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发表于 2012-11-13 08:48:12
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1判断语句 Q8 K) L1 M) v* |1 }. d
if <condition> then. m. N- z6 @3 e( ^
<statement sequence1>;: @( e N3 l4 j% h1 O- }# Y
elseif <condition> then J3 j( k/ T4 O& P0 y& k, Q+ @
<statement sequence2>;/ t* s l/ M: W; p* i6 E5 l
else
$ z) i/ t! F- ?3 R9 ?* B <statement sequence3>;
/ r0 e. n! f3 k end;1 |, [; R; i6 |! K0 h( E
如果分支比较多，用：8 d7 B2 d9 ^: h" u6 `: j" F
inspect <expression>7 O7 V6 W8 B% o8 y5 D
when <constant_list> then+ k0 l# f1 H: r
<statement sequence1>;
" c9 Y) \3 _) |- O1 J* X when <constant_list> then3 ~8 R1 z- E, C% s
<statement sequence2>;
6 }. p }: m6 s4 U7 _0 } ...
* [. f" p: w/ x+ D; m; }5 B& w else
7 `) T$ }6 x# C% `+ A y& T% i1 x <statement sequence3>;0 T% l9 f; E6 U" J% x
end;
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2循环语句
5 J! ?4 E7 f; `/ O7 e5 P- N (1) from <statement sequence1>) F7 a$ `. y0 X/ n2 m+ k% L9 m
until <condition> loop
8 v7 Z1 ?1 X$ g% ] <statement sequence2>;
1 n6 q& K0 _, w: W/ p9 @ end;9 D! j; e' Y2 l) H, a
(2) while <condition> loop
& G( T( P9 K5 f$ Z1 E& [ <statement sequence1>;
& `2 \% z: v* ]1 v, u/ S! n end;
9 Z$ {7 |: C$ \$ r/ g5 q (3) repeat
{5 B/ s/ O. j l- |! ]4 D, P# `' r <statement sequence1>;
0 K" H4 @% W! S7 ^ until <condition>;
3 y6 w4 D% X# d9 [1 {% ~4 ` y- { (4) for <condition> to <condition> loop C) x7 x q g9 q
<statement sequence1>;3 S$ H) T$ F1 g
next;) S3 G6 Y! e( G6 p: L4 |3 t% t
3中断语句
* _" e% }4 ^) z8 i( c$ N" B waituntil <condition> prio <integer expression>;$ d% c/ R& t4 F2 ?
2 s3 W$ e8 _7 K& l8 R$ ?
) S3 R, m' F9 p; r% ]* Z' [以上为常用的函数！
& n! A7 U- g( b还有很多，如有需要我把资料发到你邮箱里 9 l4 P% g" g2 N$ v; J5 a/ d; |
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