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发表于 2012-11-13 08:48:12
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1判断语句$ W. M0 z' I5 x E. v# n
if <condition> then9 g5 r1 g9 u( d! ]- t) x4 [
<statement sequence1>;7 l+ T5 N0 K7 J/ Z1 r5 _9 G6 K# t6 O
elseif <condition> then; |& D8 S+ [9 S0 x% y; }# E
<statement sequence2>;8 C0 _3 X- @$ i( k/ d, c
else ! x$ _! A. v( l! |. Q, a; m
<statement sequence3>;
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如果分支比较多，用：+ b1 [3 U, ~2 @1 s7 {: d
inspect <expression>
G, n: Z7 Q# u when <constant_list> then$ c- J3 k/ z( x
<statement sequence1>;1 C6 O4 G/ w- c9 i3 n% b- |; e5 f) W: x
when <constant_list> then
; N# x8 ~, H. [5 I6 v4 u <statement sequence2>;
2 F* P+ c3 j: h ...
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<statement sequence3>;
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(1) from <statement sequence1>
! d5 P, f6 x% z% U4 N' q. y until <condition> loop
. v2 h! L; E: K9 `, w7 D <statement sequence2>;
5 ]8 W' A+ g9 i! e6 o end;
/ U- B' |$ n2 T* B! N- S& u7 l (2) while <condition> loop
5 l; t0 O0 [% G9 J# \ <statement sequence1>;
6 c4 r. c4 ~. Z% [# s end;$ m4 [8 G$ m: b) _
(3) repeat - `1 n3 U, h7 A4 j
<statement sequence1>;# u6 i- @, ^- N" ~& y
until <condition>;
3 U* ~! y( ~3 `2 y( i" E+ B (4) for <condition> to <condition> loop* x+ [+ W j H8 |0 b8 v
<statement sequence1>;8 O3 }# e& Y/ }9 H
next;
7 C3 @ M* ~2 B/ O" z# z1 A3中断语句' a. _. l, ?- P
waituntil <condition> prio <integer expression>;2 `0 `/ f' u7 t
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5 F1 ~4 C9 D2 v4 `9 i0 w/ Z以上为常用的函数！
, @7 P" Y, ?+ [! x( Q还有很多，如有需要我把资料发到你邮箱里 ' y$ a# @: A1 |' [! [9 v3 {! D
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