# x: j+ t- I
<statement sequence1>;0 S" ^+ j) c9 O( h
until <condition>;7 Q( J8 K% h% q+ X
(4) for <condition> to <condition> loop
5 j) u8 J4 o; k6 a2 }* b$ s <statement sequence1>;
! M6 o0 k/ _: s6 a next;
1 K% M, p+ X" I3中断语句
; T8 g4 j) J0 ?* Y" a waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! M- k2 A( Q( ^8 f2 ^还有很多，如有需要我把资料发到你邮箱里 , P% I9 \6 W. A) l" ^+ M/ g4 ?* Y
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