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发表于 2012-11-13 08:48:12
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1判断语句
5 @$ V/ W; @) X3 }' h2 N5 O# j! C if <condition> then
" B6 s( X5 ?( K) w- ]2 E4 }" } <statement sequence1>;
4 J4 `1 f+ ]+ g& J* f. m elseif <condition> then2 x- Y( }! f/ N# g+ @. D0 r3 t
<statement sequence2>;
& f; ]% d) a! s else
; u/ R F6 W5 f- v <statement sequence3>;9 w: k7 ^3 ?4 Y7 @2 U4 R- t
end;5 D4 K! E% ~+ K2 V
如果分支比较多，用：
& ?* [5 i' y* ]1 m: o inspect <expression>
7 S& B+ v. |4 P. v1 q( p) L when <constant_list> then
" _, O5 a- F" l: L5 ` <statement sequence1>; R* E9 I; b- O. q" S* I4 h u
when <constant_list> then/ ~8 i3 H* S3 `. R P5 e8 X ~: A* ]2 A
<statement sequence2>;
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else
4 Q, F+ A: y( P <statement sequence3>;* L6 H, u7 Z. Q, d" H8 t
end;
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; G# w0 [( c N2 K0 `) x2循环语句4 s) ^) ?3 z+ p4 i' |3 C
(1) from <statement sequence1>
, Q5 G' F+ u, a! A until <condition> loop$ [3 r" |1 x% Q! \: ]" p* f
<statement sequence2>;" c/ J. }0 L% s5 H/ ]9 x
end;
0 B l2 `9 E& W4 X/ `6 {6 S, [, C; N (2) while <condition> loop
, x7 h) U9 K7 ^( ? <statement sequence1>;
|& N F3 @ g end;
. Y$ v5 |; I" x (3) repeat
4 H8 J0 O7 ~/ w$ m <statement sequence1>;
! f0 o8 a. I& A' `* Y until <condition>;
, i1 N+ p" b( @; P (4) for <condition> to <condition> loop, p, s$ N0 S0 f9 H1 Y5 ]: \2 _
<statement sequence1>;
* M; |5 K! j h% h* c4 M next;' S8 o5 U# A" G
3中断语句% B% y- w% `8 ]( H! T0 d
waituntil <condition> prio <integer expression>;2 H8 ^5 R6 U$ g/ E i. P
9 _' |& x6 j/ c' g) |4 V
, p) R: g* R. ?; W以上为常用的函数！9 y0 Z5 f; Z, Z) v5 B
还有很多，如有需要我把资料发到你邮箱里 E0 `. V' Y. Q
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