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发表于 2012-11-13 08:48:12
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1判断语句) ?4 h& C& q+ T; U
if <condition> then; O/ G6 M1 }; s/ e6 N2 o: p6 n
<statement sequence1>;9 L; t2 y5 Y& v( @. w' H! b
elseif <condition> then
' p. _2 p* w' W, ~ <statement sequence2>;
0 a8 L q' t* z+ v' [- L else
: ?6 T: ?$ `& N! x <statement sequence3>;
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如果分支比较多，用：
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when <constant_list> then* E. U& H! Q+ O& n$ y0 M/ i9 i1 U+ B
<statement sequence1>;
/ v) c3 _$ a, t( [. x/ F8 J when <constant_list> then* E" [ k# {) M# u. G
<statement sequence2>;/ Z8 Y# [1 b/ T \+ X" S1 h
...
) y2 f0 F' c4 W, ?! S% L else
: P6 G# L: K+ m8 M& k <statement sequence3>;' ^% u m; N/ S% l0 f7 E! H
end;
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2循环语句% I2 f p- t$ G( R; e
(1) from <statement sequence1>
9 ?" b8 y- Q5 ]; w until <condition> loop
" d( D! J) _' A4 j- u <statement sequence2>;- \/ w" {' a) z2 S5 c$ x! H6 M
end;4 Z s6 E# n, c% z6 U
(2) while <condition> loop
7 R- V' m8 H$ _2 p* X7 X; @ <statement sequence1>;0 O& x7 j1 H; N# J
end;/ o/ L* g" \) T8 L
(3) repeat
2 F6 w, |6 C3 B9 K. Q: O* d <statement sequence1>;
& t6 J! x# N- h+ g until <condition>;
9 q# g- ^. c2 u- u3 R4 m( z, V (4) for <condition> to <condition> loop
- e# g8 x* c/ T( O. w! a <statement sequence1>;& F I+ N a, L% L, T3 i
next;" k+ z, u; `" v. K. E
3中断语句" r5 W% ]' J- S" Z% D8 W% u
waituntil <condition> prio <integer expression>;5 u& Y6 [0 ?3 I- X" w+ c( v
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以上为常用的函数！+ i/ z$ M. J9 G: M" L, M4 x* \
还有很多，如有需要我把资料发到你邮箱里 R- \: Z( t. T/ [+ u2 I
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