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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
" E/ R y8 F$ V if <condition> then5 {# o5 h. h( o4 P7 D3 E; R
<statement sequence1>;
8 M( y5 f- N5 Y# ?3 g elseif <condition> then, ~1 H `0 g+ a) Z1 s6 K4 a9 ]9 J# {
<statement sequence2>;- F6 H' x, Z. G, d
else
, d+ Z6 O( q$ B T <statement sequence3>;% b1 S& I1 L3 ` L& P% W
end;
9 P& l4 h, J+ @5 C( i如果分支比较多，用：
6 |+ y, k; ~/ F! g inspect <expression>. o+ s( D4 U" }0 C0 s+ b" V
when <constant_list> then
/ s( {8 v/ \( G& w2 Z7 s <statement sequence1>;
, t7 O" r6 i: E- t7 U Q5 H8 _! ` when <constant_list> then% d8 n- m6 S/ V8 h
<statement sequence2>;
. c( C1 n+ |- @+ ~" x& N ...
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<statement sequence3>;
6 M# m9 _& i" nend;
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2循环语句
! F* g [& A, A1 M (1) from <statement sequence1>
7 L* R/ F) U2 O R" Q/ b until <condition> loop, R. M2 h) w( G
<statement sequence2>;
; Z+ n; P' }% w) L. d6 @* b" _ end;
- a' A7 A# E$ o1 X, V (2) while <condition> loop- P$ Y: p5 R8 u
<statement sequence1>;, F& ?. N, F( ^7 B: u
end;8 x6 b6 @0 }2 l. A* h8 z
(3) repeat
6 y, r* D7 m* v; E# x0 z/ g0 ? <statement sequence1>;
4 Q7 } e- ?) ?8 U# e2 V until <condition>;
; C( [' E# h( f# G (4) for <condition> to <condition> loop
6 z" `3 e; J) F4 X <statement sequence1>;9 H2 J4 R k5 @
next;% u4 U, h4 p. ]8 m7 c$ P
3中断语句! M8 m" L6 @3 j/ s) N
waituntil <condition> prio <integer expression>;
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& }9 C; d2 O' _; s& b! }. z以上为常用的函数！
$ L6 t6 S. K& b2 p1 x还有很多，如有需要我把资料发到你邮箱里 * x9 b' J/ L% C7 C, L1 t2 i
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