|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句 v% R' ?( Y! W
if <condition> then
9 k7 p- s& C N <statement sequence1>;
) m4 ]9 r: z& m0 T elseif <condition> then, q; J6 E$ n9 i# w1 j- @8 A2 k: c
<statement sequence2>;
4 r7 X' d/ I3 I5 f2 H else
6 E6 H- V A6 j1 y" j) G2 P9 _ <statement sequence3>;
6 ]' [9 t! q$ Q; Q" v end;9 [' @: e `$ c* A, ? F
如果分支比较多，用：
: n J' |: ?" a' `* ^. `" |( @ inspect <expression>2 j+ t4 L7 z; q3 D3 e7 o' q
when <constant_list> then# j6 b- V, c' h
<statement sequence1>;
" s3 b7 c" q# e/ Y8 E9 j2 [ when <constant_list> then
8 S6 x, a M, H9 H l <statement sequence2>;
8 ^( P# S O, v P$ R ...
, F& z7 L5 P* \6 U3 U( [ else$ C, |" V2 l9 q7 e# ~% i
<statement sequence3>;
; e( G7 _, u1 }% U# p0 U4 u( Pend;: u( i8 D2 q1 k, d: |8 X
8 v$ B7 G5 b& ]* P- h+ g
2循环语句
4 d: i1 ~3 ], o s (1) from <statement sequence1>9 {: v* d1 V3 q' d" l# p$ N
until <condition> loop! f5 L. d. W1 ~ O0 O+ G
<statement sequence2>;* l0 N0 U8 z) j+ t& s0 }) o
end;
# ~+ h& O/ l; |/ D9 Z (2) while <condition> loop, d" B! u' Q) r8 b
<statement sequence1>;
8 r4 |+ Z% Y( j4 @6 q end;% U: Z0 y2 B" R
(3) repeat ' e# I' c) }! u# h: A5 Z' r* U
<statement sequence1>;! e5 g3 f% B% j
until <condition>;3 z2 H* p7 p+ b, T% l6 G) `0 _ Q. n
(4) for <condition> to <condition> loop8 z6 P* F( x( `3 r8 s. s
<statement sequence1>;
1 L% Y( M0 F+ \1 m$ y/ n- g next;
k% g! y- ~" g5 O3中断语句6 m/ h8 `% d8 s" i$ L/ O
waituntil <condition> prio <integer expression>;
l) D/ p) x" I: ^6 c- B, c g/ K" _, }$ R8 x
1 v4 q# h6 C a! q. Y- o+ M+ n) {以上为常用的函数！/ r9 m2 f- x* @( R; }8 F/ X1 U
还有很多，如有需要我把资料发到你邮箱里 ' m! s+ u! P& e) ` z$ `
# z2 T/ f4 [! j) G G' W4 R5 ?$ S h
6 b# g) N- r% v+ L6 Y$ I9 H, k& q' ?! {" v3 D" y/ a: U8 [0 E
- [: h$ h$ s# [( j6 ]0 ?9 Y, n/ \$ N
- }6 d: p9 {: _4 W; Q
+ k2 t' R/ y! H+ K. \, g2 b1 i' j
; l2 p1 v- ^# C) l% A5 Q" H& w. l/ y* c! G) w2 G& M2 ~
( o5 m& E4 E; n. B/ l- f. M |
|
[复制链接]
