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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
1 J* }$ ?1 \% b& m% ^5 P/ e if <condition> then* u% }! `/ K5 S z. y0 d. Y5 H" A
<statement sequence1>;
3 L3 r+ A7 N& Y, f7 z6 W, \/ }- O elseif <condition> then1 J) b9 U" t, f( N4 t: Q
<statement sequence2>;$ ^$ o; {% b0 r: G7 ]# [+ Z; z
else
8 [5 N% o, `1 Y# T& P; z <statement sequence3>;
/ L, G: Z/ m+ A- I" P; e end;7 r' f* }& E# c" `4 n; |
如果分支比较多，用：
, p% `% Y+ ]# e" o" A inspect <expression>: w0 E4 [% U% C& E8 i3 M+ C/ x
when <constant_list> then4 c. u7 `$ m# ^% p, I- V
<statement sequence1>;
r8 H* N- d9 ?- L when <constant_list> then
/ D1 U+ w: L$ K; ~& u- n9 f0 }4 _4 | <statement sequence2>;1 D/ A# A( H/ w1 T, t, d- t
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else* a3 s' c2 w9 I6 ~: Z/ S0 q% f
<statement sequence3>; y% m6 }5 k; j% e1 S% V6 K
end;6 O! X$ g4 N7 y5 [ E
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2循环语句
! P; W1 c! }% V' ~ (1) from <statement sequence1>
+ Q+ ~. T f7 {0 A; R until <condition> loop
) j9 b8 F. [% @# _ <statement sequence2>;
, U) t$ j! p* \2 n/ \$ K end;
# A: c+ ]: `2 B5 |3 X (2) while <condition> loop
* ?# M+ b' K# K1 F9 N: b <statement sequence1>;
) A* W6 w B" q9 S end;: M% i6 I* i% N
(3) repeat
1 O/ g0 b3 A2 D% k/ I5 h3 w <statement sequence1>;
, f4 k+ _ c0 G" `$ c7 E: h S* } until <condition>; u' Q8 P% r4 l: t1 g& t; y9 u
(4) for <condition> to <condition> loop
1 G# r% f# c8 }# M6 P5 j& ^ <statement sequence1>;
. E P7 n6 T% h1 k p next;* ]4 q* F) w1 @8 F2 ^* ?3 _) x% h
3中断语句( @9 B% } o ]! t6 `
waituntil <condition> prio <integer expression>;& U: K$ _/ `- }% Y! w/ a- w
* c$ X) N, m: D n3 F7 x- g
3 S T. E. y* i# y" A$ M- p以上为常用的函数！
+ ]; S% y+ Z% S" Q9 l还有很多，如有需要我把资料发到你邮箱里
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