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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
- X% O& ]. E, E) K. l% p if <condition> then
5 s7 o% r* r/ h) Y <statement sequence1>;' h" R. ^5 P! D T5 o
elseif <condition> then. ?$ Z/ w9 v5 {1 I9 B1 a- p
<statement sequence2>;
- Z p, a4 S( J1 s else , \: h8 n0 s2 o1 j$ X$ z
<statement sequence3>;& d2 s3 S B9 M8 `
end;% R/ p; T0 ~+ A, A
如果分支比较多，用：
# ?; J9 v! Y* C+ E inspect <expression>7 f9 S2 a$ _: J5 ?+ {' k
when <constant_list> then
5 u8 M @" l% | <statement sequence1>;
* l: `7 d) ?5 m2 } when <constant_list> then" l: @! u7 P+ ~+ D) G. \& K3 A
<statement sequence2>;
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else
# d, ]6 T* E/ h" w% _& ?' ` a <statement sequence3>;
3 N) E: i, }/ N4 fend;
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2循环语句
! Y. M" {7 _8 G( P* |; N4 y R- ~ (1) from <statement sequence1>
' F4 n1 [. V3 w until <condition> loop
; T: Y' w. ]$ d& F$ b( y4 U <statement sequence2>;
1 h. u! C% l# ]! j end;
9 J8 M! d) K; e7 K6 o (2) while <condition> loop. S- o. e; ?1 d, U: ^4 L4 m
<statement sequence1>;; ^' V# B6 `6 I" v& C
end;, O, [* G2 l, B/ s6 v
(3) repeat
# _6 a3 W7 t* N) y <statement sequence1>;) {4 h7 Y4 @! x9 p
until <condition>;
& a, d* q' H% v5 ?4 T5 ~ (4) for <condition> to <condition> loop
' s i+ w* f5 w# M <statement sequence1>;
$ C7 {' ?$ G" d7 l, C4 F$ }$ @: Z next;
9 T! L5 |7 [9 ^! R0 n' k3 }9 o2 B: P3中断语句- U8 N& @6 A! I5 S; I- q
waituntil <condition> prio <integer expression>;, a) U; J& n( Y
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' Q: R- W& M w4 |- L以上为常用的函数！
, |( B6 A3 H8 f5 F3 F) T$ z" f/ h还有很多，如有需要我把资料发到你邮箱里 % a" v$ G( G: Z7 ?
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