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发表于 2012-11-13 08:48:12
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1判断语句4 F$ l" |( u! o }( L
if <condition> then
K6 H% L1 g+ [" \/ u8 p <statement sequence1>;
/ Y* g3 ~" |( e! B( [ elseif <condition> then
! T" x3 ]; a3 {. k1 [* x <statement sequence2>;
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<statement sequence3>;: |4 x# b* O6 G; g
end;
! h9 y: X) D1 X$ g0 O如果分支比较多，用：
1 D0 A8 }* e' r5 |9 P4 o( a2 ]/ S inspect <expression>
3 f( X* ^2 w" h* ~0 K, H when <constant_list> then
" \5 |$ {7 m; R* w6 ~7 g3 o# i# F) { <statement sequence1>;
1 z1 W3 X7 ` Q5 w when <constant_list> then
( c* o/ e4 j9 a! s <statement sequence2>;2 [. L7 I9 m1 N4 K) }
...
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<statement sequence3>;; s2 e: n# u3 C3 O
end;6 y& Q1 m( c* P# q
- P) |8 E- b/ @/ F2循环语句
$ m0 L1 R, M$ A6 J$ y/ n, v (1) from <statement sequence1>0 P- y( r& C3 w+ | P D& l; \
until <condition> loop' e$ }5 {* v i% W" z0 A0 c) a8 R
<statement sequence2>;- C d) { h+ z# t. Y4 Z
end;6 r/ J9 ^* `! m% v
(2) while <condition> loop- |7 _6 L* c2 V* D5 Z
<statement sequence1>;
, {( {8 w' p7 }% d& Y/ N1 S( u7 ^2 _; I end;5 |9 o+ q: s- |) ^8 m4 ^! ]
(3) repeat
8 J) I- _6 c3 l1 K' t; t- f! H <statement sequence1>;2 M/ h3 @1 c4 Q7 j! c8 q/ v# w$ t
until <condition>;
9 w. q+ V$ G; y7 ]. u (4) for <condition> to <condition> loop8 t4 A) t- Z* b7 ~! t
<statement sequence1>;
8 S9 ~7 y5 t0 f: V next;
+ y+ h' `* Q0 e( Z# W3中断语句
& V5 ?2 W2 o0 }5 t. Z. P3 I5 ^ waituntil <condition> prio <integer expression>;
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以上为常用的函数！% o% G# d3 S7 p
还有很多，如有需要我把资料发到你邮箱里 % N4 E+ |& J0 @5 }* v
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