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发表于 2012-11-13 08:48:12
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1判断语句) ]! _9 h: z. W/ P0 o6 ^7 \
if <condition> then, H9 r1 B* D" B) `! z& o" p
<statement sequence1>;% x; D9 ]: J6 o* n0 M
elseif <condition> then7 Q8 Y" z- U( q7 x$ c# @
<statement sequence2>;
2 O3 q1 ^& c& ^' L4 R# A5 P4 T; h4 l else
& J: k7 r0 M, a6 Z <statement sequence3>;8 C4 \( g- i( N: K' ^( L1 X
end;
: |" F& w Y2 G) y$ ?% d如果分支比较多，用：
q: @8 v+ N/ C' N inspect <expression>: C* V. F2 Q9 Q3 o' G
when <constant_list> then, e+ c( @- d. V9 c9 g: U- l( j
<statement sequence1>;
! e! _1 n! K# C( q when <constant_list> then
4 h) S8 g: T+ v- z3 [0 ^ <statement sequence2>;
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else2 P2 |3 D/ u2 ^4 P0 O
<statement sequence3>;
6 S: w+ o8 R! }- f0 }$ X% T& Pend;
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5 ~: V- m$ V" k1 e7 O5 H2循环语句0 O2 E. z! j0 Q3 e, {& b( C
(1) from <statement sequence1>% @! T, n( ^7 d: O
until <condition> loop
: h. y) ]. D2 k <statement sequence2>;
* v: j% A- J5 J8 p end;( \' Z2 _( o( P2 l1 {
(2) while <condition> loop r$ F7 H4 {# f
<statement sequence1>;5 P) f. U. g1 S! B
end;
8 c# w g/ m6 \7 b3 Y& M. g (3) repeat 0 C1 B2 } i4 [2 ^. H* P* l- h
<statement sequence1>;- b8 l1 t, l* H+ B& |
until <condition>;
% k5 |6 y2 V9 [. x. l7 `2 V (4) for <condition> to <condition> loop. b" H0 t2 h/ a8 q2 H
<statement sequence1>;
; m' T0 ^) O2 @: g" f( @# _ next;
# t4 R; J3 T0 e1 T* L9 s3中断语句
5 z" L: [) R" D5 ?4 K waituntil <condition> prio <integer expression>;1 v( ~. s V1 m1 Q" T, A1 U
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以上为常用的函数！
5 b4 o( o4 j/ S1 h' W# L. U* }还有很多，如有需要我把资料发到你邮箱里 2 x N4 b1 I& F: L
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