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发表于 2012-11-13 08:48:12
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1判断语句5 C& H; @3 b6 t( r% ~8 Z0 z6 x6 Q
if <condition> then6 Y# F0 p5 P T+ B# A! Y8 h
<statement sequence1>;
7 Z( q' w2 c0 d elseif <condition> then& d# d8 O( N! S5 _) D) v ^
<statement sequence2>;- s; v1 h! B; Y
else ! o3 O- J2 `! @7 e6 F8 R7 t/ K
<statement sequence3>;
, l: [* Z$ @& ^3 I/ S end;
: _' A: b" n P4 _& q如果分支比较多，用：
) R3 z- {; h" n" w) }. G* L inspect <expression>
! w4 Q* u% j, [' i$ P when <constant_list> then
& F- ~5 ~" [) s <statement sequence1>;
1 G2 E, M; C( W e when <constant_list> then
( ]: T4 Q5 @7 P- f; a9 { <statement sequence2>;' k6 r8 u* [ `3 T% x8 F- d
...
( w6 J" O F4 y, ^! E3 j0 } else
/ ]- P( t4 d* L* z% ^ <statement sequence3>;3 {& V8 r& s P2 e" ^# F
end;. n: U I# U- W& g) C7 u
: |0 U* ]5 \" n- Q6 d3 B$ P5 g2循环语句
d) S* D- o- N% C (1) from <statement sequence1>' i. _8 V, i2 ]0 N% ]
until <condition> loop
! G# p- I" }* a7 l; b& ], g. y <statement sequence2>;0 {0 W% \' W/ o6 }6 |- }( f
end;, x% q6 e' w' O
(2) while <condition> loop2 U u- e# ~* r* z7 J
<statement sequence1>;3 \$ e. _4 _, k0 ]9 i0 C
end;, P2 [. P" p: G
(3) repeat , P7 Q! i# r% o6 ~# {# V* e
<statement sequence1>;1 n, @4 Y* x- [( X* J# k; ~
until <condition>;
" a c% B5 W. b) n0 E% Y" N7 P$ N (4) for <condition> to <condition> loop$ E% o6 R% p0 A- c1 P8 J
<statement sequence1>;) H2 }* A1 D+ t* o
next;
2 j8 S' ?1 w. f" G3中断语句6 S; p5 g/ j* s5 A: J6 o
waituntil <condition> prio <integer expression>;* z" J" @" K, ]
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以上为常用的函数！5 T( I$ b4 b8 X2 B1 E$ t% l
还有很多，如有需要我把资料发到你邮箱里
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