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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
( g, ?* h$ k8 K7 E if <condition> then
, {) r+ Y* M: @2 v7 j8 H+ p <statement sequence1>;
9 l' @8 U8 A' V! K* ]8 b( g elseif <condition> then3 Y7 y. U6 c9 D0 e: x7 d, C% C. W
<statement sequence2>;4 r; @$ C4 l# S/ `* `
else
3 E5 x) I/ I0 v" p% L <statement sequence3>;+ G/ v. D6 F) S
end;9 w; N/ {9 N8 [, y# p. j
如果分支比较多，用：
6 u; Y, j. r6 u6 X% U+ ` inspect <expression>8 ^3 ~ W q! }0 R. |
when <constant_list> then n! A2 `" \6 y& z0 F. r x! z
<statement sequence1>;1 L3 S* _3 V6 _( m
when <constant_list> then
7 Z A. }9 j4 s% W <statement sequence2>;2 g0 a q* P6 _
...& a5 F& r5 \! S; t( Q( R ]; j
else5 _7 c+ q9 | t5 A- c$ {
<statement sequence3>;
! k4 i4 T0 f5 h$ qend;8 P# P/ E+ k9 c/ X2 F
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2循环语句
! u4 x" i2 }3 z4 M (1) from <statement sequence1>
, P6 C9 p W. P# ~; K% s3 e+ _! I6 Z until <condition> loop
" E( l9 C$ o. Y. c# z5 G" j <statement sequence2>;/ p- k2 _ g& ^& n% E) m: A
end;" w* @ d, Q9 ~, L
(2) while <condition> loop
5 O9 [- u# i# q# W. k <statement sequence1>;
, p( O. t) ?5 y end;
3 F6 G. V1 p$ {3 g) p3 k: j (3) repeat 9 J4 H0 \5 A- D3 D- b; ~
<statement sequence1>;6 Y' _* }5 F; }" ^. k3 N, Q) B0 Q
until <condition>;0 `. ]- `3 H$ }/ @: b
(4) for <condition> to <condition> loop9 ^3 c; |% |; e; a* A1 `( `
<statement sequence1>;
! f" k0 i# e* J9 U next;
/ g; i" e. W N: W' e# @3中断语句
. T4 L0 L! y; v9 O$ |! ~ waituntil <condition> prio <integer expression>;/ U2 B1 H2 }# i" R) `3 e# @
5 f' C1 }- G, \4 u7 c3 |% W; n$ I2 Y
以上为常用的函数！
" O: o$ ]' O4 }4 B/ r3 a5 n还有很多，如有需要我把资料发到你邮箱里 2 W* \& _. E [* x5 @. o
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