|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
$ q+ M' ]9 B9 p0 K if <condition> then- e5 }% u( L% F0 c7 d' B+ Z
<statement sequence1>;9 k) {3 q* \! K4 i- `' N
elseif <condition> then9 H# Y Z' G* v: V- f
<statement sequence2>;
+ L: S3 q1 K3 b0 F7 b else ; n1 [: q7 u/ t, J4 t
<statement sequence3>;! |5 d8 z# y# {; u. m0 q
end;
. E: B6 F R& E! n4 K( U* O3 ^如果分支比较多,用:( q: w3 m8 j( S- i
inspect <expression>
( v( g B+ U' O9 Q/ G, C when <constant_list> then. f% y2 I; r) y# l; [$ f
<statement sequence1>;1 R- K2 _7 w$ D
when <constant_list> then
% S& N9 S% q: Y( F5 ~& f <statement sequence2>;! |/ s2 U! t; ?- s6 {
...
+ l) M5 h, D8 \ |6 w2 a/ S else
l0 g9 k, C0 x- e: n* s! e <statement sequence3>;# l+ r1 E5 p# o0 H
end;) Q- a+ `' w; y* q
8 \. Y, f4 b/ X5 q$ j! f( x l( i+ i3 J2循环语句
/ }2 Y) |: W* G5 j$ V8 s" u (1) from <statement sequence1>
/ Y0 ?7 o: O* K/ k until <condition> loop
/ a' a0 h8 o, h0 Q- \ <statement sequence2>;
) V" D W+ N) M/ L, C& L I' A$ f, e end;5 n1 D' a' D/ L; T
(2) while <condition> loop
7 ~3 X+ s+ u2 F' |$ a <statement sequence1>;# U/ y% I* X$ C6 z% E# H
end;
4 Z n" ~. |: y$ [# v, x' Z0 h6 D (3) repeat & |& z9 q+ Z0 H0 B L" h. U
<statement sequence1>;; D! l" d9 b, U% W! i' C
until <condition>;( ]0 C6 `" @ B' a
(4) for <condition> to <condition> loop) h& J t1 ?& x- O
<statement sequence1>;
: N. S% x: i% R1 M& t next; `2 w6 P" p. R; T( _" Q! a
3中断语句
* T$ P5 n' M ]3 ? P5 X% }$ P; g waituntil <condition> prio <integer expression>;
, T- R- \) ~6 d. x- M
/ k( M* \. Y$ m- t8 I4 c6 E2 Y7 P: V5 d. s7 q
以上为常用的函数!6 N/ j4 d, c* h9 Z* I6 D
还有很多,如有需要我把资料发到你邮箱里 ! A5 t% [, N5 ~- G# s
: j8 \' L2 m* H5 N5 i
% a7 m9 u4 V4 b$ v, O
* s `( Z0 ^, i6 B. o
" F1 `( O, e8 W9 t% \. H
8 k1 q- Y8 x+ X8 M4 }* V F
5 e8 |8 d) U6 ^" S" e* Y1 a3 a& F" h! `! h; S
! B C0 b: @0 y
$ n0 d& m) z0 ]( U% Y- r
+ O! r9 | E! T3 u- ? |
|