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发表于 2012-11-13 08:48:12
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1判断语句9 [# K$ X# Z# d! d$ R1 z
if <condition> then
4 x; ~8 o9 F( C1 G <statement sequence1>; w# v3 L% L4 w; f* K4 d( Z! V4 y- h
elseif <condition> then7 M6 |/ J7 C+ l% x2 Q. I4 P
<statement sequence2>;3 @6 h7 J8 C: T+ c' _
else
+ z$ C/ _! u- {; Z) D1 j( z <statement sequence3>;
9 f$ u1 U3 k7 J end;: F; }3 g, Q' M' K1 v
如果分支比较多，用：
; Y! e+ X/ | c8 a4 n inspect <expression>: x# a2 H+ ^/ [4 b/ E3 P! P4 g6 d
when <constant_list> then% l. z, V% D( x
<statement sequence1>;
4 \" l3 {1 P" a: Y' R" W0 ^' ] when <constant_list> then
# B2 X& s; R" J9 y& F" Q0 | <statement sequence2>;
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else
7 y6 k. Q! W. B, a& n <statement sequence3>;
' `9 z H; `& W8 [# M& n/ eend;
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: j" y0 B( t% V& j& n( x0 H5 a2循环语句
4 W, _# N! `% M5 d (1) from <statement sequence1>, D% l. f+ w8 u' F
until <condition> loop$ e' f/ l: o: N9 R6 |
<statement sequence2>;$ ]6 a3 j+ u. |. T s
end;2 u( I4 p% w: J: j% ~. y+ y
(2) while <condition> loop0 [; g# G( _- E# ~/ ~# {
<statement sequence1>;
) A1 I) |; s2 Q( x! t: X8 s+ ~2 K end;6 U5 \& z4 z0 P% m, F0 l
(3) repeat : M" F( d4 F& V+ c l2 T. `( J$ m
<statement sequence1>;& Y" f' N6 O6 I; ?$ |! S6 t
until <condition>;6 ?6 f$ y5 l& t$ V/ D7 W
(4) for <condition> to <condition> loop4 [- Z# T7 P+ e6 [2 x, `; D
<statement sequence1>;
- C/ h2 L; n; K1 V next;( Q+ q1 q- _. {) Y4 Q
3中断语句. s% N- k1 T# x" _
waituntil <condition> prio <integer expression>;
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. l1 K9 b m0 f3 m以上为常用的函数！
9 z9 d+ Y: b& }3 V3 b1 w还有很多，如有需要我把资料发到你邮箱里 # f& B7 K. N# {' C$ D0 ~. }$ n
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