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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
; q9 T* ?% d3 D' |) A if <condition> then
5 E/ W/ l( J4 }3 k) t4 F <statement sequence1>;
W- c* g4 M) A3 x1 C$ X& Y elseif <condition> then
w% C3 M; }6 h! l4 O( B <statement sequence2>;. q. W b Q) ~4 g- J# v
else
5 Q- O8 U3 E$ w1 e0 } <statement sequence3>;
# G' q* U9 {6 S0 I/ K9 s% M0 T$ p' ^ end;) g$ G; \; O, z
如果分支比较多,用:
3 I& t$ m" O1 }; [ inspect <expression>
7 w( n, U" ~9 \& R( u& k4 H b$ O when <constant_list> then1 G7 k: A" M( a. A( `
<statement sequence1>;
% k4 @3 a. |# s when <constant_list> then
f! g. P o- z/ F; F <statement sequence2>;% U+ _" k Z, ^; k( K8 w& t
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else
$ E6 L! f, W9 X, G" v <statement sequence3>;
$ h) E2 _8 O. P8 s2 \; eend;
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2循环语句( ]6 x! s }' y) B, Z5 M9 e+ e
(1) from <statement sequence1>
; S) G4 R9 d% Z+ D- Q, _ until <condition> loop
6 B. t0 Q0 E9 ^; j <statement sequence2>;) u2 i; s9 O; b \- l3 A
end;, ?6 e8 c6 o# \$ {' z/ _6 o
(2) while <condition> loop* o+ d! W( N# M7 h) G
<statement sequence1>;# D4 t2 _( z2 i
end;3 Q3 F c, ?' ~6 D
(3) repeat , u7 F7 Q0 q1 x
<statement sequence1>;% ~/ l3 L: t2 L6 X1 [# @
until <condition>;2 k4 M" z$ N4 k \$ f
(4) for <condition> to <condition> loop
- Z, s4 u% Y% B" K+ k" r+ L7 L; a <statement sequence1>;! b% {1 \1 N# [5 @
next;6 g# ]( b& \. j! P' o# T* D- a
3中断语句
2 g" \- ]6 N/ r- K waituntil <condition> prio <integer expression>;- E+ @1 L8 u+ C
+ A/ K/ {: j' l0 f) v, \! |* V. t" S8 j, e# v3 V
以上为常用的函数!
+ T/ R- b" C1 c# Z$ t7 {) }还有很多,如有需要我把资料发到你邮箱里 ) g+ S* [% ?, B1 Q7 Q* Q
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