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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
$ n- Q9 [$ s! D3 Q( v if <condition> then) {$ U5 T, H0 k% w% }, z/ k, n
<statement sequence1>;
2 z* [) p6 e- ] elseif <condition> then& O: F' v: x& X# ~0 q7 g
<statement sequence2>;' _: M1 m! F3 ~2 G8 O& a) {
else
0 i$ T6 q7 U/ M5 o/ I <statement sequence3>;* _5 ]& y& |$ {. W' a
end;- U; o3 L1 o+ D4 {; D+ J
如果分支比较多，用：
$ z8 @8 o: a% D; v* W } inspect <expression>
1 M! D8 d2 O' N7 A% B: f T when <constant_list> then& ]# Q* h4 t6 p2 I' {: L# b7 z
<statement sequence1>;: o) i- k4 v# |1 C9 f) \; {6 N
when <constant_list> then
7 f% j |4 F6 k0 e1 b <statement sequence2>;
, W# s- S& {6 M4 l ...5 ?- R6 o5 ^2 N: k; B* J% B* |+ o6 J
else
& i$ a' j y6 G9 j <statement sequence3>;% ?% h: R/ Y6 q) H& Z5 _
end;9 P( R [* s& T" E
1 y4 M @6 X$ _3 D3 v2循环语句1 m9 O7 o; g) Z1 B8 S
(1) from <statement sequence1> K* _+ p7 W9 |
until <condition> loop
/ |/ p2 y( d& S/ B" l <statement sequence2>;
5 H3 q: }! r4 I& h& r- @4 u end;# R! M& b# a( s) M; o: @3 N
(2) while <condition> loop K. D' _: {* r1 D/ A* [
<statement sequence1>;: u/ M! f8 x! N, e" i
end;! m/ ^" u7 J' [! X
(3) repeat
0 X- X# L0 M/ d* E <statement sequence1>;
" F$ G' X5 p' k4 M6 p/ K! y( L8 k6 j until <condition>;1 `; R7 \; o1 a6 W
(4) for <condition> to <condition> loop
# v) ?! P" d; d3 Q* N8 H <statement sequence1>;
- u0 Y; ~- K& T' A9 t next;# H$ z% ~9 J% s) n" p% r
3中断语句
, _% i( p( W3 z; f' Q waituntil <condition> prio <integer expression>;
8 r8 m* Z( _% A( g! _) h2 `: T
9 K/ o( }/ Q7 g8 [$ r1 h
( _7 h" m; N/ P" Q( T以上为常用的函数！
( i- U5 T8 t, E7 D2 }& M还有很多，如有需要我把资料发到你邮箱里 ) m; @9 T; s% r ]" t/ \
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