|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
# V) Y7 S W. {' K" [/ e' L if <condition> then
( }4 \" s2 K7 v/ l& S8 a <statement sequence1>;: m" U5 @5 V' a: W- ~
elseif <condition> then
" s2 U( F, ]5 Z4 }% `# Z <statement sequence2>;2 ]! W4 R3 p+ S& U7 Z* f; ~
else
% e# o" g6 J- Z# h* Z <statement sequence3>;; Q/ W7 F+ {$ W5 i }$ A
end;. _2 L( _5 z+ J4 w0 _4 [
如果分支比较多，用：
4 V4 I4 M4 q1 B inspect <expression>
/ x$ C/ U' ~) I |; u, O when <constant_list> then; Q4 K3 ~9 q2 V: a$ a
<statement sequence1>;
# @9 \$ j/ V. d+ I" n when <constant_list> then! i7 d" k+ N- Z# | ~) [; g" j
<statement sequence2>;% p: |: N$ O% G6 ]% m% D+ M
...
+ H2 v% U: G) q" \ else% [# e( J8 N/ G; `: J( j- T3 \/ s
<statement sequence3>;
; P7 W6 A1 _/ kend;( @* C0 W. g' J% M4 p) H
. V: B# I% A% |2 C; Q
2循环语句# u6 o5 M3 @6 j/ p* @
(1) from <statement sequence1>
4 p3 X% ]- F7 Y1 n" M until <condition> loop
7 C& H1 t' @9 H* {8 r* F. r0 f <statement sequence2>;1 S* n+ c0 ], K9 j9 d- ~7 D8 q
end;9 }* J. n! j. i2 X" j! X, S# e: o
(2) while <condition> loop
E5 k7 x8 X3 [$ M7 V8 D/ l <statement sequence1>;
: v9 V$ }! {" l+ d+ d, f* k: ^1 o5 p end;* @ M8 a/ P7 J5 j
(3) repeat ; u( `4 m% H* ~! L
<statement sequence1>;5 r4 \; M% N- _0 B" x/ N7 m, [
until <condition>;9 o l: j# N1 H0 ~
(4) for <condition> to <condition> loop$ s* I: Y* O( H x4 S
<statement sequence1>;
$ i! V, O1 ~ M- H3 d next;
/ ~7 p& J* s$ J, Y3中断语句. c* y2 G3 ^$ V; H7 d" s
waituntil <condition> prio <integer expression>;
4 e( i' |% ^& m3 f/ Q1 E+ \2 t2 e+ n6 M" l) r0 `( h
^) f6 m7 l/ w
以上为常用的函数！5 U8 H2 K; f0 B6 h# G2 r' j
还有很多，如有需要我把资料发到你邮箱里 " z8 J! e8 V& t7 g# w- C8 d4 v) k
6 z8 V" ~* x! Z/ O ^2 ~1 C4 v* X
9 p' z+ s+ P; Q3 j4 P
& d' r) F2 _- t! p# j1 J ; x1 f; A" x5 B. [3 a7 e
6 m# C/ L, u: M, ?+ u
4 r1 B7 [# g5 T$ v0 f+ u0 ]
4 m/ _3 p1 I2 u9 b9 L$ |/ t
# l3 C/ u0 `: p5 P; y
- g: E2 [( [2 v4 c+ K
% \) r |7 y3 r( h |
|
[复制链接]
