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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
7 ?7 S W' H- k" {6 S7 O% ~ if <condition> then
' n" k2 F: k5 `$ \3 U+ h& f2 L- q" j% e <statement sequence1>;9 D/ m/ G! L- R4 |7 d, Y: R
elseif <condition> then$ Z& X1 u. _; {% K, \- j
<statement sequence2>;
2 N e ^9 L: M+ m8 ~( U* j else . {! c/ ?3 E! s
<statement sequence3>;
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如果分支比较多，用：- h, m5 v0 Y. r6 C
inspect <expression>
3 w) q/ v' b k- B3 |1 m, _ when <constant_list> then2 N9 u! n- v" |% r! f
<statement sequence1>;
- m* ?7 o. H9 n4 _* ]& O when <constant_list> then
: O! G* W+ N3 ~ J$ k <statement sequence2>;2 S' h4 [' ~2 Y. I
...
& u, F" [" e4 _ else, N: m8 Z/ z0 Z8 a: ]# X# o
<statement sequence3>;
& B h6 n7 J, w. @end;
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2循环语句
9 r+ j6 o. @, w1 z (1) from <statement sequence1>
1 a" `& l) c9 a6 a" w) s/ n until <condition> loop
1 n, q8 o2 ^( u! d5 W <statement sequence2>;
! ?& V* \2 l* X& D' g end;7 _" S' y3 J/ }9 u8 K! [
(2) while <condition> loop- m' ~8 n7 V# c( a" }
<statement sequence1>;% u' k6 H7 q! v
end;7 u4 M% [7 X9 A, c# ?8 t
(3) repeat d4 Z7 Z8 r$ J/ m, o
<statement sequence1>;. j# a. e/ t1 b& Z" N
until <condition>;
6 M: }5 W/ k! C/ w (4) for <condition> to <condition> loop
3 r3 G7 {3 b4 `' F+ ?3 P B$ P, l <statement sequence1>;
+ I, `, x0 A9 J next;( \$ U H, z @" I1 n& h1 s
3中断语句
/ N2 [$ V! E }# K waituntil <condition> prio <integer expression>;
, ?3 x" v: c W# z0 }; R$ T% f b/ ?9 c/ E( s' W/ {
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以上为常用的函数！
4 Q# M$ F; h/ h8 t( y+ h还有很多，如有需要我把资料发到你邮箱里
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