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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
4 a4 [$ m0 O4 e4 Q$ L if <condition> then
' a! T+ z' n. L$ P8 N% ] <statement sequence1>;
, t( n) ^* e z* _ elseif <condition> then3 \/ c0 R: d$ p
<statement sequence2>;
2 C. z5 ]7 f8 Z: o else , d% ]8 G5 O* g, p0 m
<statement sequence3>;# m* z+ r" ~' g* y6 E( l% ?
end;
3 P0 P" O% ]: V% f如果分支比较多，用：
T" f" u6 Z; d% ^5 @- b! @: w inspect <expression>
+ K ?0 v$ y( _4 [; V2 O& g when <constant_list> then
# r3 ~3 ]% Z5 G$ w# ?2 U <statement sequence1>;1 E" K$ `0 C" |" a& l- K: a
when <constant_list> then
9 Y" i8 y; D, O: N7 q7 @; Q' k <statement sequence2>;
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else
3 X4 z; G$ a; `# d <statement sequence3>;
( n$ c" Q0 C1 I# V0 `# {end;
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2循环语句
: F( g1 s; q q' R m; i0 s% e (1) from <statement sequence1>! p7 H6 a7 l/ P ^4 N
until <condition> loop4 @, |$ N7 z9 }! D5 ^+ Y
<statement sequence2>;
6 T% |' e' v) b+ m end;
( j1 _, V, ?) p* Z (2) while <condition> loop3 q& j* S$ h2 L) ~: h
<statement sequence1>;& K6 T) w+ n. p
end;
# _. r& K' t& I: ]! ]& ~# z" R (3) repeat 4 Y" w' {4 U* Y* t5 z* A- i
<statement sequence1>;
) B1 r% ~# |* [4 U4 ^ until <condition>;. d+ s. U- P+ u' J* h" s
(4) for <condition> to <condition> loop; S5 j5 J+ L" C9 F- m& x
<statement sequence1>;: X( g v: W( I5 u" E; M4 D( u& }
next;% d$ X0 A9 P, q( P, F, a
3中断语句
3 }1 a/ E" k2 W6 s+ m waituntil <condition> prio <integer expression>;
& L$ a: x ^ V$ L7 I
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2 b1 X* L9 M- c& u' Q `) q以上为常用的函数！/ G3 r$ I$ |/ Y) Y
还有很多，如有需要我把资料发到你邮箱里 6 l7 g0 P) Q: H7 q4 u) D4 f5 N; _: F
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