|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
7 |/ u- C9 Z! n$ r4 j if <condition> then. Z" D) V$ g6 F. F
<statement sequence1>;
$ g3 k# e. ^9 u# H/ l( e# `" ~ elseif <condition> then
8 B5 ]) l4 h% t6 o <statement sequence2>;
9 J1 h4 h( v* n" ~' C( X4 x else ; K: A3 `& q7 x% {# j
<statement sequence3>;
0 ]. o" B* O5 H: I# c. p$ Y end;
6 Q/ R" [2 Z! I7 h: U如果分支比较多，用：
+ B+ r. Q( L/ J. g% G inspect <expression>
' l, C, U$ k7 G; s when <constant_list> then
H7 q3 g3 j8 l& J/ y9 e' q <statement sequence1>;
: M& \ W. x5 D when <constant_list> then3 F( N* B% U( S4 H
<statement sequence2>;
# l. X: M8 Q S ...
* @% J7 e( y1 t. Z/ n else- {0 F% p+ o( y7 g! U. Z4 u" n
<statement sequence3>;1 W/ w/ _8 |$ D- L+ V5 X
end;- `9 B. I4 f/ x4 o* i) Y$ i' s, T
# f3 d/ c9 ]# A% H- L
2循环语句
& b5 [/ R; i# c' { (1) from <statement sequence1>
6 C4 d$ t% k4 v4 ` x6 A5 ~ until <condition> loop
2 h: V2 Y/ W% w; v" g; f5 y <statement sequence2>;) t* \& P+ `! A: G2 e- Z8 k
end;
8 |/ f( i7 q/ ^* q- I! B (2) while <condition> loop2 l3 t# B0 t& K4 {$ n8 d' ~
<statement sequence1>;/ W2 ?+ O0 q* O
end;5 V& P: _& z/ z# Y2 l; B6 X* H3 H
(3) repeat
9 _2 s r0 n( e+ q <statement sequence1>;
8 a0 h) d5 s: v1 _3 z3 o7 S# n until <condition>;; l- \; a1 d, `( {+ r6 `+ _; X
(4) for <condition> to <condition> loop6 [2 ~5 S; ]* {4 ~
<statement sequence1>;7 f) f' G5 a+ l* V* ~; f# l1 |# t
next;
; ?0 \8 S3 o$ P W1 Z6 @! ?3中断语句
% a; P7 a; Z0 G$ ~' ?3 T/ |+ Y( O waituntil <condition> prio <integer expression>;
% p- i! Z% K, n
8 s- T0 Z2 g, I' T5 c a3 T } f* U7 X, z2 H6 P2 O$ `
以上为常用的函数！# w f" [3 O4 r
还有很多，如有需要我把资料发到你邮箱里 ' m" ]) v& c3 n3 b- B8 d$ d, H
" |' p9 X; n8 z- ?6 l. N; t, `) ^$ E$ |1 G; j0 H
1 x* @- m; A/ w
* o' M6 Z1 z! i! ]( d. Z& r3 S
, y3 _! y; Q* Z- ~% t, ^" u0 v) t+ T+ q% }. T3 m; z- I$ y
! B) S# \% { O' j8 e
8 l; Q4 @2 u1 k- o! `# a1 z
9 J9 h3 E- e4 v1 g R+ s5 k) x
5 Y/ Y, M7 \- W |
|
[复制链接]
