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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
5 A3 }# i7 n. P7 e, y6 @2 Z( c if <condition> then
! a, ?& e! B$ F {, W3 U <statement sequence1>;- e3 _; _& d( r( ?& S7 p
elseif <condition> then
3 z, j' T$ T' x; V <statement sequence2>;$ i. j, c- V( w$ f
else 2 v2 x( y. p1 p+ s0 `! _6 p8 e) Z
<statement sequence3>;
" a. k6 X; ?3 r# r end;
( t$ @* w& x5 Z, `1 z+ m如果分支比较多，用：. }; o/ I3 R2 Y8 \3 T
inspect <expression>
# _7 T+ _# k5 \* ]- W when <constant_list> then2 E1 A1 R; F" v- h5 E5 A
<statement sequence1>;
! \# F& }. g8 p! q; ]( O, b6 C Q" Q when <constant_list> then
" R3 \' I% ^% Q! w: h <statement sequence2>;* {: Z4 O9 ?; g9 @3 c- }
...
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<statement sequence3>;! U5 }" q2 H$ H, C& G4 c% R! J
end;
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: D' m! t4 A& f0 O3 H/ g2循环语句
& H5 K+ `( Z: E) y (1) from <statement sequence1>2 w D) B3 c* c' V8 W; o3 ^
until <condition> loop( b% J5 U- ^: v' X, r: B5 V
<statement sequence2>;- `6 D& q2 K w: p
end;
4 N$ U# }) P8 W2 l (2) while <condition> loop5 }; o0 U: c; V! d& }4 K8 o
<statement sequence1>;% K' Z; A7 T3 W
end;3 [/ v* G v }+ H! y* _5 S$ u* T5 N+ R
(3) repeat : R* I& J3 s! a7 b* ^2 j5 W! F
<statement sequence1>;* O P$ E/ n- i# W
until <condition>;
# l3 T5 R* c2 V( B (4) for <condition> to <condition> loop
, ]/ `6 W: s/ _& {8 E. L <statement sequence1>;9 G! C& c. C. z; \7 y2 {. y
next;7 O' L5 G) z* V! {
3中断语句
L% H4 }; u/ |6 E7 @6 u waituntil <condition> prio <integer expression>;7 f5 c/ s" f, i
$ ^3 q& }6 M8 h# ^1 t# S
) H' M* p8 ]3 E% ~以上为常用的函数！/ v5 C2 e; M0 C0 ~* |, W+ I, K" x
还有很多，如有需要我把资料发到你邮箱里 ' u ~: N3 j& U* P
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; { p( m: z6 C" O4 A7 T/ C& i
N, ?- s2 |2 L9 P6 x# _6 A1 f' |
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3 ?2 ]6 x2 O5 K + a U' e& z h& D$ l! _4 _1 f
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