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发表于 2012-11-13 08:48:12
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1判断语句
: V" p9 D$ m; \+ d if <condition> then
" M* k( n7 c; W0 o1 F <statement sequence1>;$ `7 j7 K4 z8 |7 w5 c0 l
elseif <condition> then$ C' l* e/ F$ J4 p
<statement sequence2>;
$ `1 f: j2 W2 n else . ~5 K q/ O* }. \2 O6 X& y1 _; N. m% |
<statement sequence3>;
) t0 c2 ?4 M$ y k; o end;
5 ]5 @6 D5 V: j5 B) U; d3 S如果分支比较多，用：
. \6 E! B, y+ U5 j inspect <expression>5 E; W3 K. w: J7 t( V, k2 m
when <constant_list> then/ b8 K3 w) W+ ^$ K1 t
<statement sequence1>;9 z4 h4 b. M/ Q8 t. m) d
when <constant_list> then
8 L# d* t& ?9 f/ E <statement sequence2>;% q. j- e, y0 G% s! z: Y
...
+ c+ h' A- E: T# t else
' a* }7 ^9 r7 l. |4 ~6 D <statement sequence3>;0 a2 M( _( V# Z7 p3 R/ @
end;
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2循环语句
) U( `: b, G5 @5 z6 [0 x2 U- r (1) from <statement sequence1>% ]- A# m o! m) a6 m# j N
until <condition> loop2 ^) y& J" j* a: Z
<statement sequence2>;
: Y( q( B3 @! |& }& N end;7 }- m+ ]- |4 O3 ]. D+ D# {
(2) while <condition> loop4 V3 T( z8 [7 a% y7 p! y
<statement sequence1>;
# l8 L% |- h) z$ S, C end;$ v& c# ]: E6 u) j6 [! M
(3) repeat
5 V- Q6 ?. G" P8 t* V6 T, y <statement sequence1>;
* W0 f4 |5 {, R6 Q* m, Z! K until <condition>;
/ {7 ?) A3 N' s: t. }0 N (4) for <condition> to <condition> loop
/ d5 A6 b/ F, \: n+ D' ^5 { <statement sequence1>;
4 J O: X5 A% G. P6 @( s/ t1 X next;
7 i5 D7 u1 D6 S& `2 U# g: v3中断语句0 _, H3 ^9 \' i5 g! _) a7 X& j
waituntil <condition> prio <integer expression>;6 c! {2 x. o3 ^
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以上为常用的函数！
4 O& E, {* D+ S: {还有很多，如有需要我把资料发到你邮箱里
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